Труды сотрудников института физики

/ N. N. Golovnev [et al.] // Russ. J. Coord. Chem. - 2019. - Vol. 45, Is. 8. - P. 569-572, DOI 10.1134/S1070328419080037. - Cited References: 25. - This work was supported by the Ministry of Education and Science of the Russian Federation in the framework of the state task for the Siberian Federal University for 2017-2019 (4.7666.2017/BCh). . - ISSN 1070-3284. - ISSN 1608-3318РУБ Chemistry, Inorganic & Nuclear

Аннотация: The structure of the complex [Cu(Bipy)2(BA)] ∙ 7H2O (I), where Bipy is 2,2'-dipyridyl, and BA2– is the barbituric acid anion (H2BA), is determined (CIF file CCDC no. 1887338). The thermal decomposition and IR spectrum of complex I are studied. The crystals are orthorhombic: a = 26.118(3), b = 27.685(3), c = 15.683(2) Å, V = 11 370(2) Å3, space group Fdd2, Z = 16. The discrete structure of the polar crystal consists of neutral [Cu(Bipy)2(BA)] particles and molecules of crystallisation water . The Cu2+ ion is bound to the N atoms of two bidentate Bipy molecules and the N atom of the BA2− ion at the vertices of the trigonal bipyramid CuN5. Compound I is the first example of the metal complex only with the N-coordinated anions of barbituric acid (BA2−, НBA−). The structure is stabilized by hydrogen bonds O−H∙∙∙O and N−H∙∙∙O to form a three-dimensional network with the π–π interaction between the Bipy molecules. The compound begins to lose water at ~50°С and is completely dehydrated above 200°С.

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Держатели документа:
Siberian Fed Univ, Krasnoyarsk, Russia.
Russian Acad Sci, Kirenskii Inst Phys, Siberian Branch, Krasnoyarsk, Russia.
Far East State Transport Univ, Khabarovsk, Russia.
Russian Acad Sci, Favorskii Inst Chem, Siberian Branch, Irkutsk, Russia.

Доп.точки доступа:
Golovnev, N. N.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Sterkhova, I. V.; Lesnikov, M. K.; Ministry of Education and Science of the Russian Federation [4.7666.2017/BCh]