Abstract
Complexes ZnLCl2 (I) and [CdLCl2] n (IV), where L is chiral bis-pyridine containing fragments of natural monoterpenoide (–)-α-pinene are synthesized. Single crystals of [ZnLCl2]·CH2Cl2 (II), [ZnLCl2]·i-PrOH (III), and IV compounds are grown. The crystal structures of II and III are composed of mononuclear ZnLCl2 complex molecules and solvate CH2Cl2 and i-PrOH molecules; the coordination polyhedron of the zinc atom Cl2N2 is a distorted tetrahedron. According to the single crystal XRD data, complex IV is a 1D coordination polymer; the coordination core CdN2Cl4 is a distorted octahedron and Cl atoms are bridging ligands. In the structures of II, III, and IV the L molecule functions as a bidentate chelate ligand. In the solid phase, complexes I and IV exhibit photoluminescence in the visible range (λmax 505 nm and 460 nm respectively). The band intensity in the photoluminescence spectra of I and IV complexes considerably exceeds the band intensity in the spectrum of free L.
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Original Russian Text © 2017 T. E. Kokina, L. A. Glinskaya, E. S. Vasiliev, M. I. Rakhmanova, S. V. Makarova, D. A. Piryazev, I. V. Korol’kov, A. V. Tkachev, S. V. Larionov.
Translated from Zhurnal Strukturnoi Khimii, Vol. 58, No. 5, pp. 1032–1041, June–July, 2017.
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Kokina, T.E., Glinskaya, L.A., Vasiliev, E.S. et al. Structure and photoluminescence of Zn(II) and Сd(II) complexes with chiral bis-pyridine containing fragments of natural (–)-α-pinene. J Struct Chem 58, 994–1003 (2017). https://doi.org/10.1134/S0022476617050201
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DOI: https://doi.org/10.1134/S0022476617050201