Bonding and Electronic Properties of Linear Diethynyl Oligothienoacene-Bridged Diruthenium Complexes and Their Oxidized Forms
作者:Ya-Ping Ou、Jing Zhang、Ming-Xing Zhang、Fuxing Zhang、Daizhi Kuang、František Hartl、Sheng Hua Liu
DOI:10.1021/acs.inorgchem.7b01433
日期:2017.9.18
the bridging ligands [Ru(dppe)Cp*}2(μ-C≡C–L–C≡C)] [dppe = 1,2-bis(diphenylphosphino)ethane, Cp* = η5-C5Me5; L = thieno[3,2-b]thiophene (4), thieno[2,3-b]thiophene (5), 3,4-dimethylthieno[2,3-b]thiophene (6), dithieno[3,2-b:2′,3′-d]thiophene (7), and thieno[3,2-b]thieno[2′,3′:4,5]thieno[2,3-d]thiophene (8)] have been synthesized and fully characterized electrochemically and spectroscopically. Elongation
基于桥连配体[Ru(dppe)Cp *} 2(μ-C≡C–L–C≡C)] [dppe = 1 1,2-双(二苯基膦基)乙烷中,Cp * =η 5 -C 5我5 ; L =噻吩并[3,2- b ]噻吩(4),噻吩并[2,3- b ]噻吩(5),3,4-二甲基噻吩并[2,3 - b ]噻吩(6),双噻吩并[3,2 - b:2',3'- d ]噻吩(7),和噻吩并[3,2- b ]噻吩并[2',3':4,5]噻吩并[2,3- d ]噻吩(8)]的合成,并在电化学和光谱学上进行了全面表征。氧化还原非无毒的低聚苯并二苯并庚烯桥芯的延伸导致在最初的两个阳极步骤之间的电势差较小,这对于游离的二烷基低聚苯并二乙炔并没有见到,并且在共轭的桥主干上正电荷的离域增加。母体配合物的最高占据分子轨道主要位于低聚苯并菲并烯核上,乙炔基连接基的强参与和金属末端的贡献较小。这种结合特性使初始的单电子氧化对称,如伏安法和