A Molecular Complex with a Formally Neutral Iron-germanide Motif (Fe2Ge2)

Title: A Molecular Complex with a Formally Neutral Iron-germanide Motif (Fe2Ge2)
Author(s): Rzepa, HS
Scheschkewitz, D
Huch, V
Jana, A
Item Type: Dataset
Abstract: We report the synthesis and isolation of a stable complex containing the formally neutral Fe2Ge2 motif, which is stabilized by the coordination of an N-heterocyclic carbene to the germanium and carbon monoxide to the iron center. [(NHCiPr2Me2)GeFe(CO)4]2 is obtained by reduction of the NHCiPr2Me2-coordinated dichlorogermylene adduct with Fe(CO)4, which in turn is obtained from reaction of Fe2(CO)9 with GeCl2·NHCiPr2Me2 (NHCiPr2Me2 = 1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene). The solid state structure of the title compound reveals two distinct coordination modes for the Fe(CO)4 fragments: bridging (p-type) and terminal (s-type). In solution, the rapid equilibrium between the two modes was resolved by NMR at −35°C. Reaction with propylene sulfide at room-temperature affords the sulfide-bridged digermanium complex with two terminal Fe(CO)4 moieties.
We report the synthesis and isolation of a stable complex containing the formally neutral Fe2Ge2 motif, which is stabilized by the coordination of an N-heterocyclic carbene to the germanium and carbon monoxide to the iron center. [(NHCiPr2Me2)GeFe(CO)4]2 is obtained by reduction of the NHCiPr2Me2-coordinated dichlorogermylene adduct with Fe(CO)4, which in turn is obtained from reaction of Fe2(CO)9 with GeCl2·NHCiPr2Me2 (NHCiPr2Me2 = 1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene). The solid state structure of the title compound reveals two distinct coordination modes for the Fe(CO)4 fragments: bridging (p-type) and terminal (s-type). In solution, the rapid equilibrium between the two modes was resolved by NMR at −35°C. Reaction with propylene sulfide at room-temperature affords the sulfide-bridged digermanium complex with two terminal Fe(CO)4 moieties.
We report the synthesis and isolation of a stable complex containing the formally neutral Fe2Ge2 motif, which is stabilized by the coordination of an N-heterocyclic carbene to the germanium and carbon monoxide to the iron center. [(NHCiPr2Me2)GeFe(CO)4]2 is obtained by reduction of the NHCiPr2Me2-coordinated dichlorogermylene adduct with Fe(CO)4, which in turn is obtained from reaction of Fe2(CO)9 with GeCl2·NHCiPr2Me2 (NHCiPr2Me2 = 1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene). The solid state structure of the title compound reveals two distinct coordination modes for the Fe(CO)4 fragments: bridging (p-type) and terminal (s-type). In solution, the rapid equilibrium between the two modes was resolved by NMR at −35°C. Reaction with propylene sulfide at room-temperature affords the sulfide-bridged digermanium complex with two terminal Fe(CO)4 moieties.
Publication Date: 16-Oct-2014
URI: http://hdl.handle.net/10044/1/30293
DOI: http://dx.doi.org/10.6084/m9.figshare.1206310
Keywords: Iron germanide
Computational Chemistry
Inorganic Chemistry
Iron germanide
Computational Chemistry
Inorganic Chemistry
Appears in Collections:Faculty of Natural Sciences - Research Data



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