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  • Electron transfer  (1)
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  • 1960-1964
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    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 128 (1997), S. 337-351 
    ISSN: 1434-4475
    Keywords: Vanadium ; Thallium ; Heterobimetallic ; 2-(Dimethylaminomethyl)ferrocenyl ; Orthometallation ; Electron transfer ; Möβbauer spectroscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary Syntheses and properties of 2-(dimethylaminomethyl)ferrocenylderivatives of the composition (FcN) n VCl3−n (FcN=2-(dimethylaminomethyl)ferrocenyl;n=1 (1), 2 (2), 3 (3)), which are formed from VCl3·3THF and (FcN) Li (I), are reported. WhereasCp 2VCl2 (Cp=C5H5) reacts withI under formation ofCp 2V(FcN) (4), VO(acac)2 (acac=anion of acetylacetonate, C5H7O2) can be transformed into the 2-(dimethylaminomethyl)-ferrocenyl compound of tetravalent vanadium (FcN)VO(acac),5). However, when VOCl2·2THF reacts withI, the organovanadium(III)-derivative Li[(FcN)2V(O)Cl] (6) is formed. Reactions of VCl4·2THF,Cp 2VCl2, VOCl3, andCpVOCl2 with (FcN)3Tl (II) lead to thermally instable vanadiumorganic compounds under formation of (FcN)2TlCl (7). A detailed characterization of1–7 was carried out by elementary analysis, determination of effective magnetic moments, IR, mass and1H NMR spectroscopy as well as — especially referring to the formation of possible chelate structures — by UV/Vis andMöβbauer spectroscopy.
    Notes: Zusammenfassung Synthesen und Eigenschaften von 2-(Dimethylaminomethyl)ferrocenyl-Derivaten der Formel (FcN) n VCl3−n (FcN=2-(Dimethylaminomethyl)ferrocenyl;n=1 (1), 2 (2), 3 (3)), die aus VCl3·3THF und (FcN) Li (I) entstehen, werden mitgeteilt. WährendCp 2VCl2 (Cp=C5H5) mitI unter Bildung vonCp 2 V(FcN) (4) reagiert, läßt sich VO (acac)2 (acac=Anion des Acetylacetonates, C5H7O2) in die 2-(Dimethylaminomethyl)ferrocenyl-Verbindung des vierwertigen Vanadiums (FcN)VO(acac),5) überführen. Dagegen entsteht bei Umsetzungen von VOCl2·2THF mitI das Organovanadium (III)-Derivat Li [(FcN)2V(O)Cl] (6). Reaktionen von VCl4·2THF,Cp 2VCl2, VOCl3 undCpVOCl2 mit (FcN)3Tl (II) führen unter Bildung von (FcN)2TlCl (7) zu thermisch instabilen vanadiumorganischen Verbindungen. Eine eingehende Charakterisierung von1–7 erfolgte durch Elementaranalysen, Ermittlung der effektiven magnetischen Momente, IR-, Massen- und NMR-Spektroskopie sowie, insbesondere hinsichtlich der Ausbildung möglicher Chelatstrukturen, durch UV/Vis und Mößbauer-Spektroskopie.
    Type of Medium: Electronic Resource
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