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Silicophosphates of Rhodium and Indium
Author(s) -
Hanawa Masafumi,
Kobayashi Tomoyuki,
Imoto Hideo
Publication year - 2000
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/(sici)1521-3749(200001)626:1<216::aid-zaac216>3.0.co;2-o
Subject(s) - rhodium , chemistry , crystallography , crystal structure , trigonal crystal system , indium , octahedron , single crystal , hexagonal crystal system , transition metal , group (periodic table) , catalysis , organic chemistry , biochemistry
Single crystals of Rh(Si 2 O)(PO 4 ) 3 and In 4 (Si 2 O) · (PO 4 ) 6 were prepared by chemical transport reactions in silica tubes and their structures were determined. Crystal data of Rh(Si 2 O)(PO 4 ) 3 : trigonal, space group P 3 c 1, a = 8.088(3) Å, c = 8.740(2) Å, Z = 2, R ( F 2 ) = 0.0379, R w ( F 2 ) = 0.0518 for 601 unique reflections. In 4 (Si 2 O)(PO 4 ) 6 : hexagonal, space group P 6 3 / m , a = 8.5149(10) Å, c = 7.7481(12) Å, Z = 1, R ( F 2 ) = 0.0436, R w ( F 2 ) = 0.0522 for 509 unique reflections. Both of the compounds have hexagonal close packed array of phosphate groups with metal atoms and SiOSi units in the octahedral interstices, where the SiOSi units show occupational disorder. The structure of the indium compound is considered to be a disordered structure of the reported Mo 4 Si 2 P 6 O 13 structure, and contains confacial bioctahedral units.