Molecular engineered rhenium(<scp>i</scp>) carbonyl complexes to promote photoisomerization of coordinated stilbene-like ligands in the visible region
作者:Ronaldo C. Amaral、Neyde Y. Murakami Iha
DOI:10.1039/c8dt02721h
日期:——
Novel fac-[Re(CO)3(dmcb)(trans-stpyR)]+ complexes, dmcb = 4,4′-dimethoxycarbonyl-2,2′-bipyridine, have been judiciously engineered to absorb at lower energies and sensitize trans-4-styrylpyridine (trans-stpy) or trans-4-(4-cyano)styrylpyridine (trans-stpyCN) photoisomerizable ligands up to 436 nm of irradiation. Moreover, these complexes exhibit remarkable photoreversibility, in particular fac-[Re
新型的fac- [Re(CO)3(dmcb)(反式-stpyR)] +配合物dmcb = 4,4'-二甲氧基羰基-2,2'-联吡啶经过精心设计,可以吸收较低的能量并能使反式- 4-苯乙烯基吡啶(反式-stpy)或反式-4-(4-氰基)苯乙烯基吡啶(反式-stpyCN)的可光异构化配体,最大辐射波长为436 nm。而且,这些配合物表现出显着的光可逆性,特别是fac- [Re(CO)3(dmcb)(反式-stpyCN)] +(Φ255 nm顺式→反式= 0.26±0.02)。在这项工作中描述了它们独特而值得注意的光化学和光物理行为。这项研究的主要重点是,该配合物有效地使二苯乙烯类配体异构化,从而可用于潜在的太阳能设备应用中。