화학공학소재연구정보센터
Materials Research Bulletin, Vol.40, No.2, 307-314, 2005
Synthesis and crystal structure of triphosphate RbPrHP3O10
Crystals of RbPrHP3O10 have been grown by the flux technique and characterized by single-crystal X-ray diffraction. RbPrHP3O10 crystallizes in the triclinic PI space group with lattice parameters: a = 7.0655(5), b = 7.7791(4), c = 8.6828(6) Angstrom, alpha = 74.074(3), beta = 74.270(3), gamma = 82.865(2)degrees, V = 441.09(5) Angstrom(3), Z = 2. The crystal structure has been solved yielding a final R(F-2) = 0.0443 and Rw(F) = 0.1426 for 1955 independent reflections (F-o(2) greater than or equal to 2sigma(F-o(2))). The structure of RbPrHP3O10 consists of PrO8 polyhedra and P3O105- groups sharing oxygen atoms to form a two-dimensional framework; the PrO8 polyhedra form infinite chains by edge-sharing. Each Rb+ ion is bonded to 10 oxygen atoms, these ions are located between chains formed of (HP3O10)(4-). The energies of the vibrational modes of the crystal were obtained from measurements of the infrared spectrum. (C) 2004 Elsevier Ltd. All rights reserved.