SYNTHESIS AND CRYSTAL-STRUCTURE OF [(PH2P C2H4PPH2)N]BR

Authors
KUNKEL F GOESMANN H DEHNICKE K
Citation
F. Kunkel et al., SYNTHESIS AND CRYSTAL-STRUCTURE OF [(PH2P C2H4PPH2)N]BR, Zeitschrift fur Naturforschung. B, A journal of chemical sciences, 52(10), 1997, pp. 1287-1290
Citations number
12
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
Journal title
Zeitschrift fur Naturforschung. B, A journal of chemical sciences → ACNP
ISSN journal
09320776
Volume
52
Issue
10
Year of publication
1997
Pages
1287 - 1290
Database
ISI
SICI code
0932-0776(1997)52:10<1287:SACO[C>2.0.ZU;2-#
Abstract
The cyclo-phosphazenium bromide [(Ph2PC2H4PPh2)N]Br has been prepared by the reaction of bromine with Ph2PC2H4PPh2NSiMe3 and subsequent elim ination of BrSiMe3 in boiling acetonitrile. According to a crystal str ucture determination the compound contains bromide ions and cations wi th a P2C2N heterocycle in a twist conformation with PN bond lengths of 160.6(3) and 161.5(3) pm. Space group Pna2(1), Z = 4, lattice dimensi ons at -70 degrees C: a = 1702.5(3), b = 1280.8(3), c = 1056.9(2) pm, R = 0.030.