Journal article

Publication year: 1995

Pages: 265-268

Journal: Zeitschrift für Kristallographie

Volume number: 210

Issue number: 4

ISSN: 0044-2968

DOI Link: https://doi.org/10.1524/zkri.1995.210.4.265

Publisher: Oldenbourg Verlag

Abstract: 
The reaction of Se, I-2 and WCl6 in the molar ratio 12:1:2 in a sealed evacuated ampoule at 423 K yields (Se6I+)(n) . n(WCl6-) in quantitative yield as black, moisture sensitive crystals with a bronze luster. The compound crystallizes triclinic (space group P ($) over bar 1) with the lattice constants a = 670.1(3) pm, b = 741.7(5) pm, c = 803.5(5) pm, alpha = 92.18(5)degrees, beta = 97.71(4)degrees, gamma = 95.48(4)degrees. The structure was refined to R(w)(F-2) = 9.2% based on 2248 unique reflections and R(\F\) = 3.7% based on 1912 reflections with \F\ > 4 sigma(F). The one-dimensional polymeric cation (Se6I+)(n) is built of Se-6 rings in the chair conformation which are connected by iodine atoms bound to the Se-6 rings in the 1,4 positions and forming linear bridges. The WCl6- anions form slightly distorted octahedra. The structure is compared with that of (Se6I)MF(6) (M = As, Sb) with a nearly isostructural polycation.

Harvard Citation style: BECK, J. and MARSCHALL, T. (1995) A POLYMERIC (IODO)SELENIUM CATION IN THE STRUCTURE OF (SE6I)WCL6, Zeitschrift für Kristallographie, 210(4), pp. 265-268. https://doi.org/10.1524/zkri.1995.210.4.265

APA Citation style: BECK, J., & MARSCHALL, T. (1995). A POLYMERIC (IODO)SELENIUM CATION IN THE STRUCTURE OF (SE6I)WCL6. Zeitschrift für Kristallographie. 210(4), 265-268. https://doi.org/10.1524/zkri.1995.210.4.265