期刊
INORGANIC CHEMISTRY
卷 56, 期 12, 页码 7010-7018出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.7b00611
关键词
-
资金
- Universita di Pisa (Fondi di Ateneo)
- Universita di Pisa [PRA_2016_50]
- Ministero Istruzione Universita e Ricerca, MIUR (PRIN) [20154X9ATP]
We describe a new organic/inorganic material emitting circularly polarized luminescence (CPL). The hybrid system was obtained by the following steps: (i) preliminary grafting of the europium N,N-dibutylcarbamate [Eu(O2CNBu2)(3)] complex onto silica, (ii) substitution of the residual carbamato groups with anionic 1,3-diphenyl-1,3-propanedionato ligands (dbm), and (iii) subsequent introduction of the neutral tridentate chiral ligand 2,6-bis(isopropyl(2)-oxazolin-2-yl)pyridine (Pr-PyBox) in the metal coordination sphere. The solid material is stable to air and does not leach either the metal or the ligand. Samples of both enantiomers have been studied, showing mirror-image CPL spectra. The molecular compounds [Eu(dbm)(3)-(S)-(Pr-i-PyBox)] and [Eu(dbm)(3)-(R)-(`PrPyBox)] were prepared for comparison purposes and their molecular structures studied by single-crystal X-ray diffraction, showing mononuclear derivatives with a coordination number of 9 for europium. Powder X-ray diffraction showed a single crystalline phase. Photoluminescence and CPL evidenced the presence of a single emitting species.
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