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Title: Formal Nickelate(−I) Complexes Supported by Group 13 Ions

Journal Article · · Angewandte Chemie

Abstract Formal nickelate(−I) complexes bearing Group 13 metalloligands (M=Al and Ga) were isolated. These 17 e complexes were synthesized by one‐electron reduction of the corresponding Ni 0 →M III precursors, and were investigated by single‐crystal X‐ray diffraction, EPR spectroscopy, and quantum chemical calculations. Collectively, the experimental and computational data support: 1) the strengthening of the Ni−M bond upon one‐electron reduction, and 2) the delocalization of the unpaired spin across the Ni and M atoms. An intriguing electronic configuration is revealed where three valence electrons occupy two σ‐type bonding interactions: Ni(3d ) 2 →M and σ‐(Ni−M) 1 . The latter is an unusual Ni−M σ‐bonding molecular orbital that comprises primarily the Ni 4p z and M np z /ns atomic orbitals.

Sponsoring Organization:
USDOE
OSTI ID:
1439264
Journal Information:
Angewandte Chemie, Journal Name: Angewandte Chemie Vol. 130 Journal Issue: 26; ISSN 0044-8249
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English

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