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- Title
Zn(II), Cd(II), and Pd(II) Complexes with a 1,10-Phenanthroline Derivative Bearing Diisopropylidene Glucose: Synthesis, Structure, Properties.
- Authors
Kokina, T. E.; Agafontsev, A. M.; Sizintseva, K. D.; Komarov, V. Y.; Rakhmanova, M. I.; Golubeva, Y. A.; Klyushova, L. S.
- Abstract
Complexes [Cd4L4Cl8]·2H2O (I), ZnLCl2 (II), and PdLCl2·CH2Cl2 (III) (L = chiral derivative of 1,10-phenanthroline bearing diisopropylidene glucose) are synthesized. Single crystals of [Cd4L4Cl8] (IV) are prepared. According to the XRD data, the crystal structure of IV consists of molecules of the tetranuclear complex; the coordination number of two terminal and two central Cd2+ ions is 5 (Cl2N3) and 6 (Cl4N2), respectively. In the structure of IV, the L ligand is a bidentate cyclic ligand; Cl atoms exhibit both bridging and monodentate ligand functions. Complexes I–III are characterized by powder XRD and IR spectroscopy. According to the powder XRD data, I is isostructural to IV. Photophysical properties of solid samples of L, I, II are studied. Compound L exhibits excitation-wavelength dependent emission, the excited state lifetimes varying within nano- and microsecond regions. Complexes I and II exhibit ligand-centered photoluminescence. The luminescence quantum yields are as high as 15%. Cytotoxic properties of L, cadmium chloride, and I–III solutions are studied on the human laryngeal carcinoma cell line Hep2.
- Subjects
GLUCOSE synthesis; CADMIUM compounds; SCHIFF bases; X-ray diffraction; CADMIUM chloride; EXCITED states; SINGLE crystals
- Publication
Journal of Structural Chemistry, 2023, Vol 64, Issue 12, p2311
- ISSN
0022-4766
- Publication type
Article
- DOI
10.1134/S002247662312003X