The syntheses and characterisation of a series of mononuclear and dinuclear ruthenium polypyridyl complexes based on the bridging ligands 1,3-bis-[5-(2-pyridyl)-1H-1,2,4-triazol-3-yl]benzene, 1,4-bis-[5-(2-pyridyl)-1H-1,2,4-triazol-3-yl]benzene, 2,5-bis-[5-(2-pyridyl)-1H-1,2,4-triazol-3-yl]thiophene, 2,5-bis-[5-pyrazinyl-1H-1,2,4-triazol-3-yl]thiophene are reported. Electrochemical studies indicate that in these systems, the ground state interaction is critically dependent on the nature of the bridging ligand and its protonation state, with strong and weak interactions being observed for thiophene- and phenylene-bridged complexes, respectively.
报道了一系列基于桥联配体1,3-双-[5-(2-吡啶基)-1H-1,2,4-三唑-3-基]苯,1,4-双-[5-(2-吡啶基)-1H-1,2,4-三唑-3-基]苯,2,5-双-[5-(2-吡啶基)-1H-1,2,4-三唑-3-基]噻吩,2,5-双-[5-吡嗪基-1H-1,2,4-三唑-3-基]噻吩的单核和双核钌多吡啶配合物的合成与表征。电化学研究表明,在这些系统中,基态相互作用关键取决于桥联配体的性质及其质子化状态,噻吩桥联配合物和苯基桥联配合物分别观察到强相互作用和弱相互作用。