Ruthenium chromophores containing terpyridine and a series of polyazine bridging ligands
作者:Lisa M. Vogler、Cristian Franco、Sumner W. Jones、Karen J. Brewer
DOI:10.1016/0020-1693(94)03975-5
日期:1994.6
monometallic Ru(II) complexes have been synthesized with the general formula [Ru(tpy)(BL)Cl] + and [Ru(tpy)(BL)(py)] 2+ and their spectroscopic, electrochemical and photochemical properties studied (where tpy=2,2′:6′,2″-erpyridine and BL=bridging ligand). The bridging ligands utilized in these complexes were 2,3-bis(2-pyridyl)pyrazine (dpp), 2,3-bis(2-pyridyl)quinoxaline (dpq) and 2,3-bis(2-pyridyl)benzoquinoxaline
摘要合成了一系列通式为[Ru(tpy)(BL)Cl] +和[Ru(tpy)(BL)(py)] 2+的单金属Ru(II)配合物,并对其光谱,电化学和光化学性质进行了研究。研究的性质(其中tpy = 2,2':6',2''-二吡啶和BL =桥联配体)。这些配合物中使用的桥联配体是2,3-双(2-吡啶基)吡嗪(dpp),2,3-双(2-吡啶基)喹喔啉(dpq)和2,3-双(2-吡啶基)苯并喹喔啉( dpb)。所有六个络合物的最低能量吸收被指定为Ru(dπ)→BL(π*)跃迁。当BL从dpp到dpq到dpb改变时,这种金属到配体的电荷转移(MLCT)转换将转移到较低的能量。用吡啶取代氯化物配体导致该转变的蓝移。[Ru(tpy)(dpp)Cl] +和所有[Ru(tpy)(BL)(py)] 2+络合物在室温下会在流体溶液中释放出来,与[Ru(tpy)2] 2+形成鲜明对比。这些配合物作为制备能够进行分