Syntheses and structures of [UO2(L)5](ClO4)2 and [U(L′)4(H2O)4](ClO4)4 (L is dimethylformamide, L′ is N,N-dimethylcarbamide)
- Authors: Serezhkin V.N.1, Vologzhanina A.V.2, Pushkin D.V.1, Astashkina D.A.1, Savchenkov A.V.1, Serezhkina L.B.1
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Affiliations:
- Samara National Research University
- Nesmeyanov Institute of Organoelement Compounds
- Issue: Vol 62, No 5 (2017)
- Pages: 725-733
- Section: Structure of Organic Compounds
- URL: https://journals.rcsi.science/1063-7745/article/view/191296
- DOI: https://doi.org/10.1134/S1063774517050170
- ID: 191296
Cite item
Abstract
The reaction of aqueous solutions of uranyl perchlorate with selected organic amides was studied in the dark and under the sunlight. The complexes [UVIO2(C3H7NO)5](ClO4)2 (I) and [UIV(C3H8N2O)4(Н2О)4](ClO4)4 (II), where C3H7NO is N,N-dimethylformamide (Dmfa) and C3H8N2O is N,N-dimethylcarbamide (a-Dmur), were studied by X-ray diffraction. Complex II and the complex UIV(s-Dmur)4(Н2О)4(ClO4)4 (III), where s-Dmur is N,N'-dimethylcarbamide, were studied by IR spectroscopy. Crystals I and II are composed of mononuclear [UO2(Dmfa)5]2+ and [U(Dmur)4(Н2О)4]4+ groups as uranium-containing structural units belonging to the crystal-chemical groups AМ71 (А = UVI, М1 = O2– and Dmfa) and AМ81 (А = UIV, М1 = Dmur and Н2О) of uranium complexes, respectively. The mononuclear uranium- containing complexes in the crystals of U(IV) and U(VI) perchlorates were found to obey the 14 neighbors rule.
About the authors
V. N. Serezhkin
Samara National Research University
Author for correspondence.
Email: serezhkin@samsu.ru
Russian Federation, Samara, 443011
A. V. Vologzhanina
Nesmeyanov Institute of Organoelement Compounds
Email: serezhkin@samsu.ru
Russian Federation, Moscow, 119991
D. V. Pushkin
Samara National Research University
Email: serezhkin@samsu.ru
Russian Federation, Samara, 443011
D. A. Astashkina
Samara National Research University
Email: serezhkin@samsu.ru
Russian Federation, Samara, 443011
A. V. Savchenkov
Samara National Research University
Email: serezhkin@samsu.ru
Russian Federation, Samara, 443011
L. B. Serezhkina
Samara National Research University
Email: serezhkin@samsu.ru
Russian Federation, Samara, 443011