engleski

Organoplatinum(II) Complexes Containing Chelating or Bridging Bis(N-Heterocyclic Carbene) Ligands: Formation of a Platinum(II) Carbonate Complex by Aerial CO2 Fixation

The preparation of two new bis(N-heterocyclic carbene) platinum(II) complexes, in which NHC rings are joined by a CH2 linker group, is described. While, the chelate complex [PtMe2(bis-NHC1)], 1, was formed with large tert-butyl wingtips, the iso-propyl N-substituent analogue favors formation of the cluster complex [Pt2Me4(μ-SMe2)(μ-bis-NHC2)]2(μ-Ag2Br2), 2, in which two binuclear platinum(II) complexes are linked together by an Ag2Br2 unit. The chelating platinum complex 1 undergoes aerial CO2 fixation and forms platinum(II) carbonate complex [Pt(CO3)(bis-NHC1)], 3.

platinum(II) complex; N-heterocyclic carbene; CO2 fixation

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