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Synthesis and structure of a silver(I) complex {[Ag(L) (NO)](NO)(CHCl) } [L = 2,3-bis(pyrimidine-2-thiomethyl)quinoxaline]

Journal of Chemical Crystallography, ISSN: 1074-1542, Vol: 38, Issue: 10, Page: 749-753
2008
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The reaction of the dithioether ligand, 2,3-bis(pyrimidine-2-thiomethyl) quinoxaline (L) with AgNO, leads to the formation of a novel complex {[Ag(L)(NO)](NO )(CHCl)}n 1, which has been characterized by single-crystal X-ray diffraction analysis: monoclinic, space group C2/c, with a = 34.741(7), b = 9.930(2), c = 17.004(4) Å, β = 106.497(6)° and V = 5625(2) Å. Complex 1 consists of 2D {[Ag (L)(NO)]}n cations, uncoordinated NO anions and CHCl solvent molecules. In 1, there exist three crystallographic independent Ag centers, which adopt different coordination geometries. There exist π-π stacking interactions in the complex and these weak interactions further stabilize the crystal structure in the solid state. The coordination feature of the ligand has been investigated by DFT calculations. © 2008 Springer Science+Business Media, LLC.

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