ISSN:
0009-2940
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
New Metallacycles of Titanocene, Zirconocene, and Hafnocene Systems with S,N- and N,N′-Coordinated Chelate LigandsBy reaction of metallocene dichlorides of subgroup IV M(η5-C5H4R)2Cl2 (R=H: M=Ti, 1a; Zr, 1b; Hf, 1c. R=CH3: M=Ti, 1d) with equivalent amounts of the S,N- or N,N′-dilithium salts of o-aminothiophenol or o-phenylenediamine, respectively, M(η5-C5H4R)2(SC6H4NH) (R=H: M=Ti, 2a; Zr, 2b; Hf, 2c. R=CH3: M=Ti, 2d) and M(η5-C5H5)2(NHC6H4NH) (M=Ti, 3a; Zr, 3b; Hf, 3c) can be prepared as chelate complexes. The structure of the complexes 2a-d with five-membered MSC2N chelate rings is discussed on the basis of their temperature-variable 1H NMR spectra. The fragmentation of the chelates 2a-d and 3a-c is observed in the mass spectra.
Notes:
Durch Reaktion von Metallocen-dichloriden der IV. Nebengruppe M(η5-C5H4R)2Cl2 (R=H: M=Ti, 1a; Zr, 1b; Hf, 1c. R=CH3: M=Ti, 1d mit äquimolaren Mengen der S,N-bzw. N,N′-Dilithium-Salze des o-Aminothiophenols oder o-Phenylendiamins können die Chelat-Komplexe M(η5-C5H4R)2(SC6H4NH) (R=H: M=Ti, 2a; Zr, 2b; Hf, 2c. R=CH3: M=Ti, 2d) und M(η5-C5H5)2(NHC6H4NH) (M=Ti, 3a; Zr, 3b; Hf, 3c) dargestellt werden. Die Struktur der Komplexe 2a-d mit fünfgliedrigen MSC2N-Chelatringen wird anhand ihrer temperaturvariablen 1H-NMR-Spektren diskutiert. Die Fragmentierung der Chelate 2a-d und 3a-c im Massenspektrum wird untersucht.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19861190619
