Amidinato germylene-zinc complexes: synthesis, bonding, and reactivity

TitleAmidinato germylene-zinc complexes: synthesis, bonding, and reactivity
Publication TypeJournal Article
Year of Publication2020
AuthorsYadav, S, Kumar, R, K. Raj, V, Yadav, P, Vanka, K, Sen, SS
JournalChemistry-An Asian Journal
Volume15
Issue19
Pagination3116-3121
Date PublishedOCT
Type of ArticleArticle
ISSN1861-4728
KeywordsDFT, Germathione, Germylene, X-ray Structure, zinc
Abstract

Despite the explosive growth of germylene compounds as ligands in transition metal complexes, there is a modicum of precedence for the germylene zinc complexes. In this work, the synthesis and characterization of new germylene zinc complexes [PhC(NtBu)(2)Ge{N(SiMe3)(2)}-> ZnX2](2)(X= Br (2) and I (3)) supported by (benz)-amidinato germylene ligands are reported. The solid-state structures of2and3have been validated by single-crystal X-ray diffraction studies, which revealed the dimeric nature of the complexes, with distorted tetrahedral geometries around the Ge and Zn center. DFT calculations reveal that the Ge-Zn bonds in2and3are dative in nature. The reaction of2with elemental sulfur resulted in the first structurally characterized germathione stabilized ZnBr(2)complexes PhC(NtBu)(2)Ge(=S){N(SiMe3)(2)}-> ZnBr2(5). Therefore, the Ge=S in5is in-between Ge-S single and Ge=S double bond length, owing to the coordination of a sulfur lone pair of electrons to ZnBr2.

DOI10.1002/asia.202000807, Early Access Date = SEP 2020
Type of Journal (Indian or Foreign)

Foreign

Impact Factor (IF)

4.056

Divison category: 
Catalysis and Inorganic Chemistry
Physical and Materials Chemistry
Polymer Science & Engineering

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