The intercalation of avermectin (AVM) into sodium dodecyl sulfate (SDS) modified hydrotalcite-like compounds (HTlc) was carried out using an evaporating solvent enhanced intercalation method to obtain AVM-SDS-HTlc nanohybrids. It was found that the nanohybrids could well control the release of avermectin, showing that the nanohybrids are a potential pesticide controlled-release formulation.

Kinetics and mechanism of oxidation of 1,4-butanediamine by Ag(III) complex was studied spectrophotometrically in alkaline medium at constant ion strength.

Based on the optimized geometrical results at the B3LYP/6-31G∗︁ level, the IR spectra, thermodynamic properties, as well as ¹³C and ¹H NMR chemical shifts for a series of polynitro-1,3-bis-homopenta-prismanes have been calculated and discussed.

The enhanced hydrophobic interaction between the alkyl tails and the spacer chain can effectively induce the bending of the flexible alkylene spacer toward the air-side.

This work shows that the diffusion pathway of hexane was largely influenced by loading.

A new copper(II) tetrazolate coordination polymer [Cu(pzta)₂]_n (1) (pzta=5-pyrazinyltetrazolate) was prepared from the hydrothermal reaction of Cu(OAc)₂·H₂O with NaN₃ and pyrazinecarbonitrile (pzCN) in the presence of ethanol, and characterized by elemental analysis, IR, TGA and X-ray crystallography. The X-ray diffraction analysis of 1 shows that the compound crystallizes in the monoclinic system with space group P2(1)/c and Cu(II) ion center is six-coordinated by four different pzta ligands. The complex 1 features a 2D tetrazole coordination polymer. The thermal analysis of 1 shows that the decomposition of the complex occurs in two regions.

The outcomes of TG curves concerning the flame-retarded supported samples show the similar three stages but with lower decomposition temperatures and mass. The figure also demonstrates TG curve of the flame-retarded cotton fiber and the combined curves respectively. It is obvious that the decomposition temperature of the treated cotton substrate with Sb₂O₃ is higher compared with untreated one, indicating no influence occurred by using it as a dehydrating agent. Note that both ammonium bromide and its synergy with antimony(III) oxide illustrated a significant role as a dehydrating agent to catalyze the dehydration of the cellulosic substrate, since they lowered the dehydrating temperature around 300 °C.

All components of Co(en)₃³⁺, [B₄O₅(OH)₄]²⁻, Cl⁻ and H₂O for Co(en)₃- [B₄O₅(OH)₄]Cl·3H₂O are linked together to form a 3D supramolecular network through four kinds of hydrogen bonds, O–H···O, O–H···Cl, N–H···Cl and N–H···O and the three crystalline water molecules form a zigzag water-chain through O–H···O.

A new 3D supramolecular framework [Co(µ₂-ClO₄)₂(H₂O)₂]·2MA linked by hydrogen bonding and π-π interactions is reported.

Adsorption of nitrogen, hydrogen and methane in square and rectangular nanopores of various sizes has been studied by grand canonical Monte Carlo simulations (GCMC). By comparison of three kinds of potential models, it was found that the site-site model was more rational, which was therefore used in the work. Adsorption behavior of fluids in square, rectangular and cylindrical pores at T=77 K was compared. Prewetting was found in the corners of the square and rectangular pores, which is absent in the cylindrical pores. Adsorption of hydrogen and methane in the three kinds of pores was compared. Among them, the adsorption uptake of hydrogen in the square pore is highest, especially at low pressures, because the effect of potential superposition in the "corners" makes an important contribution to hydrogen adsorption. The results indicate that the presence of corners has a profound effect upon the adsorption and phase behavior of fluids at low pressures.

The fluorescence intensity of the pheophytin-a acetone solution decreases linearly with the copper(II) ion concentration in the µmol·dm⁻³ range.

In the presence of SCN⁻, Cu(II) was reduced to Cu(I) by isoniazid. The resulting Cu(I) reacted with SCN⁻ to develop white emulsion precipitate CuSCN, which was floated on the surface of water when NaNO₃ was added into the solution. By determining the amount of residual Cu(II) in the water phase, the amount of isoniazid could be obtained.

3′ FAM-labeled oligonucleotides were immobilized on the gold nanoparticles via 5′-SH. Specific hybridization with the complementary target makes the probe sequence bend to form an arch-like structure. The fluorophore and gold nanoparticles are brought in close proximity, resulting in fluorescence quenching.

The thermodynamics and extra-thermo- dynamics of Bacillus subtilis α-amylase in some chromatographic systems were studied. It was found that their adsorption procedures were driven by both of the enthalpy change and the entropy change on some chromatographic media, while on some other chromatographic media, their adsorption procedures were driven only by the entropy change; and for α-amylases on a RP-C₁₈ reversed-phase medium (⋄), a Zn-chelated Sepharose fast-flow affinity medium (□), a WCX-1 cation-exchange media (Δ), a PEG-400 hydrophobic medium (◯) and a modified PEG-400 medium (∗︁), their enthalpy-entropy compensation relationships lay on the same straight-line and their enthalpy changes could be compensated only with their entropy changes rising from their conformational change.

The concentration of every component in the mixture can be obtained by using artificial neural networks and partial least squares to carry out analysis on absorption spectra of the mixture.

Microcalorimetric was used to analyze the toxic action of Pb²⁺ on the metabolic activities. Pb²⁺ has a stimulating effect on Candida humicola and Bacillus subtilis growth at low concentration and an inhibitory influence at high concentration. This investigation aims at evaluating the toxic action of Pb(II) on the Candida humicola and Bacillus subtilis by microcalorimetric technique.

A three-dimensional pharmacophore model was developed based on 24 currently available hydroxamate histone deacetylase inhibitors in Catalyst software package.

A series of novel thiophosphoryl oximates containing thiazole and 1,2,3-triazole rings 4 were synthesized by the reactions of 1-{1-[(2-chlorothiazol-5-yl)methyl]-5-methyl-1H-1,2,3-triazol-4-yl}ethanone oxime with various asymmetric thiophosphoryl chlorides. The results of preliminary bioassay indicate that some of the title compounds possess moderate insecticidal and fungicidal activities

A simple, clean and environmentally benign route to the synthesis of 3-cyanopyridines is described via a one-pot multi-component reaction of 3,4-dimethoxyacetophenone, malonitrile or ethylcyanoacetate, aldehyde and ammonium acetate using heteropolyacids as heterogeneous and recyclable catalysts in very good yields.

A novel series of anthranilic acid esters containing N-pyridylpyrazole were designed and synthesized. Their structures were determined by IR ¹H NMR, MS and elemental analysis, and their insecticidal activities against Mythimna separata Walker and Culex pipiens pallens were tested.

In ionic liquid [bmim][PF₆]-H₂O, a highly chemoselective oxidation of benzylic alcohols in the presence of aliphatic ones to the corresponding hydroxyl benzyl aldehydes and ketones was allowed in high yields using a facile and effective catalytic oxidation system NCS/NaBr/IL-TEMPO (ionic liquid immobilized TEMPO). The medium, [bmim][PF₆], together with the catalyst IL-TEMPO could be easily recycled for ten runs without any influence on the efficacy of the reaction in terms of yield and selectivity of the product.

Some novel chiral thiourea derivatives have been synthesized in high yield in ionic liquid [Bmim]PF₆. The preliminary bioassay showed that some of the chiral thiourea analogues exhibited moderate in vivo antiviral activities against TMV at a concentration of 500 mg/L.

Hydrothermal in situ reaction of 4-nitrobenzonitrile, ammonia and Cu(II) salts yielded complex bis[2,4-di(p-nitrophenyl)-1,3,5-triazapentadienato]Cu(II). DFT calculation shows that nitrobenzonitrile as the starting material benefits for the thermodynamic stabilization of the target.

A mild, simple, and high yielding procedure for the direct conversion of oximes to nitriles has been developed using heteropolyacid in acetic acid. Aromatic and aliphatic aldoximes were converted to the corresponding nitriles in the presence of Preyssler type heteropolyacid, which could be reused several times without any appreciable loss of activity.