STRUCTURE OF (PBSNIV)-SN-II(PO4)(2) - STEREOCHEMICAL ACTIVITY OF THE LEAD-II LONE-PAIR

Authors
MORIN E WALLEZ G JAULMES S COUTURIER JC QUARTON M
Citation
E. Morin et al., STRUCTURE OF (PBSNIV)-SN-II(PO4)(2) - STEREOCHEMICAL ACTIVITY OF THE LEAD-II LONE-PAIR, Journal of solid state chemistry (Print), 137(2), 1998, pp. 283-288
Citations number
17
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Physical
Journal title
Journal of solid state chemistry (Print) → ACNP
ISSN journal
00224596
Volume
137
Issue
2
Year of publication
1998
Pages
283 - 288
Database
ISI
SICI code
0022-4596(1998)137:2<283:SO(-SA>2.0.ZU;2-N
Abstract
Flux-grown single crystals of the new compound PbSn(PO4)(2) have been studied by X-ray diffraction. It crystallizes in monoclinic space grou p P2(1)/n (No. 14), with cell parameters a = 4.861(6) Angstrom, b = 14 .75(2) Angstrom, c = 8.80(2) Angstrom, beta = 93.0(1)degrees, Z = 4, I ts structure is related to the yavapaiite type with a skeleton made up of corner-linked SnO6 octahedra and PO4 tetrahedra, but the lead atom s are located in double tunnels instead of sheets. An active Pb-11 lon e pair has been localized from electrostatic interactions in order to explain this original structure. (C) 1998 Academic Press.