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Studies on the Reactivity of [Ge 9 ] 4− towards [Fe(cot)(CO) 3 ]: Synthesis and Characterization of [Ge 8 Fe(CO) 3 ] 3− and of the Anionic Organometallic Species [Fe(cot)(CO) 3 ] −
Author(s) -
Zhou Binbin,
Goicoechea Jose M.
Publication year - 2010
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201000507
Subject(s) - chemistry , crystallography , germanium , reactivity (psychology) , electron paramagnetic resonance , ethylenediamine , ion , transition metal , cluster (spacecraft) , inorganic chemistry , silicon , medicine , physics , alternative medicine , organic chemistry , pathology , nuclear magnetic resonance , computer science , programming language , catalysis , biochemistry
Reaction of cyclooctatetraene (COT) iron(II) tricarbonyl, [Fe(cot)(CO) 3 ], with one equivalent of K 4 Ge 9 in ethylenediamine (en) yielded the cluster anion [Ge 8 Fe(CO) 3 ] 3− which was crystallographically‐characterized as a [K(2,2,2‐crypt)] + salt in [K(2,2,2‐crypt)] 3 [Ge 8 Fe(CO) 3 ]. The chemically‐reduced organometallic species [Fe(η 3 ‐C 8 H 8 )(CO) 3 ] − was also isolated as a side‐product from this reaction as [K(2,2,2‐crypt)][Fe(η 3 ‐C 8 H 8 )(CO) 3 ]. Both species were further characterized by EPR and IR spectroscopy and electrospray mass spectrometry. The [Ge 8 Fe(CO) 3 ] 3− cluster anion represents an unprecedented functionalized germanium Zintl anion in which the nine‐atom precursor cluster has lost a vertex, which has been replaced by a transition‐metal moiety.