Organically Templated Vanadyl Selenites with Layered Structures
Two layered vanadyl selenites with the compositions, [DABCOH2]0.5[(VIVO) (HSeO3)(SeO3)]·H2O, I, and [enH2][(VIVO)2(VVO) O2(SeO3)3]-·1.25H2O), II, have been prepared by the reaction of NaVO3 with SeO2 or H2SeO4 under hydrothermal conditions in the presence of organic amines. Crystal data: I, orthorhombic, space group Pbcn (No. 60), a = 6.3152(3) Å, b = 18.1918(8) Å, c = 17.7172(8) Å, V = 2035.4(2) Å3, Z = 8, R1(all data) = 0.0368; II, triclinic, space group P1 (No.2), a = 6.3406(2) Å, b = 10.2085(3) Å, c = 13.2551(10) Å, ? = 101.238(2)°, ? = 96.503(2)°, ? = 104.332(2)°, V = 803.47(4) Å3, Z = 2, R1 (all data) = 0.0814. While I contains the ladder motif, commonly found in open-framework metal phosphates, II is formed by a secondary building unit composed of a V4O18 cluster along with SeO3 and VO5 groups. The study demonstrates that the selenite unit can be fruitfully exploited to design interesting open-framework structures.
I. Pasha et al., "Organically Templated Vanadyl Selenites with Layered Structures," Inorganic Chemistry, vol. 42, no. 2, pp. 409-415, American Chemical Society (ACS), Jan 2003.
The definitive version is available at http://dx.doi.org/10.1021/ic020479r
Keywords and Phrases
selenite; unclassified drug; vanadyl derivative; vanadyl selenite, article; chemical structure; crystal structure; heating; infrared spectroscopy; reaction analysis; stereochemistry; structure analysis; synthesis; X ray powder diffraction
International Standard Serial Number (ISSN)
Article - Journal
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