Silanylidene and Germanylidene Anions: Valence‐Isoelectronic Species to the Well‐Studied Phosphinidene

The reduction of TipMCl3 (Tip=2,4,6‐triisopropylphenyl) (M=Si, Ge) with KC8 in the presence of cyclic alkyl(amino) carbene (cAAC) afforded the acyclic silanylidene and germanylidene anions in the form of potassium salt [K(cAAC)MTip]2 (M=Si (1); Ge (2)). The silanylidene and germanylidene anions are...

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Bibliographic Details
Published in:Angewandte Chemie 2018-09, Vol.130 (36), p.11950-11954
Main Authors: Siddiqui, Mujahuddin M., Sinhababu, Soumen, Dutta, Sayan, Kundu, Subrata, Ruth, Paul Niklas, Münch, Annika, Herbst‐Irmer, Regine, Stalke, Dietmar, Koley, Debasis, Roesky, Herbert W.
Format: Article
Language:English
Subjects:
Anionen
Anions
Chemical bonds
Chemistry
Computer applications
Crystal structure
Cyclische Alkyl(amino)carbene
Germanium
Germanylidene
NMR
Nuclear magnetic resonance
Phosphinidene
Potassium
Potassium salts
Silanylidene
Silicon
Structural analysis
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Summary:The reduction of TipMCl3 (Tip=2,4,6‐triisopropylphenyl) (M=Si, Ge) with KC8 in the presence of cyclic alkyl(amino) carbene (cAAC) afforded the acyclic silanylidene and germanylidene anions in the form of potassium salt [K(cAAC)MTip]2 (M=Si (1); Ge (2)). The silanylidene and germanylidene anions are valence‐isoelectronic to the well‐studied phosphinidene and are a new class of acyclic anions of Group 14. Compounds 1 and 2 were isolated and well characterized by NMR and single‐crystal X‐ray structure analysis. Furthermore, the structure and bonding of compounds 1 and 2 was investigated by computational methods. Acyclische Gruppe‐14‐Anionen: Kaliumsalze von Silanylidenen und Germanylidenen, [(cAAC)KMTip]2 (1 bzw. 2), stabilisiert durch ein cyclisches Alkyl(amino)carben (cAAC), wurden synthetisiert. Diese Anionen sind isoelektronisch zu den gut untersuchten Phosphinidenen. Struktur und Bindungsverhältnisse in 1 und 2 wurden experimentell und theoretisch studiert.
ISSN:0044-8249
1521-3757
DOI:10.1002/ange.201805936