Abstract
A series of ZnII complexes with an O,N,O tridentate core is reported. Four species of the general formula ZnLiPy2 were obtained from pyridine, where Li is a substituted 4-[(aroylhydrazono)methyl]-3-hydroxyphenyl 4-(octyloxy)benzoate group. Crystal structures were solved by single-crystal X-ray diffraction. Nematogenic phase behavior was detected only for the ligands. Photoluminescence spectra were recorded both in solution and in the solid state, and the complexes showed noteworthy photoluminescence in the solid state with wavelengths tunable by varying the aroyl group. Medium to very high photoluminescence quantum yields (PLQY) were recorded on the crystalline complexes obtained in their mononuclear coordination environments. In the case of a 4-nitrobenzoyl substituent on the ligand, a dinuclear complex with formula Zn2L42Py2 showed an unprecedented and exceptionally high PLQY value for a crystalline zinc complex. Molecular and periodic calculations were performed by using Density Functional Theory (DFT).
Original language | English |
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Pages (from-to) | 5916-5924 |
Number of pages | 9 |
Journal | European Journal of Inorganic Chemistry |
Volume | 2014 |
Issue number | 34 |
DOIs | |
State | Published - 1 Jan 2014 |
Keywords
- Luminescence
- Schiff bases
- Tridentate ligands
- Zinc
ASJC Scopus subject areas
- Inorganic Chemistry