title: Phase change in tetraphenylphosphonium perchlorate.
abstract: The title compound, C(24)H(20)P(+).ClO(4)(-), undergoes a sudden reversible phase change in the region of 173-180 K which involves ordering of three quarters of the perchlorate anions.
authors.affiliation: Department of Chemistry, PO Box 23, Monash University 3800, Australia. stuart.batten@sci.monash.edu.au
authors.forename: S R
authors.initials: SR
authors.lastname: Batten
authors.forename: A R
authors.initials: AR
authors.lastname: Harris
authors.forename: K S
authors.initials: KS
authors.lastname: Murray