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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 26, Number 4
BKCSDE 26(4)
April 20, 2005

Title	Crystal Structure and Molecular Stereochemistry of Novel Polymeric Cu₂(DMP)₄(DMSO) as a Platform for Phosphate Diester Binding
Author	Massoud Rafizadeh, Reza Tayebee, Vahid Amani, Mohammad Nasseh
Keywords	Dimethyl phosphate, Copper, Dimethyl sulfoxide, Synthesis, Structure
Abstract	Treatment of a solution of CuCl2 in dimethyl phosphate (DMP) with DMSO under nitrogen atmosphere afforded to a light blue fluorescence powder. Slow evaporation of H2O-DMSO solution of this powder resulted in blue-sky crystals of a new polymeric Cu(II) complex, with a unit cell composed of Cu2(DMP)4(DMSO), (1). The crystal and molecular structure of the complex acquired crystallographically. Compound (1) crystallizes in the monoclinic space group P21/n with a = 12.8920(11) A, b = 13.1966(11) A, c = 14.7926(13) A, α = 90o, β = 98.943(2)o, γ = 90o, V= 2486.1(4) A3, and Z = 4. A square pyramidal environment for the metal center was established by coordination of oxygen atoms of four bridging DMP ligands in the basal positions and binding a tri-centered oxygen atom of DMSO in the apical disposition of Cu(II). The sixth position was also affected by a weak interaction with the sulfur atom of another DMSO. The phosphorous atom in the bridging DMP was arranged in a deformed tetrahedron with (gg) conformation for methyl esters with C2v symmetry.
Page	594 - 598
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