Benzene C−H Activation by Two Isomeric Platinum(II) Complexes of Bis(N-7-azaindolyl)methane

Two isomeric Pt(II) complexes, Pt(L1)(CH3)2 (1a) and Pt(L2)(CH3)2 (2a), based on two isomeric and fluorescent ligands of bis(N-7-azaindolyl)methane, L1 (symmetric) and L2 (asymmetric), have been synthesized and fully characterized by NMR and X-ray diffraction analyses. In the presence of [H(Et2O)2][...

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Bibliographic Details
Published in:Organometallics 2003-05, Vol.22 (11), p.2187-2189
Main Authors: Song, Datong, Wang, Suning
Format: Article
Language:English
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Summary:Two isomeric Pt(II) complexes, Pt(L1)(CH3)2 (1a) and Pt(L2)(CH3)2 (2a), based on two isomeric and fluorescent ligands of bis(N-7-azaindolyl)methane, L1 (symmetric) and L2 (asymmetric), have been synthesized and fully characterized by NMR and X-ray diffraction analyses. In the presence of [H(Et2O)2][BAr‘4] (Ar‘ = 3,5-bis(trifluoromethyl)phenyl), both 1a and 2a are capable of activating a benzene C−H bond readily at ambient temperature. The products from benzene activation by 1a and 2a have been isolated as [Pt(L1)Ph(SMe2)][BAr‘4] (1b) and [Pt(L2)Ph(SMe2)][BAr‘4] (2b). The structures of 1b and 2b have been determined by X-ray diffraction analyses. The phenyl ligand in 2b is bound exclusively trans to the pyrrole nitrogen atom of L2.
ISSN:0276-7333
1520-6041
DOI:10.1021/om0301785