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Zinc(II) and cadmium(II) complexes based on 4-(3,5-diphenyl-1H-pyrazol-1-yl)-6-(piperidin-1-yl)pyrimidine (L): Synthesis, structure, luminescence. Double lone pair-pi interactions in the structure of ZnL2Cl2 Научная публикация

Журнал Inorganica Chimica Acta
ISSN: 0020-1693 , E-ISSN: 1873-3255
Вых. Данные Год: 2011, Том: 371, Номер: 1, Страницы: 88-94 Страниц : DOI: 10.1016/j.ica.2011.03.007
Ключевые слова Zinc(II); Cadmium(II); Pyrazolylpyrimidines; Synthesis; Non-covalent (lone pair-pi, C-H center dot center dot center dot N and C-H center dot center dot center dot Cl) interactions; Luminescence
Авторы Bushuev Mark B. 1,2 , Vinogradova Katerina A. 1,2 , Krivopalov Viktor P. 3 , Nikolaenkova Elena B. 3 , Pervukhina Natalia V. 1 , Naumov Dmitrii Yu. 1 , Rakhmanova Marianna I. 1 , Uskov Evgenii M. 1 , Sheludyakova Lilia A. 1,2 , Alekseev Aleksei V. 1 , Larionov Stanislav V. 1
Организации
1 (Данные Web of science) Russian Acad Sci, Nikolaev Inst Inorgan Chem, Siberian Branch, Novosibirsk 630090, Russia
2 (Данные Web of science) Novosibirsk State Univ, Novosibirsk 630090, Russia
3 (Данные Web of science) Russian Acad Sci, NN Vorozhtsov Novosibirsk Inst Organ Chem, Siberian Branch, Novosibirsk 630090, Russia

Реферат: A series of zinc(II) and cadmium(II) complexes with 4-(3,5-diphenyl-1H-pyrazol-1-yl)-6-(piperidin-1-yl) pyrimidine (L), ZnLCl2, CdLCl2, ZnL2Cl2, CdL2Cl2, CdL2Cl2 center dot 0.5Me(2)CO center dot 1.5H(2)O and CdL2Cl2 center dot 0.5CHCl(3)center dot 0.5H(2)O, have been synthesized. The compounds ZnLCl2 and CdLCl2 were obtained in a M:L = 1:1 molar ratio in EtOH solutions, while ZnL2Cl2 and CdL2Cl2 were isolated in a M:L = 1:3 molar ratio in EtOH/Me2CO mixtures. Surprisingly, attempts to crystallize CdLCl2 from EtOH/Me2CO mixture afforded single crystals of a compound, having 1:2 metal-to-ligand stoichiometry, CdL2Cl2 center dot 0.5Me(2)CO center dot 1.5H(2)O, instead of a complex with 1:1 stoichiometry. At the same time, crystallization of CdL2Cl2 from Me2CO/CHCl3 mixture afforded CdL2Cl2 center dot 0.5CHCl(3)center dot 0.5H(2)O single crystals. According to X-ray crystal structure data, ZnLCl2, ZnL2Cl2, CdL2Cl2 center dot 0.5Me(2)CO center dot 1.5H(2)O and CdL2Cl2 center dot 0.5CHCl(3)center dot 0.5H(2)O complexes have molecular mononuclear structures. The molecules of L adopt bidentate chelating binding mode being coordinated to the metal ions through N-2 atom of the pyrazole and N-3 atom of the pyrimidine rings. The coordination core of zinc atom in ZnLCl2 complex is a distorted ZnN2Cl2 tetrahedron. The coordination cores of metal atoms in the structures of ZnL2Cl2, CdL2Cl2 center dot 0.5Me(2)CO center dot 1.5H(2)O and CdL2Cl2 center dot 0.5CHCl(3)center dot 0.5H(2)O are the distorted cis-MN4Cl2 (M = Zn, Cd) octahedra. In the structure of ZnL2Cl2 double lone pair(N(piperidine))-pi(pyrimidine) interactions were observed. The photoluminescent properties of L, ZnLCl2, CdLCl2, ZnL2Cl2 and CdL2Cl2 were studied in the solid state under the same experimental conditions. These compounds were found to display bright blue luminescence. Highest relative intensity of emission was detected for ZnL2Cl2. (C) 2011 Elsevier B. V. All rights reserved.
Библиографическая ссылка: Bushuev M.B. , Vinogradova K.A. , Krivopalov V.P. , Nikolaenkova E.B. , Pervukhina N.V. , Naumov D.Y. , Rakhmanova M.I. , Uskov E.M. , Sheludyakova L.A. , Alekseev A.V. , Larionov S.V.
Zinc(II) and cadmium(II) complexes based on 4-(3,5-diphenyl-1H-pyrazol-1-yl)-6-(piperidin-1-yl)pyrimidine (L): Synthesis, structure, luminescence. Double lone pair-pi interactions in the structure of ZnL2Cl2
Inorganica Chimica Acta. 2011. V.371. N1. P.88-94. DOI: 10.1016/j.ica.2011.03.007 WOS Scopus РИНЦ OpenAlex
Даты:
Опубликована в печати: 1 мая 2011 г.
Идентификаторы БД:
Web of science: WOS:000290392100014
Scopus: 2-s2.0-79955855918
РИНЦ: 16982604
OpenAlex: W2079283183
Цитирование в БД:
БД Цитирований
Web of science 30
Scopus 29
РИНЦ 29
OpenAlex 26
Альметрики: