Ionothermal synthesis, structure, and bonding of the Catena-heteropolycation1∞ [Sb2Se2]+

Groh MF, Breternitz J, Ahmed E, Isaeva A, Efimova A, Schmidt P, Ruck M (2015)

Publication Type: Journal article

Publication year: 2015

Journal

Zeitschrift für Anorganische und Allgemeine Chemie Wiley

Book Volume: 641

Pages Range: 388-393

Journal Issue: 2

DOI: 10.1002/zaac.201400543

Abstract

The reaction of antimony and selenium in the Lewis-acidic ionic liquid 1-butyl-3-methyl-imidazolium tetrachloridoaluminate, [BMIm]Cl•4.7AlCl3, yielded dark-red crystals of [Sb2Se2]AlCl4. The formation starts above 160 ° C; at about 190 ° C, irreversible decomposition takes place. The compound crystallizes in the triclinic space group P 1¯ with a = 919.39(2) pm, b = 1137.92(3) pm, c = 1152.30(3) pm, α = 68.047(1)° , β = 78.115(1)° , γ = 72.530(1)° , and Z = 4. The structure is similar to that of [Sb2Te2]AlCl4 but has only half the number of crystallographically independent atoms. Polycationic chains 1∞ [Sb2Se2]+ form a pseudo-hexagonal arrangement along [011¯] ], which is interlaced by tetrahedral AlCl4 - groups. The catena-heteropolycation 1∞ [Sb2Se2]+ is a sequence of three different four-membered [Sb2Se2 ] rings. The chemical bonding scheme, established from the topological analysis of the real-space bonding indicator ELI-D, includes significantly polar covalent bonding in four-member rings withinthepolycation.Theringsareconnectedintoaninfinitechainbyhomonuclear non-polar Sb-Sb bonds and highly polar Sb-Se bonds. Half of the selenium atoms are three-bonded.

Involved external institutions

Technische Universität Dresden DE Germany (DE) Brandenburgische Technische Universität Cottbus-Senftenberg (BTU) DE Germany (DE)

How to cite

APA:

Groh, M.F., Breternitz, J., Ahmed, E., Isaeva, A., Efimova, A., Schmidt, P., & Ruck, M. (2015). Ionothermal synthesis, structure, and bonding of the Catena-heteropolycation1∞ [Sb2Se2]+. Zeitschrift für Anorganische und Allgemeine Chemie, 641(2), 388-393. https://doi.org/10.1002/zaac.201400543

MLA:

Groh, Matthias F., et al. "Ionothermal synthesis, structure, and bonding of the Catena-heteropolycation1∞ [Sb2Se2]+." Zeitschrift für Anorganische und Allgemeine Chemie 641.2 (2015): 388-393.

BibTeX: Download