Journalartikel

Jahr der Veröffentlichung: 1997

Seiten: 1189-1192

Zeitschrift: Chemische Berichte - recueil

Bandnummer: 130

Heftnummer: 9

ISSN: 0009-2940

DOI Link: https://doi.org/10.1002/cber.19971300904

Verlag: Wiley-VCH Verlag

Abstract: 
The reaction of Te, TeX4 and BiX3 [X = Cl, Br] in sealed, evacuated glass ampoules in the temperature range 170 --> 100 degrees C yields a variety of compounds composed of tellurium polycations and halobismutate anions. Two of these have been identified by crystal structure analyses as Te-4[Bi6Cl20] (triclinic, , a = 738.8(2), b = 875.1(2), c = 1389.1(6) pm, a = 87.89(2), beta = 82.87(4), gamma = 87.89(2)degrees, Z = 1) and Te-4[Bi2Br8] (triclinic, , a = 726.0(4), b = 773.7(4), c = 901.8(5) pm, alpha = 92.95(2), beta = 102.23(2), gamma = 92.87(2)degrees, Z = 1). Both compounds were obtained as black crystals with a violet lustre and contain square-planar Te-4(2+) cations. Te-4[Bi6Cl20] contains a two-dimensional polymeric anion [Bi6Cl20](2-) made up of corner-and edge-sharing BiCl6 octahedra with attached BiCl3 groups. The Bi-Cl distances vary over a very wide range from 245 to 334 pm. Te-4[Bi2Br8] consists of a one-dimensional chain [BiBr2Br4/2-](n) of cis-edge-connected BiBr6 octahedra with Bi-Br distances ranging from 264 to 318 pm.

Harvard-Zitierstil: Beck, J., Kasper, M. and Stankowski, A. (1997) Tellurium polycations stabilized by halogenobismutates - Syntheses and crystal structures of Te-4[Bi6Cl20] and Te-4[Bi2Br8], Chemische Berichte - recueil, 130(9), pp. 1189-1192. https://doi.org/10.1002/cber.19971300904

APA-Zitierstil: Beck, J., Kasper, M., & Stankowski, A. (1997). Tellurium polycations stabilized by halogenobismutates - Syntheses and crystal structures of Te-4[Bi6Cl20] and Te-4[Bi2Br8]. Chemische Berichte - recueil. 130(9), 1189-1192. https://doi.org/10.1002/cber.19971300904