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Pentastrontium Tris[tetraoxovanadate(V)] catena ‐Monoxocuprate(I), Sr 5 (VO 4 ) 3 (CuO) – An Apatite Derivative with Inserted Linear 1Ë [CuO] 1– Chains
Author(s) -
CarrilloCabrera Wilder,
von Schnering Hans Georg
Publication year - 1999
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(199902)625:2<183::aid-zaac183>3.0.co;2-6
Subject(s) - corundum , apatite , chemistry , derivative (finance) , metal , crystal structure , crystallography , copper , hexagonal crystal system , materials science , mineralogy , organic chemistry , financial economics , economics
Sr 5 (VO 4 ) 3 (CuO) was prepared via solid state reactions from mixed powders of the metal oxides or carbonates in corundum crucibles in air (1173–1740 K). The compound is transparent and stable in air. The color changes with the preparation temperature from light gray (1173 K) to gray (1740 K). The crystal structure (space group P 6 3 / m , No. 176; Z = 2; a = 10.126 Å, c = 7.415 Å) is a derivative of the apatite Ca 5 (PO 4 ) 3 OH, and is characterized by isolated [VO 4 ] 3– anions (d(V–O) = 1.710 Å) and infinite linear 1∞ [CuO] 1– chains (d(Cu–O) = 1.854 Å) inserted in the channels parallel to the hexagonal axis. The compound prepared at 1740 K contains vacancies at the copper and oxygen positions of the linear chains (about 10% and 5%, respectively).