Meiners J, Scheibel MG, Lemée-Cailleau MH, Mason SA, Boeddinghaus MB, Fässler TF, Herdtweck E, Khusniyarov MM, Schneider S. Square-planar iridium(II) and iridium(III) amido complexes stabilized by a PNP pincer ligand.
Angew Chem Int Ed Engl 2011;
50:8184-7. [PMID:
21744449 DOI:
10.1002/anie.201102795]
[Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2011] [Indexed: 11/12/2022]
Abstract
Squaring the circle: the novel dienamido pincer ligand N(CHCHPtBu(2))(2)(-) affords the isolation of the unusual square-planar iridium(II) and iridium(III) amido complexes [IrCl{N(CHCHPtBu(2))(2)}](n) (n=0 (1), +1 (2)). In contrast, the corresponding iridium(I) complex of the redox series (n=-1) is surprisingly unstable. The diamagnetism of 2 is attributed to strong N→Ir π donation.
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