Asian Journal of Research in Chemistry

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Single Crystal EPR and X-Ray Studies of Exchange Interactions in Hexaaquocopper (II) Picrylsulphonate Tetrahydrate


Affiliations
1 Department of Chemistry, NMSSVN College, Nagamalai, Madurai-625019, Tamilnadu, India
2 Department of Chemistry, ANJA College, Sivakasi, Tamilnadu, India
3 Department of Physics, Mahendra Arts and Science College, Kalippatti, Namakkal-637501, Tamilnadu, India
     

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Single crystals of hexaaquocopper(II) picrylsulphonate tetrahydrate, [Cu(H2O)6(picsul)2.4H2O and the corresponding copper(II) doped zinc and cadmium analogues have been prepared and subjected to EPR studies. X-ray diffraction studies of the pure complex reveal the structure to be triclinic and z=1, with a two dimensional Cu-picsul-Cu-picsul-chain running along b-axis, super exchange interactions are taking place through the chains, linked by H-bonds from uncoordinated water. The line width and line shape analysis indicate the system to be a quasi two dimensional one. A probe into the study of the metal ligand bonding has also been made.

Keywords

Electron Paramagnetic Resonance, Metal Ligand, Line Width, Line Shape.
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  • Single Crystal EPR and X-Ray Studies of Exchange Interactions in Hexaaquocopper (II) Picrylsulphonate Tetrahydrate

Abstract Views: 196  |  PDF Views: 2

Authors

K. Vijayaraj
Department of Chemistry, NMSSVN College, Nagamalai, Madurai-625019, Tamilnadu, India
A. Jawahar
Department of Chemistry, NMSSVN College, Nagamalai, Madurai-625019, Tamilnadu, India
R. Anantharam
Department of Chemistry, ANJA College, Sivakasi, Tamilnadu, India
M. Kumara Dhas
Department of Physics, Mahendra Arts and Science College, Kalippatti, Namakkal-637501, Tamilnadu, India

Abstract


Single crystals of hexaaquocopper(II) picrylsulphonate tetrahydrate, [Cu(H2O)6(picsul)2.4H2O and the corresponding copper(II) doped zinc and cadmium analogues have been prepared and subjected to EPR studies. X-ray diffraction studies of the pure complex reveal the structure to be triclinic and z=1, with a two dimensional Cu-picsul-Cu-picsul-chain running along b-axis, super exchange interactions are taking place through the chains, linked by H-bonds from uncoordinated water. The line width and line shape analysis indicate the system to be a quasi two dimensional one. A probe into the study of the metal ligand bonding has also been made.

Keywords


Electron Paramagnetic Resonance, Metal Ligand, Line Width, Line Shape.