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Synthesis and Crystal Structure of Pb 3 O 2 (SeO 3 )
Author(s) -
Krivovichev Sergey V.,
Avdontseva Evgeniya Yu.,
Burns Peter C.
Publication year - 2004
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/zaac.200300291
Subject(s) - orthorhombic crystal system , tetrahedron , crystallography , crystal structure , chemistry , oxygen atom , atom (system on chip) , hydrothermal synthesis , hydrothermal circulation , molecule , geology , computer science , organic chemistry , seismology , embedded system
Single crystals of Pb 3 O 2 (SeO 3 ) have been prepared hydrothermally at 230 °C. The structure (orthorhombic, Cmc 2 1 , a = 10.529(2), b = 10.722(2), c = 5.7527(12)Å, V = 649.5(2)Å 3 ) has been solved by direct methods and refined to R 1 = 0.059 on the basis of 615 unique observed reflections (| F o | = 4σ F ). The structure is based upon double [O 2 Pb 3 ] 2+ chains of edge‐sharing [OPb 4 ] 6+ tetrahedra. These [O 2 Pb 3 ] 2+ chains run parallel to [001], and their planes are parallel to (010). The pyramidal (SeO 3 ) 2— anions are located between the chains; their triangular oxygen atom bases lie parallel to (001) and all (SeO 3 ) 2— groups are pointing in the same direction. A short compilation of [O 2 M 3 ] chains of oxocentred M 4 tetrahedra in minerals and inorganic compounds is provided.