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Title: Synthesis and structural characterization of dinuclear copper(II) complex [Cu<sub>2</sub>(C<sub>2</sub>O<sub>4</sub>)(2,2'-bpy)<sub>2</sub>(H<sub>2</sub>O)<sub>2</sub>]·(NO<sub>3</sub>)<sub>2</sub>
Authors: Wen, L R
Li, M
Wang, W
Zhao, G L
Li, X M
Zhang, S S
Xu, H
Ouyang, P K
Issue Date: May-2005
Publisher: CSIR
Series/Report no.: <b>Int</b>.<b>Cl</b>.<b><sup>7</sup> C 07 G 3/00</b>
Abstract: A new copper(II) complex [Cu<sub>2</sub>(C<sub>2</sub>O<sub>4</sub>)(2,2'-bpy)<sub>2</sub>(H<sub>2</sub>O)<sub>2</sub>]·(NO<sub>3</sub>)<sub>2</sub> has been synthesized by the reaction of copper nitrate with 2,2'-bipyridine and potassium oxalate in aqueous solution. X-ray diffraction analysis indicates that the title complex crystallizes in monoclinic system, space group PZ<sub>1</sub>/n with a = 7.717(3) Å, b = 10.221(3) Å, c = 16.582(5) Å, <img src='/image/spc_char/beta.gif' border=0> = 100.110(5)°, V = 1287.5(7) Å<sup>3</sup>, Mr =687.53, Z = 2, Dc = 1.773 g/cm<sup>3</sup>, <img src='/image/spc_char/lamda.gif' border=0> = 0.71073 Å, <img src='/image/spc_char/micro.gif' border=0>(MoK<img src='/image/spc_char/alpha.gif' border=0>) = 1.729 mm<sup>-1</sup> and F(000) = 696. The final R and <i>w</i>R factors for the observed reflections with I>2σ(I) are 0.0255 and 0.0610, respectively. The dinuclear complex consists of a coordination cation [Cu<sub>2</sub>(C<sub>2</sub>O<sub>4</sub>) (2,2'-bpy)<sub>2</sub>(H<sub>2</sub>O)<sub>2</sub>]<sup>2+</sup> and two NO<sub>3</sub><sup>-</sup> anions. Each copper(II) atom is five-coordinated in a distorted tetragonal pyramidal geometry.
Description: 1098-1100
ISSN: 0975-0983(Online); 0376-4699(Print)
Appears in Collections:IJC-B Vol.44B(05) [May 2005]

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