New Monoiodoacetate Complexes of Uranyl: Synthesis and Structure

Авторы: Serezhkina L.B., Vologzhanina A.V., Mitina D.S., Serezhkin V.N.
Журнал: Radiochemistry
Том: 64
Номер: 6
Год издания: 2022
Издательство: Pleiades Publishing, Inc.
Местоположение издательства: New York, USA
Первая страница: 686
Последняя страница: 693
DOI: 10.1134/s1066362222060030
Аннотация: Synthesis, IR spectroscopic, and X-ray diffraction study of crystals of two new iodoacetate complexesof uranyl: [UO2(mia)2(H 2O) 2] 2·2(C3H 6N 2O) (I) and (CN3H 6) 2[UO 2(mia)3] 2·(C 2N 4H 4) (II) were performed, where mia is the CH2ICOO – iodoacetate ion, C3H 6N 2O is ethylene urea, and C2N 4H 4 is cyanoguanidine. In crystals of I, each U(VI) atom of the uranyl group coordinates two water molecules and two bidentate cyclic anions mia, forming a hexagonal bipyramidal complex with the crystal chemical formula А(В01)2(М 1) 2, where A = (UO2)2+, B01 = mia.M 1 = H 2O. The uranium-containing structural units of II crystals are mononuclear [UO2(mia)3]– complexes with the crystal chemical formula A(B01)3, where A = (UO2)2+, B01 = mia. Using the parameters of the Voronoi–Dirichlet polyhedra of iodine atoms, it was found that in structure II, halogen bonds U=O···I−C are involved in the binding of neighboring [UO2(mia)3]– complexes.
Добавил в систему: Вологжанина Анна Владимировна

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