Crystal structure of di-[S-(2-aminoethyl)thiouronium] tribromocuprate dibromide, [C3H11N3S]2CuBr3][Br]2

(2-Bromoethyl)trimethylammonium bromide and thiourea: A comparative study of three crystal structures

“…5 (left) shows that the dication in 2 adopts an anti conformation with respect to the S1-C2 bond, with a torsion angle C1-S1-C2-C3 of À165.25(15)°, whereas the corresponding torsion in 2Á4 thiourea (right) amounts to 61.86(15)°. This difference in the soft rotational degree of freedom is reflected in a less compact overall shape of the dication in 2, with longer N1ÁÁÁN3 and N2ÁÁÁN3 distances (6.495(3) and 5.383(3) Å) than in the thiourea solvate (5.724 (2) [29] are anti conformation too, which the corresponding torsions are À89.0°and À74.6°, respectively, and the corresponding distances are 6.136, 4.508 and 5.854, 4.348 Å, respectively.…”