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Synthesis and Structure of Lithium Cadmium Selenite Hydroxide, LiCd 2 (SeO 3 ) 2 (OH)
Author(s) -
Johnston Magnus G.,
Harrison William T. A.
Publication year - 2002
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 - 10.1002/1521-3749(200208)628:8<1913::aid-zaac1913>3.0.co;2-o
Subject(s) - octahedron , crystallography , chemistry , monoclinic crystal system , crystal structure , hydrogen bond , isostructural , infrared spectroscopy , single crystal , lithium (medication) , cadmium , stereochemistry , molecule , organic chemistry , medicine , endocrinology
The new compound LiCd 2 (SeO 3 ) 2 (OH) has been hydrothermally synthesized and characterized by single‐crystal X‐ray diffraction and IR spectroscopy. It is built up from a network of edge‐ and vertex‐sharing pyramidal [SeO 3 ] 2— groups, distorted CdO 6 octahedra, and CdO 7 monocapped trigonal prisms. The cadmium‐centred groups form infinite columns, onto which Se atoms (as [SeO 3 ] 2— groups) are grafted. Cross‐linking between the columns results in a three‐dimensional framework which encapsulates [100] channels occupied by the tetrahedrally‐coordinated lithium cations. The H atom of the hydroxyl group appears to participate in a weak, bifurcated, hydrogen bond. Crystal data: LiCd 2 (SeO 3 ) 2 (OH), M r = 502.67, monoclinic, P 2 1 /c (No. 14), a = 5.8184 (3)Å, b = 10.2790 (5)Å, c = 11.5021 (5)Å, β = 90.446(1)°, V = 687.89 (9)Å 3 , Z = 4, R ( F ) = 0.021, wR ( F 2 ) = 0.046.