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Novel Alkynylcopper(I) Complexes and Lithium Alkynyl Cuprates†
Dr. Falk Olbrich,
Priv. Doz. Dr. Jürgen Kopf,
Prof. Dr. Erwin Weiss,
Dr. Falk Olbrich
Institut für Anorganische und Angewandte Chemie der Universität, Martin-Luther-King-Platz 6, D-20146 Hamburg (FRG)
Search for more papers by this authorPriv. Doz. Dr. Jürgen Kopf
Institut für Anorganische und Angewandte Chemie der Universität, Martin-Luther-King-Platz 6, D-20146 Hamburg (FRG)
Search for more papers by this authorCorresponding Author
Prof. Dr. Erwin Weiss
Institut für Anorganische und Angewandte Chemie der Universität, Martin-Luther-King-Platz 6, D-20146 Hamburg (FRG)
Institut für Anorganische und Angewandte Chemie der Universität, Martin-Luther-King-Platz 6, D-20146 Hamburg (FRG)Search for more papers by this authorDr. Falk Olbrich,
Priv. Doz. Dr. Jürgen Kopf,
Prof. Dr. Erwin Weiss,
Dr. Falk Olbrich
Institut für Anorganische und Angewandte Chemie der Universität, Martin-Luther-King-Platz 6, D-20146 Hamburg (FRG)
Search for more papers by this authorPriv. Doz. Dr. Jürgen Kopf
Institut für Anorganische und Angewandte Chemie der Universität, Martin-Luther-King-Platz 6, D-20146 Hamburg (FRG)
Search for more papers by this authorCorresponding Author
Prof. Dr. Erwin Weiss
Institut für Anorganische und Angewandte Chemie der Universität, Martin-Luther-King-Platz 6, D-20146 Hamburg (FRG)
Institut für Anorganische und Angewandte Chemie der Universität, Martin-Luther-King-Platz 6, D-20146 Hamburg (FRG)Search for more papers by this author†
On Metal–;Alkyl and Metal-Aryl Complexes, Part 48. This work was supported by the Fonds der Chemischen Industie. Part 47: S. Corbelin, N. P. Lorenzen, J. Kopf, E. Weiss, J. Organomet. Chem. 1991, 415, 293.
Graphical Abstract
A tetrahedral tetraalkynylcuprate—a new structural unit for organocopper compounds—and a “crown” formed from three Li[PhCCCuCCPh] units (A) are contained in the first lithium alkynylcuprate 1. This complex was prepared from copper(I) bromide dimethylsulfide and LiCCPh.
References
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J. G. Noltes,
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10.1016/B978-008046518-0.00022-2 Google Scholar
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- 8 Crystal structure analysis of tetracosa[(tert-butylethynyl)copper(I)].2 n hexane (1): single crystals from n-hexane by slow cooling to 7°C and concentration of the solution. C144H216Cu24, dot; C12H28, triclinic, P1, Z = 1, a = 1419.1(2), b = 1526.3(2), c = 2228.4(5) pm, α = 104.80;(2), β = 91.03(2), γ = 117.32(2)°, V = 4094(2) × 106 pm3, ρcalcd = 1.478 gcm−3, μ = 35.1 cm−1 (absorption correction), crystal size 0.20 × 0.25 × 0.27 mm3, CuKα, Enraf Nonius CAD4 diffractometer, temperature 173 K, range 2.25° < θ < 76.5°, 13295 significant reflections (|F|) > 4σ(|F|), structure solution with direct methods (SHELXS, G. Sheldrick, Göttingen, 1986), 869 refined parameters, R = 0.047, Rw = 0.061 ([σ2 (F) + 0.0002 F2]−1, all non-hydrogen atoms refined with anisotropic temperature factors. In the asymmetric unit {(CuC-CtBu)12.n-hexane} the site of a tert-butylethynyl ligand (C90-C95) has 15% bromide occupancy (Br90). The hexane molecule is disordered. Drawing: E. Kelley, SCHAKAL 88, Freiburg, 1988).
- 9 Further details of the crystal structure investigation may be obtained from the Fachinformationszentrum Karlsruhe, Gesellschaft für wissenschaftlich-technische Information mbH, D-76344 Eggenstein-Leopoldshafen (FRG) on quoting the depository number CSD-56987, the names of the authors, and the journal citation.
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- 19 Crystal structure analysis of tris(diethyl ether)hexalithium deca(phenylethynyl)tetracuprate(i) (3) : single crystals from benzene. C92H80Cu4Li6O3, monoclinic, P21/c, Z = 4, a = 1763.6(3), b = 1938.3(3), c = 2308.4(3) pm, β = 91.34(1)°, V = 7889.2(2) × 106 pm3, ρcalcd = 1.288 gcm−3, μ = 15.4 cm−1, crystal size 0.30 × 0.20 × 0.05 mm3, CuKα, Enraf-Nonius CAD4 diffractometer, temperature 173 K, range 2.25° < θ < 60.0°, 7471 significant reflections (|F| < 3σ(|F|)), direct methods, 1105 refined parameters, R = 0.089, Rw = 0.090 ([σ2 (F)) + 0.001 F2]−1, all non-hydrogen atoms refined with anisotropic temperature factors.
- 20 U. Schümann, E. Weiss, Angew. Chem. 1988, 100, 573; Angew. Chem. Int. Ed. Engl. 1988, 27, 584.
