Synthesis of main group polycations in molten and pseudo-molten GaBr3 media
2005 (English)In: European Journal of Inorganic Chemistry, ISSN 1434-1948, E-ISSN 1099-0682, no 24, 4907-4913 p.Article in journal (Refereed) Published
The prospects of synthesizing polycationic species using GaBr3 in benzene solution at room temperature have been investigated. The salts Bi-8[GaBr4](2), Sb-8[GaBr4](2) and Te-4- [Ga2Br7](2) have been isolated and characterized. The first two compounds are isotypic with Sb-8[GaCl4](2), crystallize in the space group Pna2(1), and feature square anti-prismatic E-8(2+) polycations (E = Sb, Bi). Unit-cell parameters for Bi-8[GaBr4](2) are a = 18.3014(10) angstrom, b = 10.3391(6) angstrom and c = 13.5763(7) angstrom, and for Sb-8[GaBr4](2); a = 18.096(2) angstrom, b = 10.1572(9) angstrom and c = 13.2168(10) angstrom. Te-4[Ga2Br7](2) crystallizes in the space group P2(1)/c with a = 10.1600(9) angstrom, b = 10.8314(9) angstrom, c = 13.8922(10) angstrom and beta = 99.182(7)degrees, and features a square-planar Te-4(2+) polycation. The compound Bi-5[GaBr4](3) has been synthesized from molten GaBr3 and characterized by using powder diffractometry in space group Fm-3c; a = 17.6263(8) angstrom. The structure model for this compound suggests the included Bi-5(3+) cations to be practically freely oriented within its cavities in the solid phase.
Place, publisher, year, edition, pages
2005. no 24, 4907-4913 p.
Antimony, Bismuth, Cluster compounds, Tellurium
IdentifiersURN: urn:nbn:se:kth:diva-5071DOI: 10.1002/ejic.200500161ISI: 000234237900007ScopusID: 2-s2.0-29344456611OAI: oai:DiVA.org:kth-5071DiVA: diva2:7776
QC 20101001. Uppdaterad från Submitted till Published (20101001). Tidigare titel: "Synthesis of Main Group Polycations in GaBr3–Benzene Media".2005-04-262005-04-262010-10-01Bibliographically approved