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Room Temperature Synthesis and Structural Characterization of Sn(O3PCH2CH3): A Layered Phase of the Sn(II)-Organophosphonate System

✍ Scribed by Pamela J. Zapf; David J. Rose; Robert C. Haushalter; Jon Zubieta

Publisher: Elsevier Science
Year: 1997
Tongue: English
Weight: 300 KB
Volume: 132
Category: Article
ISSN: 0022-4596
DOI: 10.1006/jssc.1997.7370

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✦ Synopsis

The title compound, Sn(O 3 PCH 2 CH 3 ), (1), was synthesized from a mixture of SnF 2 , CH 3 CH 2 PO 3 H 2 , and H 2 O in the mole ratio 1:0.85:1741 at 25°C for 1 h. Phosphonate (1) crystallizes in the orthorhombic space group Pbca with a ‫؍‬ 7.785(2), b ‫؍‬ 7.450(1), c ‫؍‬ 20.026(4) A s , V ‫؍‬ 1161.5(6) A s 3 , Z ‫؍‬ 8, and R ‫؍‬ 0.0797. The two-dimensional structure of ( 1) is composed of corner sharing {SnO 3 } pyramids and {O 3 PC} tetrahedra that alternate to form four-and eight-member polyhedral rings within the layers. The ethyl groups of the phosphonate tetrahedra are directed outward from both faces of the layer, effectively forming inorganic layers alternating with organic bilayers.

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