A triclinic polymorph of cyclo -tetra-μ-thiosaccharinato- κ8S :S -tetrakis[(triphenylphosphane-κP )silver(I)]

DENNEHY MARIANA; ELEONORA FREIRE; RICARDO BAGGIO

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS

WILEY-BLACKWELL PUBLISHING, INC

Lugar: Londres; Año: 2012 vol. 68 p. 17 - 20

0108-2701

The triclinic structure of the title compound, cyclo-tetrakis(-1,1-dioxo-16,2-benzothiazole-3-thiolato-2S:S)tetrakis[(triphenylphosphane-P)silver(I)], [Ag4(C7H4NO2S2)4(C18H15-P)4], is a polymorph of the previously reported monoclinicstructure [Dennehy, Mandolesi, Quinzani & Jennings (2007).Z. Anorg. Allg. Chem. 633, 2746–2752]. In both polymorphs,the complex lies on a crystallographic inversion centre and thebond distances are closely comparable. Some differences canbe found in the interatomic angles and torsion anglesinvolving the inner Ag4S4 skeleton. The polymorphs containessentially identical two-dimensional layers, but with differentlayer stacking arrangements. In the triclinic form, all layers arerelated by lattice translation, while in the monoclinic formthey are arranged around glide planes so that adjacent layersare mirrored with respect to each other.