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- Title
Complexes of Zn(II) and Cd(II) with Dimethylaminooxime Picoline Ester, a Terpene Derivative of (+)-3-Carene: Synthesis, Structure, and Photoluminescence Properties.
- Authors
Kokina, T. E.; Agafontsev, A. M.; Glinskaya, L. A.; Rakhmanova, M. I.; Tkachev, A. V.
- Abstract
Picoline ester of dimethylaminooxime of the (+)-3-carene series (L) and mononuclear complexes [ZnLCl2] (I) and [CdLCl2] (II) have been synthesized. In the structure of the complexes, the Zn2+ and Cd2+ ions coordinate three N atoms of the tridentate cyclic ligand L and two Cl atoms. The Cl2N3 coordination polyhedron of complex I is noticeably distorted. In the structure of complex II consisting of two independent molecules, the coordination polyhedron of one independent molecule is a square pyramid and the other is a trigonal bipyramid. The photophysical properties of solid samples of L, I and II have been studied. The ligand L exhibits emission that depends on the luminescence excitation wavelength. The lifetimes of the excited states of L are in the nanosecond range. Complexes I and II exhibit ligand-centered photoluminescence with luminescence quantum yields reaching 11%.
- Subjects
METHYLPYRIDINE; PHOTOLUMINESCENCE; TERPENES; CADMIUM compounds; SCHIFF bases; ESTER derivatives; ESTERS; EXCITED states
- Publication
High Energy Chemistry, 2023, Vol 57, pS416
- ISSN
0018-1439
- Publication type
Article
- DOI
10.1134/S0018143923090072