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Synthesis and Structure of Cs[(VO)2(OH)(O3PCH2CH2PO3)]: A Two-Dimensional Solid with Pillared Layers

✍ Scribed by Grant H. Bonavia; Robert C. Haushalter; Sichu Lu; Charles J. O'Conner; Jon Zubieta

Publisher: Elsevier Science
Year: 1997
Tongue: English
Weight: 343 KB
Volume: 132
Category: Article
ISSN: 0022-4596
DOI: 10.1006/jssc.1997.7433

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✦ Synopsis

The title compound Cs[(VO) 2 (OH)(O 3 PCH 2 CH 2 PO 3 )] 1 was synthesized hydrothermally from a mixture of CsVO 3 , H 2 O 3 PCH 2 CH 2 PO 3 H 2 , and H 2 O in the mole ratio 1 : 1.22 : 535 and heated to 200°C for 48 hr. Phosphonate 1 is formed in 45% yield and crystallizes in the monoclinic space group P2 1 /c with a ‫؍‬ 11.798(2) A > , b ‫؍‬ 11.056(2) A > , c ‫؍‬ 8.682(2) A > , ‫؍‬ 104.92(3)°, V ‫؍‬ 1094.3(4) A > 3 , Z ‫؍‬ 4, and R : 0.054. The framework consists of complimentary inorganic V/ P/O layers joined by ethylenediphosphonate ligands, creating an inorganic bilayer. The bilayers are seperated by an interlamellar region of Cs ؉ cations. There are two unique VO 5 square pyramids from which the inorganic V/ P/O layers are constructed.

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