Russian Mineralogical Society
RMS Annual Session combined with the Fedorov Session 2012
Synthesis and crystal structure of the new uranyl selenite-selenate with melamine [(UO2)(SeO4)(H2SeO3)][(SeO4)(C3H8N6)]

RMS-DPI code:  2012-1-179-0
Scientific session:  F1. Mineralogical crystallogrpaphy and crystal chemistry
Author listing:  Tyshchenko D.V., Gurzhiy V.V., Krivovichev S.V.
Principal author:  Tyshchenko Darya Valer\'evna
Language:  Russian
Abstract - Summary 
(short description):
Single crystals of [(UO2)(SeO4)(H2SeO3)][(SeO4)(C3H8N6)] (1) were prepared by evaporation from 2 ml aqueous solution of uranyl nitrate, melamine and selenic acid. The unit cell parameters were determined by the least squares method. Compound (1) has a monoclinic symmetry, space group P21/c, a = 16.247(4) Å, b = 8.680(2) Å, c = 13.347(3)Å,  = 90.615(5) o, V = 1882.1(8) Å3. The crystal structure was solved by direct methods from X-ray diffraction data and refined by the least-squares method to R1 = 0.0317 (wR2 = 0.0388) for 4068 reflections with |Fo| ≥ 4σF.
Date of presentation:  09/10/2012
Presentation Place:  Mining University, foyer of the Assembly Hall
RMS-DPI code:  2012-1-179-0
Proceeedings volume 
in the RMS catalogue:
Mineralogy in whole space of the word.
File of proceedings 
 216 K
Status:  printed
Accepted:  28/08/2012
Published on-line:  05/11/2012
Permanent address of publication:
Contact author(s):  Tyshchenko, Darya Valer'evna

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