Natarajan, Srinivasan ; Ayyappan, S. ; Cheetham, Anthony K. ; Rao, C. N. R. (1998) Novel open-framework tin (II) phosphate materials containing Sn-O-Sn linkages and three-coordinated oxygens Chemistry of Materials, 10 (6). pp. 1627-1631. ISSN 0897-4756
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Official URL: http://pubs.acs.org/doi/abs/10.1021/cm9708168
Related URL: http://dx.doi.org/10.1021/cm9708168
Abstract
Two new open-framework tin(II) phosphate materials have been synthesized hydrothermally and their structures elucidated by single-crystal X-ray diffraction. These materials exhibit an entirely new building motif, unknown in phosphate-based materials, viz., vertex-sharing truncated square-pyramidal SnO4 units, in addition to the trigonal-pyramidal SnO3 units. The connectivity between the SnO3, SnO4, and PO4 units is such that Sn-O-Sn linkages are observed for the first time. The networking creates three-coordinated oxygens in the structure. Crystal data for compound I, [Sn3(PO4)2(OH)]-· 0.5[(NH3)(CH2)6(NH3)]+: monoclinic, a = 9.315(2) Å, b = 16.806(1) Å, c = 9.513(3) Å, β = 111.03(1)°, V = 1390.0(5), Z = 4, M = 622.13(1), Dcalc = 2.973 g cm-3, Mo Kα, RF = 0.039. Crystal data for compound II, [Sn3(PO4)2(OH)]-·0.5[(NH3)(CH2)8(NH3)]+: orthorhombic, a = 10.390(1) Å, b = 16.087(1) Å, c = 18.717(1) Å, V = 2849.3(1), Z = 4, M = 636.16(1), Dcalc = 2.595 g cm-3, Mo Kα, RF = 0.07.
Item Type: | Article |
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Source: | Copyright of this article belongs to American Chemical Society. |
ID Code: | 27694 |
Deposited On: | 11 Dec 2010 08:25 |
Last Modified: | 10 Jun 2011 09:54 |
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