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C−H Activation by a Diplatinum(II) Complex:  Isolation and Structures of [Pt2(CH3)(SMe2)Ph2(ttab)][BAr‘4] and [Pt2(H2O)2Ph2(ttab)][BAr‘4]2 (ttab = 1,2,4,5-Tetrakis(1-N-7-azaindolyl)benzene)

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journal contribution
posted on 15.03.2004, 00:00 by Datong Song, Wen Li Jia, Suning Wang
The dinuclear Pt(II) complex Pt2(CH3)4(ttab) (1; ttab = 1,2,4,5-tetrakis(1-N-7-azaindolyl)benzene) has been found to activate multiple benzene molecules by cleaving a C−H bond in the presence of [H(Et2O)2][BAr‘4] (Ar‘ = 3,5-bis(trifluoromethyl)phenyl). The unprecedented dinuclear Pt(II) product [Pt2(CH3)(SMe2)Ph2(ttab)][BAr‘4] (2), which contains two phenyl groups on one Pt(II) center, has been isolated from the 1:1 reaction of 1 with [H(Et2O)2][BAr‘4]. The novel dinuclear Pt(II) complex [Pt2(H2O)2Ph2(ttab)][BAr‘4]2 (3) has been isolated from the 1:2 reaction of 1 with [H(Et2O)2][BAr‘4] when reagent-grade solvents were used in the recrystallization process. The structures of 2 and 3 have been established by X-ray diffraction analyses.

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