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Journal of Coordination Chemistry Volume 61, 2008 - Issue 2
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Original Articles

Bidentate coordination of a diketo phosphorus ylide: synthesis and structure of [(C6H5)3PC(COCH3)(COC6H5)-κO,O′]UO2(NO3)2

B. Kalyanasundari Department of Chemistry, National College, Tiruchirappalli 620001, India
,
M. Baby Mariyatra School of Chemistry, Bharathidasan University, Tiruchirappalli 620024, India
&
K. Panchanatheswaran School of Chemistry, Bharathidasan University, Tiruchirappalli 620024, IndiaCorrespondence[email protected]
Pages 270-276 | Received 20 Nov 2006, Accepted 23 Dec 2006, Published online: 22 Sep 2010
 
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Abstract

A 1 : 1 chelate complex [(C6H5)3PC(COCH3)(COC6H5)-κO,O′]UO2(NO3)2 has been synthesized by reaction of (C6H5)3PC(COCH3)(COC6H5) with UO2(NO3)2 · 6H2O in methanol at room temperature and characterized by elemental analysis, spectroscopy as well as by single-crystal X-ray diffraction. The complex crystallizes in P21/n space group with a = 10.007(2) Å, b = 15.285(7) Å, c = 19.20(1) Å, β = 91.22(3)°, V = 2936(2) Å3, Z = 4, D c = 1.847 g cm−3. In the solid state structure, the dihedral angle [88.1(4)°] between the planes defined by the two quartets of atoms O1 O8 O2 O4 and O6 O5 O3 O7 is close to 90°, as expected for a triangulated dodecahedral geometry around uranium.

Acknowledgements

KP thanks Department of Science and Technology, New Delhi, India for financial support (SERC-SR/S1/IC-29/2003).

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