The crystal structures of tetraphenylphosphonium octahalogenodiarsenate(III) and diantimonate(III) with acetonitrile, (PPh4)2[E2X8]•CH3CN (E = As, Sb; X = Cl, Br)

被引：8

作者：

Czado, W ^{[1
]}

Rabe, S ^{[1
]}

Müller, U ^{[1
]}

机构：

[1] Univ Gesamthsch Kassel, Fachbereich Biol Chem, D-34109 Kassel, Germany

来源：

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES | 1999年 / 54卷 / 02期

关键词：

octachlorodiarsenate(III); octachlorodiantimonate(III); octabromodiarsenate(III); crystal structure;

D O I：

10.1515/znb-1999-0218

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

(PPh4)(2)[As2Cl8] . CH3CN was obtained from PPh4Cl and S2Cl2 With As or As4S4 Or AsCl3 in acetonitrile. PPh4Cl, S2Cl2 and Sb2S3 yielded (PPh4)[Sb2Cl8] . CH3CN. PPh4Br and AsBr3 gave (PPh4)(2)[Sb2Br8] . CH3CN. AsCl2OPh (from AsCl3 and NaOPh) reacted with Ph4Br in acetonitrile in the presence of Na2Se, selenium, and HCl, affording (PPh4)(2)[As2Br4,2Cl3,8] . CH3CN. According to their X-ray crystal structure determinations, all products are isotypic (space group C2/c, Z=4). The centrosymmetric anions consist of two psi octahedra sharing an edge. In the [As2Br4,2Cl3,8](2-) ion the bridging positions are taken solely by bromine atoms, whereas Br and Cl atoms occupy the other halogen positions randomly.

引用

页码：288 / 290

页数：3

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