Silanylidene and Germanylidene Anions: Valence‐Isoelectronic Species to the Well‐Studied Phosphinidene. Issue 36 (6th August 2018)

• Record Type: Journal Article
• 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.
• Is Part Of: Angewandte Chemie international edition. Volume 57:Issue 36(2018)
• Page Start: 11776
• Page End: 11780
• Publication Date: 2018-08-06
• Subjects: anions -- cyclic alkyl(amino) carbenes -- germanylidene -- phosphinidene -- silanylidene; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201805936
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: 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. Compounds1 and2 were isolated and well characterized by NMR and single‐crystal X‐ray structure analysis. Furthermore, the structure and bonding of compounds1 and2 was investigated by computational methods. Abstract : Acyclic group 14 anions : Silanylidene and germanylidene potassium salts stabilized by a cyclic alkyl(amino) carbene (cAAC), [(cAAC)KMTip]2 (M=Si, 1 ; Ge, 2 ), have been synthesized. These anions are isoelectronic to the well‐studied phosphinidene. The structure and bonding of compounds1 and2 have been investigated by experimental and theoretical methods.