ISSN:
0009-2940
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Reaction of Azidometal Compounds with Isocyanides: Tetrazolato Complexes with Metal-Carbon BondsThe azido complexes As(C6H5)4[Au(N3)4], As(C6H5)4[Au(N3)2], (C6H5)3PAuN3 and [(C6H5)3P]2M(N3)2 (M=Pd, Pt, Hg) react with isocyanides under very mild conditions to give the tetrazolato complexes As(C6H5)4[Au(CN4R)4] (R=CH3, i-C3H7, c-C6H11, CH2C6H5, C6H5, p-CH3O—C6H4), As(C6H5)4[Au(CN4CH3)2], CH3NCAuCN4CH3, (CH3NC)2Pt-(CN4CH3)2, [(C6H5)3P](RNC)M(CN4R)2 (M=Pd, Pt; R=c-C6H11, C6H5) and Hg(CN4CH3)2, respectively. 1H n.m.r. and i.r. spectra as well as acid hydrolysis yielding free 1-substituted tetrazole indicate that in these thermally and chemically stable compounds the tetrazolyl ligands are bonded via C-5 to the metal.
Notes:
Die Tetrazolato-Komplexe As(C6H5)4[Au(CN4R)4] (R=CH3, i-C3H7, c-C6H11, CH2C6H5, C6H5, p-CH3O—C6H4), As(C6H5)4[Au(CN4CH3)2], CH3NCAuCN4CH3, (CH3NC)2Pt- (CN4CH3)2, [(C6H5)3P](RNC)M(CN4R)2 (M=Pd, Pt; R=c-C6H11, C6H5) und Hg(CN4CH3)2 entstehen durch Umsetzung der Azidoverbindungen As(C6H5)4[Au(N3)4], As(C6H5)4[Au(N3)2], (C6H5)3PAuN3 und [(C6H5)3P]2M(N3)2 (M=Pd, Pt, Hg) mit Isonitrilen unter sehr milden Bedingungen (20°). 1H-NMR-und IR-Spektren sowie die Spaltung mit HCl, die zum freien 1-substituierten Tetrazol führt, beweisen das Vorliegen von Metall-Kohlenstoff-σ-gebundenen Tetrazolyl-Liganden in diesen thermisch und chemisch überraschend stabilen Komplexen.
Additional Material:
3 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19711040617
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