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N-Heterocyclic germylenes and stannylenes of the type [Fe{(η5-C5H4)NR}2E] with bulky alkyl substituents

N-Heterocyclic germylenes and stannylenes of the type [Fe{(η5-C5H4)NR}2E] with bulky alkyl... AbstractThe 1,1′-diaminoferrocene derivatives [Fe(η5-C5H4–NHAd)2] (Ad=2-adamantyl) and [Fe(η5-C5H4–NHtBu)2] were investigated in terms of their suitability for the synthesis of N-heterocyclic tetrylenes of the type [{Fe(η5-C5H4–NR)2}E] (E=Ge, Sn). The synthesis of these target compounds was easily achieved with R=tBu, but failed with R=Ad. In the latter case, the stannylene was not sufficiently stable for isolation and decomposed to the aminoiminoferrocene derivative [Fe(η5-C5H4–NHAd)(η5-C5H4–N=Ad′)] (Ad′=adamant-2-ylidene). Attempts to synthesise [{Fe(η5-C5H4–NAd)2}Ge] afforded intractable material, from which the unusual compound [μ2-{Fe(η5-C5H4–NAd)2}Ge2(μ3-O)(GeCl2)] was obtained by serendipity. It contains GeO, stabilised by adduct formation with GeCl2 and the target germylene. [Fe(η5-C5H4–NHtBu)2], [Fe(η5-C5H4–NHAd)2], [Fe(η5-C5H4–NHAd)(η5-C5H4–N=Ad′)], [μ2-{Fe(η5-C5H4–NAd)2}Ge2(μ3-O)(GeCl2)] and [{Fe(η5-C5H4–NtBu)2}E] (E=Ge, Sn) were structurally characterised by single-crystal X-ray diffraction. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Zeitschrift für Naturforschung B de Gruyter

N-Heterocyclic germylenes and stannylenes of the type [Fe{(η5-C5H4)NR}2E] with bulky alkyl substituents

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Publisher
de Gruyter
Copyright
©2017 Walter de Gruyter GmbH, Berlin/Boston
ISSN
0932-0776
eISSN
1865-7117
DOI
10.1515/znb-2017-0085
Publisher site
See Article on Publisher Site

Abstract

AbstractThe 1,1′-diaminoferrocene derivatives [Fe(η5-C5H4–NHAd)2] (Ad=2-adamantyl) and [Fe(η5-C5H4–NHtBu)2] were investigated in terms of their suitability for the synthesis of N-heterocyclic tetrylenes of the type [{Fe(η5-C5H4–NR)2}E] (E=Ge, Sn). The synthesis of these target compounds was easily achieved with R=tBu, but failed with R=Ad. In the latter case, the stannylene was not sufficiently stable for isolation and decomposed to the aminoiminoferrocene derivative [Fe(η5-C5H4–NHAd)(η5-C5H4–N=Ad′)] (Ad′=adamant-2-ylidene). Attempts to synthesise [{Fe(η5-C5H4–NAd)2}Ge] afforded intractable material, from which the unusual compound [μ2-{Fe(η5-C5H4–NAd)2}Ge2(μ3-O)(GeCl2)] was obtained by serendipity. It contains GeO, stabilised by adduct formation with GeCl2 and the target germylene. [Fe(η5-C5H4–NHtBu)2], [Fe(η5-C5H4–NHAd)2], [Fe(η5-C5H4–NHAd)(η5-C5H4–N=Ad′)], [μ2-{Fe(η5-C5H4–NAd)2}Ge2(μ3-O)(GeCl2)] and [{Fe(η5-C5H4–NtBu)2}E] (E=Ge, Sn) were structurally characterised by single-crystal X-ray diffraction.

Journal

Zeitschrift für Naturforschung B – de Gruyter

Published: Nov 27, 2017

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