期刊
INORGANIC CHEMISTRY
卷 55, 期 5, 页码 2565-2573出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.5b02931
关键词
-
资金
- Deutsche Forschungsgemeinschaft [INST 93/774-1 FUGG]
The reactions of the ditopic ligand 1,4-bis(2,2':6',2 ''-terpyridin-4'-yl)benzene (1) as well as the mono topic ligands 4'-phenyl-2,2':6',2 ''-terpyridine (2) and 2,2':6',2 ''-terpyridine (3) with Fe2+, Co2+, and Ni2+ in solution are studied. While the reaction of 1 with Fe2+, Co2+, and results in metallo-supramolecular coordination polyelectrolytes (MEPEs), ligands 2 and 3 give mononuclear complexes. All compounds are analyzed by UV/vis and fluorescence spectroscopy. Fluorescence spectroscopy indicates that protonation as well as coordination to Zn2+ leads to an enhanced fluorescence of the terpyridine ligands. In contrast, Fe2+, Co2+, or Ni2+ quench the fluorescence of the ligands. The kinetics of the reactions are studied by stopped-flow fluorescence spectroscopy. Analysis of the measured data is presented the terpyridine ligands 1, 2, and 3 to Fe2+, Co2+, and Ni2+ are presented. The coordination occurs within a few seconds, and the rate constant increases in the order Ni2+ < Co2+ < Fe2+. With the rate constants at hand, the polymer growth of Ni-MEPE is computed.
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