An iron germylene complex having Fe-H and Ge-H bonds: Synthesis, structure and reactivity

Tara Prasad Dhungana; Hisako Hashimoto; Hiromi Tobita

doi:10.1039/c7dt01159h

An iron germylene complex having Fe-H and Ge-H bonds: Synthesis, structure and reactivity

Tara Prasad Dhungana, Hisako Hashimoto, Hiromi Tobita

Tohoku University

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

A base-free iron germylene complex Cp∗(CO)(H)FeGeH{C(SiMe₃)₃} (1) was synthesised by abstraction of pyridine from a germyl complex Cp∗(CO)(py)FeGeH₂{C(SiMe₃)₃} (2), which was prepared by treatment of Cp∗Fe(CO)(py)(Me) with H₃GeC(SiMe₃)₃. X-ray crystallographic analysis revealed that 1 has an Fe-Ge bond that is the shortest among those ever reported. Reactivity of 1 toward several polar unsaturated organic compounds was investigated. Complex 1 underwent stoichiometric hydrogermylation of carbonyl compounds such as ketones, aldehydes and isocyanates (RNCO) at room temperature. In contrast, the reactions of 1 with isothiocyanates (RNCS) resulted in clean cleavage of the CS double bonds.

Original language	English
Pages (from-to)	8167-8179
Number of pages	13
Journal	Dalton Transactions
Volume	46
Issue number	25
DOIs	https://doi.org/10.1039/c7dt01159h
Publication status	Published - 2017

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title = "An iron germylene complex having Fe-H and Ge-H bonds: Synthesis, structure and reactivity",

abstract = "A base-free iron germylene complex Cp∗(CO)(H)FeGeH{C(SiMe3)3} (1) was synthesised by abstraction of pyridine from a germyl complex Cp∗(CO)(py)FeGeH2{C(SiMe3)3} (2), which was prepared by treatment of Cp∗Fe(CO)(py)(Me) with H3GeC(SiMe3)3. X-ray crystallographic analysis revealed that 1 has an Fe-Ge bond that is the shortest among those ever reported. Reactivity of 1 toward several polar unsaturated organic compounds was investigated. Complex 1 underwent stoichiometric hydrogermylation of carbonyl compounds such as ketones, aldehydes and isocyanates (RNCO) at room temperature. In contrast, the reactions of 1 with isothiocyanates (RNCS) resulted in clean cleavage of the CS double bonds.",

author = "Dhungana, {Tara Prasad} and Hisako Hashimoto and Hiromi Tobita",

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T1 - An iron germylene complex having Fe-H and Ge-H bonds

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AU - Dhungana, Tara Prasad

AU - Hashimoto, Hisako

AU - Tobita, Hiromi

PY - 2017

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AB - A base-free iron germylene complex Cp∗(CO)(H)FeGeH{C(SiMe3)3} (1) was synthesised by abstraction of pyridine from a germyl complex Cp∗(CO)(py)FeGeH2{C(SiMe3)3} (2), which was prepared by treatment of Cp∗Fe(CO)(py)(Me) with H3GeC(SiMe3)3. X-ray crystallographic analysis revealed that 1 has an Fe-Ge bond that is the shortest among those ever reported. Reactivity of 1 toward several polar unsaturated organic compounds was investigated. Complex 1 underwent stoichiometric hydrogermylation of carbonyl compounds such as ketones, aldehydes and isocyanates (RNCO) at room temperature. In contrast, the reactions of 1 with isothiocyanates (RNCS) resulted in clean cleavage of the CS double bonds.

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An iron germylene complex having Fe-H and Ge-H bonds: Synthesis, structure and reactivity

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