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Issue 41, 2014
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Synthesis, structure, photocatalytic and magnetic properties of an oxo-bridged copper dimer

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Abstract

Dimeric copper complex, [GuH]4[Cu2II(Cit)2]·2H2O (where GuH = monoprotonated guanidine and Cit = citrate anion) was synthesized solvothermally and characterized by single crystal X-ray diffraction. The Cu atoms are bridged by alkoxide oxygen atoms of the citrate ligand, forming the dimer. The Cu atom adopts a distorted square pyramidal geometry. Two CuO5 units are connected edge-wise to form the dimer, which is capped by the citrate ligand. This molecular dimer is strongly H-bonded with guanidine cation and a water molecule to form a supramolecular structure. The optical band gap energy data exhibit its semiconductor behavior. We have explored this material as a photocatalyst for the degradation of organic dye. The magnetic measurements show that compound 1 behaves like a paramagnet. Detailed theoretical investigations reveal that inter-molecular H-bonding is responsible for the stability of this structure.

Graphical abstract: Synthesis, structure, photocatalytic and magnetic properties of an oxo-bridged copper dimer

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Publication details

The article was received on 04 Mar 2014, accepted on 10 Apr 2014 and first published on 10 Apr 2014


Article type: Paper
DOI: 10.1039/C4RA01886A
Author version available: Download Author version (PDF)
Citation: RSC Adv., 2014,4, 21195-21200
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    Synthesis, structure, photocatalytic and magnetic properties of an oxo-bridged copper dimer

    R. Ghosh, A. K. S., S. Md. Pratik, A. Datta, R. Nath and S. Mandal, RSC Adv., 2014, 4, 21195
    DOI: 10.1039/C4RA01886A

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