title: Stepwise synthesis of a stable diphosphasilirane and its unexpected dimerization.
abstract: The synthesis of the thermally stable bicyclic diphosphasilirane O(SiiPr2P)2SiiPr2 (4) was achieved via oxidation of the alkaline earth metal substituted cyclic diphosphanide 3 with 1,2-dibromoethane. Nonetheless, during extended storage at low temperature, impurity induced rearrangement in favour of the dimeric species [O(SiiPr2P)2SiiPr2]2 (5) is observed.
authors.affiliation: Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften (WZMW), Philipps-Universität Marburg, Hans-Meerwein-Straße 4, 35043 Marburg, Germany. haenisch@chemie.uni-marburg.de.
authors.forename: Kirsten
authors.initials: K
authors.lastname: Reuter
authors.forename: Carsten
authors.initials: C
authors.lastname: von Hänisch