Diruthenium compounds of thiol capped oligo(phenyleneethynyl) ligand: Synthesis and characterization
作者:Jie-Wen Ying、Tong Ren
DOI:10.1016/j.jorganchem.2006.06.005
日期:2006.9
Reactions between Ru-2(DMBA)(4)(NO3)(2) and OPEn-S-TMSE ligand under weak base conditions afford trans-Ru-2(DMBA)(4)(OPEn-S-TMSE)(2) compounds, where DMBA is N,N'-dimethylbenzamidinate, TMSE is trimethylsilyiethylene, and OPEn are -C CC6H4- (1), -C C(2,5-(CH3O)(2)C6H2)-(C CC6H4)- (2) and -(C CC6H4)-C C(2,5-(CH3O)(2)C6H2)-(C CC6H4)- (3). Molecular structures of compounds 1 and 2 were determined by X-ray diffraction, which revealed the extended rigid rod topology and coplanarity of phenylene-ethynye units in 1 and 2. Electrochemical and optical energy gaps of compounds 1-3 were estimated to be 1.57 eV and ca. 1.43 eV, respectively, from voltammetric and absorption spectral measurements. (c) 2006 Elsevier B.V. All rights reserved.