Structure of Pb{sup II}Sn{sup IV}(PO{sub 4}){sub 2}: Stereochemical activity of the lead II lone pair
Journal Article
·
· Journal of Solid State Chemistry
- Univ. Pierre et Marie Curie, Paris (France). Lab. de Cristallochimie du Solide
Flux-grown single crystals of the new compound PbSn(PO{sub 4}){sub 2} have been studied by X-ray diffraction. It crystallizes in monoclinic space group P2{sub 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){degree}, Z = 4. Its structure is related to the yavapaiite type with a skeleton made up of corner-linked SnO{sub 6} octahedra and PO{sub 4} tetrahedra, but the lead atoms are located in double tunnels instead of sheets. An active Pb{sup II} lone pair has been localized from electrostatic interactions in order to explain this original structure.
- OSTI ID:
- 642215
- Journal Information:
- Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 2 Vol. 137; ISSN 0022-4596; ISSN JSSCBI
- Country of Publication:
- United States
- Language:
- English
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