期刊
JOURNAL OF PHYSICAL CHEMISTRY A
卷 120, 期 11, 页码 1845-1852出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpca.6b00317
关键词
-
资金
- UNC EFRC: Center for Solar Fuels, an Energy Frontier Research Center - U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001011]
- Swiss National Science Foundation
- Department of Energy Office of Science Graduate Fellowship Program (DOE SCGF) [DE-AC05-06OR23100]
The complexes [Ru(qpy)LL'](2+) (qpy = 2,2':6',2 '':6 '',2 '''-quaterpyridine), with 1: L = acetonitrile, L' = chloride; 2: L = L' = acetonitrile; and 3: L L' = vinylpyridine, have been prepared from [Ru(qpy) (Cl)(2)]. Their absorption spectra in CH3CN exhibit broad metal-to-ligand charge transfer (MLCT) absorptions arising from overlapping (1)A(1) -> (MLCT)-M-1 transitions. Photoluminescence is not observed at room temperature, but all three are weakly emissive in 4:1 ethanol/methanol glasses at 77 K with broad, featureless emissions observed between 600 and 1000 nm consistent with MLCT phosphorescence. Cyclic voltammograms in CH3CN reveal the expected Rumiu redox couples. In 0.1 M trifinoroacetic acid (TFA), 1 and 2 undergo aquation to give [Ru-II(qpy)(OH2)(2)](2+), as evidenced by the appearance of waves for the couples [Ru-III(qpy)(OH2)(2)](3+)/[Ru-II(qpy)(OH2)(2)](2+), [Ru-IV(qpy)(O)(OH2](2+)/[Ru-III(qpy)(OH2)(2)](3+), and [Ru-VI(qpy)(O)(2)](2+)/[Ru-IV(qpy)(O)(OH2)(2)](2+) in cyclic voltammograms.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据