A novel electrocatalyst with three finely-tuned active sites was created by doping Pd atoms to Cu₂O followed by a in situ electroreduction treatment, which can speed up the complex reactions of CO₂ electroreduction to C₂₊ products in high FE and yield of C₂₊ products at ampere level current density.

Recent progressive development of single-molecule magnets has advanced to the realm of heterocyclic organolanthanide chemistry. This minireview aims to highlight this progress and gives perspectives for further development of such single-molecule magnets.

Recent advances on the different electroreduction applications of metal–organic framework derived carbon-supported metal electrocatalysts with customized structure, component, and electron structure are depicted. Thereout, morphology control, component/construction modulation and controlled metal loading strategies are systematically sorted out based on three key components of metal–organic frameworks, namely metal nodes, ligands and modifiers.

Ribosome-free translation of an RNA sequence to a pentapeptide has been achieved in the absence of any enzyme or ribozyme. Fidelity was demonstrated for each translation step. Our results show how efficient an early, primitive form of encoded synthesis can be.

Photoswitchable derivatives of the antiseizure drug carbamazepine have been developed to inhibit nerve signals locally and on-demand using light. Two compounds allow controlling hippocampal neuron firing and zebrafish larvae locomotion with light, and Carbadiazocine (right) also offers in vivo analgesic efficacy in a rat model of neuropathic pain and a simple and compelling treatment demonstration with non-invasive illumination.

A versatile molecular clock and emitter consisting of pPFPA-co-SP and PTF1 has been developed via an “one stone (rigidity) two birds (clock and emitter)” strategy. Combining the synergistical responses of both pPFPA-co-SP and PTF1 toward the rigidity change of polymer network enables transient data display along with dynamic multicolor fluorescence switching, providing great potential for innovative applications from data security to display.

Amorphous 2D nanosheets with abundant nano-sized perforations and oxygen vancancies, mixed with a small amount of monolayer MXene, are coated on PP separators. This simultaneously regulates uniform Na deposition, facilitates the kinetics of polysulfides conversion, and enhances the mechanical properties.

A novel model of H-bonding EDA complex was first reported for the modular and selective hydrothiolation and hydroxysulfenylation of carbonyl activated alkenes with diverse thiols under visible light conditions.

Significant directionality bias for the coupled rotations of a light-powered molecular photogear is evidenced by analysis of its enantiomeric states. Using a custom designed LED-coupled chiral cryo-HPLC setup, the sense of directionality of coupled double- and single bond rotations during photogearing could be elucidated directly. Electronic effects are found to be crucial for directionality bias instead of steric effects.

An aqueous conductive emulsion binder with the sulfonate-containing hard elastic copolymer core and the conjugate polymer shell capable of forming a bicontinuous mesoscopic interpenetrating network was synthesized. The lithium sulfur battery assembled with this binder has excellent electrochemical performance, especially rate performance and cycling stability.

Sulfur/nitrogen dual-doped porous carbon nanofibers spatially confined sulfur nanoparticles (S@S,N−CNF) composite with yolk–shell sulfur@carbon nanostructure is elaborately fabricated. Benefiting from both the synergistic electrocatalysis and spatial nanoconfinement of S,N−CNF host, S@S,N−CNF cathode exhibits reduced energy barrier and accelerated sulfur reduction reaction kinetics enabling highly improved aqueous Zn−S battery performances.

A method to perform mRNA display selections against protein targets expressed in mammalian cell lysates has been developed. This approach circumvents the need for purified proteins to be produced, giving access to targets that are aggregation-prone, contain disordered regions or that require post-translational modifications.

A boronyl radical-catalyzed intermolecular (4+2) cycloaddition reaction of azetidines with alkenes has been developed for efficient synthesis of 3,4,5-polysubstituted piperidines, which contain the medicinally relevant key heterocyclic motif and are not readily accessible by other methods. The reaction features high modularity, atom economy, simple operation, inexpensive non-metallic catalysts and broad substrate scope.

A potassium-based DIBs with superior cycling stability at −60 °C is established by coupling MXenes anode with PTPAN cathode, in which the co-intercalation behavior of solvated K⁺ endows MXenes anode with fast K⁺ kinetics to unlock the outstanding performance of PDIB at ultralow temperatures.

(MA)₂CuX₄ (MA=methylammonium; X=Cl, Br) leads to giant nonlinear absorption coefficients and substantial modulation depth. These performance improvements are correlated with the specific alignment of metal d bands and ligand p band in the Mott-Hubbard compound, and a larger p-d transition probability to d-d transition probability associated with the Jahn–Teller distortion.

A new concept of entropy-driven hydrated eutectic electrolytes (HEE) with abundant solvation configurations are proposed for all-temperature Zn-ion batteries. The diverse and uniform solvation structures distribution enables the HEE possess much higher solvation configurational entropy than conventional aqueous electrolytes, leading to its superior anti-freezing ability and high thermal stability.

We developed novel pocket-independent STING-activating agonists (piSTINGs), which act through multivalency-driven oligomerization to activate downstream signalling pathways. piSTINGs could serve as novel STING agonists for vaccines and combination therapies. And STING oligomerization is a useful strategy for the development of a new generation of STING agonists.

A highly selective and scalable Ni-catalyzed electrochemical Cross-Electrophile (XEC) reaction between (hetero)aryl halides and primary and secondary alkyl halides was achieved via an in situ generated Ni^II aryl amido intermediate. The Ni^II aryl amido intermediate stabilizes the Ni^II–aryl species to prevent the aryl–aryl homo-coupling side reactions and acts as a catalyst to activate the alkyl bromide substrates.

The asymmetric total synthesis of eight tacaman alkaloids was accomplished. A chemoenzymatic Baeyer–Villiger reaction was used to produce seven-membered lactones, establishing a stereogenic center at the C14 position. Acid-regulated cyclization cascades involving the Pictet–Spengler reaction afforded cis- and trans-fused tetracyclic cores. DFT calculations indicated that the stereochemistry of this cascade was controlled via hydrogen bonding.

Using superbasic sodium amide NaTMP as a catalyst, isomerisation of alkenes at room temperature under mild condition has been accomplished. Isolation of organometallic intermediates and DFT calculations have revealed the key role on TMP(H), acting as a proton source and facilitatitng the migration of the double bond.

We discovered a G4 unwinder, 2′-F C3, capable of promoting the unwinding of both DNA and RNA G4 structures. In living cells, 2′-F C3 does not induce severe DNA damage at a concentration below 10 μM, nor does it broadly interfere with G4-related biological processes. Specially, it can enhance the translation level of G4-containing mRNA.

Phosphorene-fullerene hybrid with fullerene directly bonded onto the surface (basal plane) of phosphorene via P−C bonds was theoretically predicted “improbable” due to the strong repulsion between phosphorene and neutral fullerene.It is now synthesized by an electrosynthesis method involving C₆₀²⁻ dianion as an intermediate generated by electroreduction of C₆₀, significantly improving the stability and visible light/near-infrared (NIR) photocatalytic hydrogen evolution rates of phosphorene.

TFEP reconstructs the Helmholtz plane on HC anode and boosts a robust F-rich SEI film by strongly adsorbing on the surface of HC and dragging the outer PF₆⁻ anions, thus greatly enhances the mechanical stability and the Na⁺ ion diffusion kinetics of the electrode/electrolyte interface.

At the metal–metal interface, the minimized difference in the d-band center between these metals (Δϵ_d) reduces the free energy difference between hydrogen adsorption on metal(i) and metal(ii) and lower the kinetic barrier to hydrogen spillover between them. As a result, it can achieve a record high electrocatalytic nitrate hydrogenation efficiency at low energy consumption.

CUPMOF-5, an efficient CO₂-specific adsorbent to be used in a closed-circuit Xe recovery process, offers a promising solution to Xenon scarcity in medicine. With exceptional molecular sieving capabilities confirmed via SCXRD and simulations, CUPMOF-5 achieves an outstanding 99.8 % Xe recovery rate by dynamic breakthrough experiments, making it ideal for online CO₂ removal and Xe recovery in anesthetic circuits.

Two n-type organic semiconductors featured with fully fused structure has been synthesized by a newly developed strategy to generate high-performance organic field-effect transistors and organic solar cells. The properties of these new organic semiconductors were systematically investigated and elucidated experimentally.

A facile on-resin ring-closing amidine formation method was developed to synthesize peptides bearing diketopiperazine derived cyclic amidine structure at the N-terminus. Natural products streptamidine and klebsazolicin as well as analogues were synthesized by using this method.

Half-metallic V₂O₃ was firstly reported as a dual-functional photocathode for PZlBs. The half-metallic V₂O₃, combined with the three-dimensional superstructure assembled by carbon nanosheets, established rapid charge transfer networks and robust framework. Consequently, the V₂O₃@CSs photo cathode delivered record zinc ion storage and photo rechargeable properties. This study offered a promising direction for the capture and storage of solar energy.

In this study, we devised a novel approach termed “key-cylinder lock mimic” to fabricate seven staggered stacking Covalent Organic Frameworks (COFs). This method leverages ionic liquids as both solvents and mediators, operating under mild conditions. Through meticulous selection, ionic liquids possessing appropriate molecular volumes and symmetric bipolar functional groups were identified as pivotal elements in manifesting the confined interlocking effect and steric hindrance essential for the synthesis of staggered stacking COFs.

We report the design of a reduction co-catalyst-tipped and oxidation co-catalyst-capped Janus heterostructure, which reveals the benefits of efficient interfacial charge separation via transfer of photogenerated electrons and holes, respectively, to Au and RuN₅ sites for selective organic synthesis and H₂ production via photoredox paired reaction coupling.

We report a novel material (C₅H₆NO)⁺(CH₃SO₃)⁻ (4HPMS), exhibiting the strongest second harmonic generation (SHG) intensity among all heat-stimulated nonlinear optical (NLO) switches. We unravel an unprecedently easier breaking of the shorter hydrogen bond and a rare large thermal hysteresis of 50 °C during the reversible structural phase transition.

Dynamic combinatorial macrocyclic disulfides acted as non-covalent crosslinkers, adapting to polymer folding. Initially, small macrocycles fold the polymer into a loose state, which then catalysed the formation of larger macrocycles to enhance folding efficiency. Our work deepens the understanding of interplay between adaptive synthesis and dynamic folding, advancing the strategy for replicating protein folding into functional nanoparticles.

Through-space charge-transfer materials excel in organic light-emitting diodes, with π-stacked structures being effective frameworks, but the lack of robust construction methods hinders progress. Double C−H activation has now been used to construct two donor-acceptor-donor (D|A|D) type through-space charge-transfer materials derived from C11-substituted indenofluorene skeletons, with maximum external quantum efficiencies of 28.6 % and 16.2 % achieved.

A single catalytic system has been developed for the production of six products, namely nitroso, hydroxylamine, azoxy, azo, hydrazo and aniline compounds, from nitroaromatics. Furthermore, a detailed reaction network for the catalytic hydrogenation of nitroaromatics has been constructed based on systematic investigation into the controlled production of all products and their chemical reactivities via oxygen-isolated characterisation techniques.

The addition of aryl radicals generated at a carbon cathode from (hetero)aryl halides and protons generated at a carbon anode from Hünig's base enables the efficient anti-Markovnikov hydroarylation of olefins via a paired electrolysis pathway.

A highly-branched polyurethane capped by cyclic carbonate was reported to perform asynchronous crosslinking with epoxy. The distinctive ring opening kinetics between the cyclic carbonate and epoxide groups, combined with a moderate branching degree, result in unique phase evolution. This process effectively toughens the adhesive and rapidly increases shear strength at room temperature to a level suitable for structural bonding.

Confining conversion chemistry in intercalation host enables an integrated anode structure of iron oxide/hydroxide-pillared titanate. The iron-based conversion reaction is spatially and kinetically confined within sub-nano interlayer of titanate, achieving long cycle life, fast kinetics, and universal generality to the electrolyte medium. Two unique types of full batteries are further assembled, exhibiting low redox polarization and long cycling stability.

A range of 2D and 3D bicarbazole-based COFs with varying dimensions, topologies, and linkages were employed to systematically investigate their piezochromic behavior, revealing significant pressure-induced emission enhancement with an increase of 16-fold, as well as rare instances of blue-shifted emission.

We demonstrate that asymmetric coordination of single-atom copper catalysts can greatly enhance the efficiency and stability of NO₃RR catalysis, which attributes to the accumulation of NO₃⁻ on the surface and the reduction of the energy barrier regarding the formation of the key reaction intermediate.

The layered oxide cathode material featuring dual-site ordering superstructures is prepared by simply regulating the calcination time, where the optimized Na⁺/vacancy ordering significantly elevates the operating voltage and the transition-metal honeycomb ordering effectively stabilizes the structure, leading to the increased energy density and high cycling stability in sodium-ion batteries.

A nanohouse-like S-scheme heterjunction photocatalyst is designed via a nanoarchitectonics strategy, exhibiting high photocatalytic nitrite reduction performance with an ammonia production rate of 2454.9 μmol g⁻¹ h⁻¹ and an apparent quantum yield of 8.02 % at 400 nm in pure water.

It is a representative case study of tough, chemical resistant and closed-loop recyclable dynamic poly(ester-disulfide)s of which their highly crosslinking nature was contributed by a synergetic effect of covalent ester-bond linkages and non-covalent hydrogen bonding, metal-ligand coordinations, subsequently endowing the fabricated optical-transparent materials with excellent mechanical properties, decent chemical resistance and facile closed-loop recycling capabilities, comparable with engineering polymers.

A series of imine-linked crystalline free-standing porous organic cage (POC) membranes were constructed via interfacial polymerization at room temperature and atmospheric pressure conditions for molecular sieving. The crystalline POC membranes were fabricated by fortifying intermolecular interactions through the induction of intramolecular hydrogen bonds.

Carboxyl-enriched supramolecular polymer (perylene tetracarboxylic acid—PTCA) has been elaborately prepared. The efficient tandem proton transfer process remarkably facilitates 2e⁻ ORR to synthesize H₂O₂ and in the meanwhile promotes 4e⁻ WOR to evolve O₂. As expected, the catalyst realizes outstanding H₂O₂ yield in air and even argon atmospheres without any sacrificial reagents.

An ON-OFF effect of amine ligand enabled Rh₂(II)-catalyzed S_N2′-type silylation of propargyl ester bearing a terminal alkyne moiety using hydrosilane was achieved. The fine-tuning effect of the tertiary amine is crucial in the improvement of reactivity. The tertiary amine plays a significant role in assisting the formation of the Rh−Si species via a concerted metalation deprotonation (CMD) mechanism and facilitating β-oxygen elimination.

The synthesis of a highly efficient and reusable metal-organic layer (MOL) catalyst is described. The stable site-isolated mono(phosphine)-rhodium complex on the MOL exhibits high catalytic efficiency in the hydrogenation of mono-, di-, and tri-substituted alkenes and the reduction of nitriles to primary amines with turnover numbers of up to 390000 due to the lowering of reaction energy barriers by the low steric hindrance of catalytic active sites.

Single-crystal porous frameworks were constructed from shape-persistent molecular cage building blocks and unambiguously characterized by single-crystal X-ray diffraction. The resulting framework showed a high fullerene binding capacity, fast binding kinetics, and a high C₆₀/C₇₀ binding selectivity. The host–guest binding interaction can be turned on and off by treatment with weak acid/base, which enabled the high-efficiency flow-separation of fullerene mixtures.

Using complementary in situ characterizations including atomic force microscopy and X-ray photoelectron spectroscopy, we directly detected morphological/chemical evolution, Li plating/stripping processes and SEI dynamics in all-solid-state Li-metal batteries. Furthermore, Li-ion field distribution at the interface between different solid-state electrolytes was successfully visualized by Kelvin probe force microscopy.

This study unveils novel intramolecular HAT reactions that produce azetidine, oxetane, and indoline derivatives. Facilitated by excited triplet-state carbon-centered biradicals, this process enables the 1,5-HAT reaction by suppressing the Norrish Type II cleavage reaction. It also pioneers unprecedented 1,6-HAT reactions initiated by excited triplet-state alkenes. Comprehensive experiments and DFT calculations support all findings.

A crystalline molecular material with olefinic groups has been used to achieve photomechanical motion in both single crystals and single-crystal composite films. This dimerization of dipyridyl ligands by [2+2] photocycloaddition introduces strain within the crystal, resulting in a variety of fast, flexible and continuous photomechanical including reversible bending and curling, movements that resemble a human performing various gymnastic exercises.

We created a 3D diamondoid superstructure called π-Diamond using a strained Z-shaped building block with a porphyrin unit and two m-xylylene units. It resembles diamond's structure and is driven purely by π-interactions. Hetero-π-stacking assembles four building blocks into an extendable double-walled tetrahedron, forming an adamantane unit and the diamondoid superstructure.

A strategy for preparing Cu catalyst with varying lattice tensile strain but without introducing additional components was proposed and confirmed to be effectively for inhibiting the dipole–dipole repulsion between *CO species and enhancing the adsorption of the *OH species, simultaneously. The Cu_TPA catalyst with large tensile strain achieves a high FE_C2+ of 90.9 % and a partial current density of 486.1 mA cm⁻² in CO₂RR with excellent stability.

The regional functionalization molecular design strategy that enables independent control of distinct pivotal parameters through distinct segments of the molecule. The proof-of-concept molecule A-DBN has not only attained a minimal FWHM of 14 nm but has also realized nearly 100 % photoluminescence quantum yield.

In this combined experimental (X-ray structure analysis) and computational (DFT-D3 calculations) study we have systematically evaluated the π-hole donor ability of elements across Groups 9 to 12 using metalated porphyrins (ppys) as model systems. The results obtained will make impact in the fields supramolecular chemistry, crystal engineering and catalysis, where noncovalent Lewis Base⋅⋅⋅Metal interactions play a crucial role.

Die lokale pH-Messung zeigt, dass das bestimmende Anion an der Grenzfläche HCO₃⁻ ist, und zwar bei Potentialen, bei denen H₂O₂ bevorzugt gebildet wird, unabhängig vom pH-Wert des Hauptelektrolyten. Eine Au−Pt-Doppelzylinder-Mikroelektrode zeigt, dass die lokale HCO₃⁻-Konzentration insgesamt durch den Oxidationsstrom, die Pufferkapazität und den pH-Wert des Gesamtelektrolyten bestimmt wird.

Methoxysubstituenten von Gruppe IV meso Metallocenkomplexen ermöglichen deren Aluminiumalkyl (TIBA/TMA) induzierte Isomerisierung. Die meso Isomere galten bisher als nutzlos und mussten mühsam getrennt werden, wenn die rac Analoga zur Polymerisation von Propylen eingesetzt wurden. Durch die Isomerisierung wird die Ausbeute an isotaktischem Polypropylen um 400 % erhöht; ein Mechanismus wird postuliert.

Die Diterpensynthase AfAS aus Aspergillus fumigatiaffinis produziert Asperfumen mit einem neuartigen 6–5–5–5 tetracyclischen Gerüst. Dessen Cyclisierungsmechanismus wurde durch Isotopenmarkierungsexperimente und DFT-Rechnungen untersucht. Durch ortsspezifische Mutageneseexperimente wurde der Rest 65 als entscheidender Schalter für die Bildung von Asperfumen oder strukturell einfacheren Diterpenen mit einem tricyclischen 5–8–5-Gerüst entdeckt.

Kugelmahlen wird für die direkte Verglasung von diversen zeolithischen Imidazolat-Gerüstverbindungen (ZIFs) bei Raumtemperatur angewandt, was durch die Herstellung des ersten ZIF-Glases auf Basis von Cu²⁺ hervorgehoben wird. Diese Forschungsarbeit leistet einen wichtigen Beitrag zur Erweiterung des derzeit begrenzten Zusammensetzungsbereichs von MOF-Gläsern.

ATP synthesis against abiotic stress is achieved by biomimetic assembly microreactor based on phosphatase/Au clusters and ATP Synthase. Phosphatase is harnessed to generate both protons and Pi to support the synthesis of ATP under phosphorus-deficiency stress. Au clusters in the microreactor help proteins resist the destruction from ROS, and concurrently facilitate the photothermal-enhanced ATP synthesis.

The reversible aggregation of an oligoyne with 16 triple bonds is described. The association phenomenon occurs in spite of the flexibility and the minimal π surface of the oligoyne.

A cationic rhodium(I)/axially chiral biaryl bisphosphine complex catalyzes the [2+2+2] cycloaddition of homopropargyl enamides with alkynes at room temperature to construct tetrahydroindole skeletons found in natural alkaloids and pharmaceuticals with high yields and regio- and enantioselectivity. In this cycloaddition, the substituents of the enynes change the ratio of intramolecular and intermolecular rhodacycle formation when using terminal alkynes, varying the ee values of the cycloadducts.

An oxidative amination process enables the streamlined synthesis of pyridones. Cyclopentenone building blocks undergo silyl enol ether formation, followed by nitrogen atom insertion and aromatisation to yield pyridones. The developed one-pot reaction is mild, operationally simple, exhibits broad functional group tolerance and complete regioselectivity, and provides facile access to ¹⁵N-labelled targets.

An asymmetric paired electrolysis strategy for alkylation of sulfonylimines is reported. Anodic oxidation for benzylic radical formation and Lewis acid-catalyzed sulfonylimine reduction on the cathode are seamlessly cross-coupled using this protocol, providing enantio-enriched chiral amines containing a tetrasubstituted carbon stereocenter with high enantioselectivity under mild conditions.

By using the dimension-reduction strategy, π-conjugated p-C₅H₅NO (4HP) was introduced into three-dimensional (3D) ZnCl₂, resulting in the design of zero-dimensional (0D) [(4HP)₂ZnCl₂], with birefringence reaching 160 times the original value (0.482@546 nm).

Combining organometallic reagents with sulfurdiimide reagents, simple electrophiles, and then an electrophilic fluorine reagent provides a modular and scalable synthesis of sulfondiimidoyl fluorides. For the first time it is possible to prepare these unique functional groups with broad flexibility at the carbon and both imidic nitrogen atoms. SuFEx reactivity using amines and organolithium reagents is demonstrated, leading to sulfondiimidamide and sulfondiimine products.

5,18-Dimesitylorangarin and its BF₂ complex were synthesized as the first example of meso-aryl-substituted orangarins by double S_NAr reaction of 3,5-dibromo-BODIPY with 2-pyrrolydipyrrin. These orangarins are antiaromatic but stable. Remarkable oxidative self-coupling reactivities of the orangarin and its oligomers were demonstrated up to triply-COT-centered orangarin tetramers. COT-centered 3H-orangarin oligomers are oxidized to the corresponding 2H-orangarin oligomers, which show effective conjugation across the COT bridge. These directly linked orangarin oligomers show many reversible redox potentials owing to the intramolecular electronic interaction.

Unsymmetrical donor-thiazolothiazole-acceptor systems exhibit high solution state fluorescence quantum yield in polar organic solvents and water via intramolecular charge-transfer (ICT). Computational studies reveal that; i) thiazolothiazole bridge is non-innocent and can act as a donor or acceptor, and ii) the ICT is best captured by a fragment-based approach in which the change in charges between the excited and ground state is examined.

Wet spinning methods are used to 3D-print gel patterns based on low-molecular-weight gelators (LMWGs), with the chemical structure of the LMWG and its ability to generate AuNPs programming the conductivity of the printed pattern.

A new layer intercalatable electrolyte with effective water molecules bound was designed for proton batteries, achieving the low hydrogen production reaction potential and the promoted transfer kinetics of protons. An ultra-long stability for 2 months at −20 °C of full proton batteries was therefore delivered.

The polarization switching of the [Fe₂Co] with photocurrent output was realized via reversible light-induced ETCST. Routing the photocurrent through an integrator yields a stable square wave signal, effectively mimicking the switching of a ferroelectric memory from “0” to “1”. Specific crystal cells are exposed to 532 nm light for writing process, while reading was accomplished by scanning the units with 785 nm light.

The piezoelectric properties of self-assembled cyclic peptides derived from δ-amino acids have been investigated by exploring their macrodipole. The packing of the cyclic peptides, which show unidirectional hydrogen bonds was found to determine the piezoelectric properties.

Kunststoffe wie Polyurethane (PUs) und Polyamide (PAs) widerstehen weitgehend dem biologischen Abbau, was zur Entstehung von Abfall beiträgt. In diesem Artikel stellen wir die erste Kristallstruktur der metagenomischen Urethanase UMG-SP-1 vor. Durch anschließendes Engineering konnten wir Varianten mit einer bis zu 8-fach erhöhten Aktivität für verschiedene Urethane und Amide entwickeln. Darüber hinaus haben wir ein thermoplastisches Polyurethan (PU) und das Polyamid (PA) Nylon 6 teilweise abgebaut, was die Anwendbarkeit von UMG-SP-1 für den biologischen Abbau und das Recycling von PU- und PA-Abfällen unterstreicht.

Kaskadensynthese: Der Kupfer-Distickstoff-Komplex [(η¹-N₂)Cu{Al(OR^F)₄}] (R^F=C(CF₃)₃) mit einer beispiellos hohen N≡N-Streckschwingungsfrequenz von 2314 cm⁻¹ und einer positiven Ladung von +0.10 auf dem terminalen N-Atom wird vorgestellt. Dieser wurde durch eine dreifache Kaskadenreaktion aus Ag[Al(OR^F)₄] mit CuI-Überschuss synthetisiert, um reines Produkt ohne Ag⁺-Verunreinigung zu erhalten. [(η¹-N₂)Cu{Al(OR^F)₄}] wurde vollständig durch NMR-, Schwingungs- und EDX-Spektroskopie, sowie XRD und quantenchemische Analyse charakterisiert.

Reaktionen von stabilen Diazoalkenen mit Phosphaalkin (tBuCP) und weißem Phosphor (P₄) führen zu Diazamono- und Diazadiphospholen. Diese neuen Organophosphorverbindungen finden Anwendung in der Übergangsmetall- und Hauptgruppenchemie.