ISSN:
0044-2313
Keywords:
Organotransition metal chemistry
;
heterobimetallic 2-(dimethylaminomethyl)ferrocenyl derivatives of vanadium, niobium, tantalum
;
synthesis
;
1H-n.m.r.-, uv-vis spectra
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
On 2-(Dimethylaminomethyl)ferrocenyl Compounds of Vanadium, Niobium, and TantalumFormer results, indicating the ability of (dimethylaminomethyl)ferrocenyl groups forming stable σ-organo transition-metal derivatives, were proved by the synthesis of heterobimetallic 2-(dimethylaminomethyl)ferrocenyl compounds of the three-valued vanadium as well as five valued niobium and tantalum from VCl3, NbCl5, TaCl5, and (FcN)Li (I).The synthesis and properties of the compounds (FcN)2VCl (II), (FcN)nNbCl5-n(THF)x [n = 1, x = 1,3 (III); n = 2, x = 0 (IV); n = 3, x = 0 (V)] as well as (FcN)TaCl4(THF)1.5 (VI) are reported. An intensive characterization, especially in respect of possible chelate structures was tried by i.r., 1H-n.m.r., uv-vis, mass spectroscopy, and elementary analysis.
Notes:
Frühere Befunde, wonach (Dimethylaminomethyl)-ferrocenyl-Gruppen (FcN) zur Bildung stabiler σ-Organoübergangsmetall-Derivate befähigt sind, wurden durch die Synthese heterobimetallischer 2-(Dimethylaminomethyl)-ferrocenyl-Verbindungen des dreiwertigen Vanadiums sowie des fünfwertigen Niobs und Tantals aus den Metallchloriden VCl3, MCl5 (M = Nb, Ta) und (FcN)Li (I) bestätigt. Die Darstellung und die Eigenschaften der Verbindungen (FcN)2VCl (II), (FcN)nNbCl5-n(THF)x [n = 1, x = 1,3 (III); n = 2, x = 0 (IV); n = 3, x = 0 (V)] sowie von (FcN)TaCl4 · 1,5 THF (VI) werden mitgeteilt. Eine eingehende Charakterisierung, insbesondere hinsichtlich der Ausbildung möglicher Chelatstrukturen, erfolgte durch IR-, 1H-NMR-, UV-VIS- und Massenspektroskopie sowie durch Elementaranalysen.
Additional Material:
5 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19946200829
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