名称:
Bimetallic Ruthenium Complexes: Synthesis, Characterization, and the Effect of Appending Long Carbon Chains to Their Bridges
摘要:
A series of binuclear ruthenium complexes [RuCl(CO)(PMe3)(3)](2)(mu-CH=CH-Ar-CH=CH) (Ar = C6H2(OR)(2)-2,5; R = CH3 (4a), (C4H9)-C-n (4b), (C6H13)-C-n (4c), (C8H17)-C-n (4d), (C10H21)-C-n (4e), (C12H25)-C-n (4f), (C14H29)-C-n (4g)), [RuCl(CO)(PMe3)(3)](2)(mu-CH=CH-Ar--Ar-CH=CH) (Ar = C6H2(R)(2)-2,5; R = OCH3 (10a), (OC8H17)-C-n (10b), H (10c)), and [RuCl(CO)(PMe3)(3)](2)(mu-CH=CH-Ar--Ar--Ar-CH=CH) (Ar = C6H2(R)(2)-2,5; R = OCH3 (13a), (OC8H17)-C-n (13b), H (13c)) have been synthesized. These complexes have been characterized by elemental analysis, NMR, and UV/vis spectrophotometry. The structures of 4b and 4d have been determined by X-ray crystallography. Electrochemical studies have shown that long carbon chains attached to the bridges of the complexes facilitate the stability of mixed-valence bimetallic ruthenium complexes.