title: Octakis(3-propylammonium) octadecaiodopentaplumbate(II): a new layered stucture based on layered perovskites.
abstract: The title compound, (C3H10N)8[Pb5I18], crystallizes as an inorganic-organic hybrid. As such, the structure consists of two-dimensional sheets of corner- and face-sharing [PbI6]4- octahedra, separated by layers of 3-propylammonium cations, which hydrogen bond to the I atoms. The asymmetric unit contains six independent Pb atoms; four are on general positions and the other two are on special positions, viz. a centre of inversion and a twofold axis. The inorganic sheets show a never before seen motif.
authors.affiliation: School of Chemistry, University of the Witwatersrand, Private Bag 3, PO Wits 2050, South Africa. andy@hobbes.gh.wits.ac.za
authors.forename: David G
authors.initials: DG
authors.lastname: Billing
authors.forename: Andreas
authors.initials: A
authors.lastname: Lemmerer