Structure of diethylammonium ethoxybis(diethylmonothiocarbamato)dioxouranate(VI), (C2H5)2NH2+[UO2((C2H5)2NCOS)2OC2H5

Abstract

Atomic parameters, distances, and angles are tabulated. The salt consists of (C/sub 2/H/sub 5/O)UO/sub 2/(SOCN(C/sub 2/H/sub 5/)/sub 2/)/sub 2/ anion and diethylammonium cation. The nitrogen atom of the cation, N(3), hydrogen bonds to the ethoxide oxygen atom, O(3), of one anion and to the uranyl oxygen atom, O(4), of another anion across the center of symmetry, to form a dimer of two formula units about the origin. The uranium atom is at the center of a pentagonal bipyramid and is heptacoordinate. The two uranyl oxygen atoms are at the apices of the bipyramid, and two sulfur and three oxygen atoms form an irregular pentagon in a plane about the uranium atom. The two sulfur atoms are adjacent to each other; the U--S distance averages 2.866 A and is comparable value of 2.80 A found in other such complexes. Three types of U--O distances are found in this structure; they are the uranyl-, ethoxide-, and carbamate-type bonds with distances of 1.78, 2.20, and 2.39 A, respectively. 1 figure, 3 tables.