Synthesis and structure of crystals of UO2(C2H5COO)2·1.5L (L = methylurea or N,N’-dimethylurea)
- Authors: Serezhkin V.N.1, Grigor’ev M.S.2, Abdul’myanov A.R.1, Serezhkina L.B.1
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Affiliations:
- Samara State University
- Frumkin Institute of Physical Chemistry and Electrochemistry
- Issue: Vol 58, No 2 (2016)
- Pages: 114-123
- Section: Article
- URL: https://journals.rcsi.science/1066-3622/article/view/223344
- DOI: https://doi.org/10.1134/S1066362216020028
- ID: 223344
Cite item
Abstract
The compounds UO2(C2H5COO)2·1.5L, where L is methylurea (Meur) or N,N’-dimethylurea (s-Dmur), were synthesized and studied by IR spectroscopy and single crystal X-ray diffraction. Irrespective of the kind of amide L, the structure of the compounds consists of two mononuclear uranium-containing complexes: cationic [UO2(prop)L3]+ and anionic [UO2(prop)3]–, where prop is propionate ion. Both compounds belong to crystal-chemical group AB01M31+ AB01M301 (A = UO22+, B01 = prop–, M1 = L) of uranyl complexes. The composition of 15 stable uranyl complexes that can be formed in the UO22+, B01–prop––L–H2O system was predicted on the basis of the characteristics of the Voronoi–Dirichlet polyhedra from the standpoint of the 18-electron rule.
About the authors
V. N. Serezhkin
Samara State University
Author for correspondence.
Email: Serezhkin@samsu.ru
Russian Federation, ul. Akad. Pavlova 1, Samara, 443011
M. S. Grigor’ev
Frumkin Institute of Physical Chemistry and Electrochemistry
Email: Serezhkin@samsu.ru
Russian Federation, Leninskii pr. 31, korp. 4, Moscow, 119071
A. R. Abdul’myanov
Samara State University
Email: Serezhkin@samsu.ru
Russian Federation, ul. Akad. Pavlova 1, Samara, 443011
L. B. Serezhkina
Samara State University
Email: Serezhkin@samsu.ru
Russian Federation, ul. Akad. Pavlova 1, Samara, 443011