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Zinc(II) complexes with an imidazolylpyridine ligand: luminescence and hydrogen bonding Full article

Journal Journal of Coordination Chemistry
ISSN: 0095-8972 , E-ISSN: 1029-0389
Output data Year: 2014, Volume: 67, Number: 4, Pages: 611-622 Pages count : DOI: 10.1080/00958972.2014.892589
Tags Hydrogen bond; Zinc(II); N-ligands; Luminescence; Supramolecular chemistry; Synthesis
Authors Bushuev Mark B. 1,2 , Selivanov Boris A. 3 , Pervukhina Natalia V. 1 , Naumov Dmitrii Yu. 1 , Sheludyakova Lilia A. 1,2 , Rakhmanova Marianna I. 1 , Tikhonov Alexsei Ya. 3 , Larionov Stanislav V. 1
Affiliations
1 (Данные Web of science) Russian Acad Sci, Nikolaev Inst Inorgan Chem, Siberian Branch, Novosibirsk, Russia
2 (Данные Web of science) Novosibirsk State Univ, Natl Res Univ, Dept Nat Sci, Novosibirsk 630090, Russia
3 (Данные Web of science) Russian Acad Sci, Siberian Branch, NN Vorozhtsov Novosibirsk Inst Organ Chem, Novosibirsk, Russia

Abstract: ZnLCl and [H2L](2)[ZnCl4], based on 2-(1-hydroxy-4,5-dimethyl-1H-imidazol-2-yl)pyridine (HL), have been synthesized. There is a short intraionic O-H center dot center dot center dot N hydrogen bond between the hydroxyimidazolyl and pyridyl of H2L+ cations (N center dot center dot center dot O 2.608(2) angstrom) in the structure of [H2L](2)[ZnCl4]. The formation of this rather strong hydrogen bond is confirmed by IR spectroscopy through a broad band at 3200-2200 cm(-1) and a band at 1655 cm(-1). HL crystallizes in the form of a hemihydrate, HL center dot 0.5H(2)O. HL assemble into infinite helical chains due to N-H center dot center dot center dot O intermolecular hydrogen bonds between the NH of imidazole and O of the N-oxide (O center dot center dot center dot N 2.623(2) angstrom). An unusual mid-IR pattern with three broad bands at 3373, 2530, and 1850 cm(-1) is typical for strong hydrogen bonds, explained by resonance-assisted hydrogen bonding occurring in the helical chains. On cooling to 5 K, noticeable changes in the IR spectra of [H2L](2)[ZnCl4] and HL center dot 0.5H(2)O were observed. ZnLCl and [H2L](2)[ZnCl4] exhibit bright photoluminescence with maxima of emission at 458 nm (for ZnLCl) and 490 nm (for [H2L](2)[ZnCl4]).
Cite: Bushuev M.B. , Selivanov B.A. , Pervukhina N.V. , Naumov D.Y. , Sheludyakova L.A. , Rakhmanova M.I. , Tikhonov A.Y. , Larionov S.V.
Zinc(II) complexes with an imidazolylpyridine ligand: luminescence and hydrogen bonding
Journal of Coordination Chemistry. 2014. V.67. N4. P.611-622. DOI: 10.1080/00958972.2014.892589 WOS Scopus РИНЦ
Dates:
Published print: Feb 16, 2014
Published online: Mar 10, 2014
Identifiers:
Web of science WOS:000333954500005
Scopus 2-s2.0-84899068490
Elibrary 21873464
OpenAlex W1981420124
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