Cyclometallation of a germylene ligand by concerted metalation-deprotonation of a methyl group

Title Cyclometallation of a germylene ligand by concerted metalation-deprotonation of a methyl group
Publication TypeJournal Article
Year of Publication2018
AuthorsBakthavachalam, K, Dutta, S, Arivazhagan, C, Raghavendra, B, Haridas, A, Sen, SS, Koley, D, Ghosh, S
JournalDalton Transactions
Volume47
Issue44
Pagination 15835-15844
Date Published NOV
Type of ArticleArticle
ISSN1477-9226
AbstractThe reaction of [CH{(CMe)(2,6-iPr(2)C(6)H(3)N)}(2)]GeCl with LiN(SiMe3)(2) was previously reported, which led to the formation of a hetero-fulvene type germylene, [CH{(CMe)(C?CH2)(2,6-iPr(2)C(6)H(3)N)}(2)]Ge through the deprotonation of the C-H bond from the methyl substituents. In this paper, we attempted the analogous reaction with (Dipp)NCMeCHCOMeGeCl using LiN(SiMe3)(2) which gave rise to a metathesis product, (Dipp)NCMeCHCOMeGeN(SiMe3)(2) (2). However, the reactions of 2 with [M2Cl2(-Cl)(2)((5)-Cp*)(2)] (M = Rh and Ir) resulted in cyclometallated Rh and Ir complexes through the activation of the C-H bond from the germylene ligand. The complexes were characterized by single crystal X-ray analysis, which authenticated the presence of Ge-Rh and Ge-Ir bonds. DFT studies have been performed to understand the mechanism.
DOI10.1039/c8dt03166e
Type of Journal (Indian or Foreign)Foreign
Impact Factor (IF)4.099
Divison category: 
Catalysis and Inorganic Chemistry

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