Abstract
Novel diruthenium compounds containing heterocycle-acetylide are reported here. Ru 2(Y-DMBA) 4(C C-2-pyrimidine) 2 were prepared from the reaction between Ru 2(Y-DMBA) 4(NO 3) 2 and HC C-2-pyrimidine in the presence of Et 2NH, where Y-DMBA is either N, N′-dimethylbenzamidinate (DMBA, Y = H) or N, N′-dimethyl-(3-methoxy)benzamidinate (Y = 3-CH 3O). Ru 2(Y-DMBA) 4(C C-4- N-methylpyridinium) 2 were obtained through the methylation of known compounds Ru 2(Y-DMBA) 4(C C-4-pyridine) 2. Both the structural and voltammetric data are consistent with the heterocycles being moderate electron acceptors.
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