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Crystal structure of calcium trans-N-(nitrilotriacetato)(pyridine-2-carboxylato)cobaltate(III) hexahydrate, Ca[Co(Nta)(Pic)](2) center dot 6H(2)Oстатья
Информация о цитировании статьи получена из
Web of Science,
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Zasurskaya L.A., Polyakova I.N., Polynova T.N., Poznyak A.L., Sergienko V.S.
- Журнал: Crystallography Reports
- Том: 47
- Номер: 5
- Год издания: 2002
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 783
- Последняя страница: 790
- DOI: 10.1134/1.1509393
- Аннотация: Crystals of Ca[Co-III(Nta)(Pic)](2).6H(2)O (I) (where Nta(3-) and Pic are the nitrilotriacetate and picolinate ions, respectively) are prepared and characterized by the X-ray diffraction technique. Crystals I are monoclinic, a = 18.599(4) Angstrom, b = 12.556(3) Angstrom, c = 14.042(3) Angstrom, beta = 102.90(3)degrees, V = 3196(l) Angstrom(3), Z = 4, space group P2(1)/c, R1 = 0.0278, wR2 = 0.0716, and Goof = 1.054 for 4982 reflections with I > 2sigma(I). Structure I is built of the [Ca(H2O)(4)[Co(Nta)(Pic)](2)} (1infinity) polymer ribbons and molecules of crystallization water. One of the two symmetrically independent anionic complexes (B) is included in the chain and alternates with cationic units, whereas the other anionic complex (A) forms a branch of this chain. The cationic and anionic units are interlinked via the interactions of the Ca2+ cations with the carbonyl atoms of the main (Nta(3-)) and additional (Pic(-)) ligands. The octahedral environment of the Co(III) atoms consists of donor atoms of the Nta(3-) (N + 3O) and Pic- (N + O) ligands. The coordination polyhedron of the Ca atom (pentagonal bipyramid) includes two carbonyl O atoms of two Nta(3-) ligands, one O-Pic atom, and four O-w atoms of water molecules. (C) 2002 MAIK "Nauka/Interperiodica".
- Добавил в систему: Засурская Лариса Александровна