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1 2009

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Synthesis, Crystal Structure and DNA Binding Studies of Bis(piperidinium)bis-(N,N,N',N'-tetramethylethylenediammonium) Decavanadate(V) Tetrahydrate

Jiang M., Li Y. -T., Wu Z. -Y., Yan C. -W.

Polish Journal of Chemistry

2009

Vol. 83, nr 11

1849-1858

A new decavanadate compound consisting of one decavanadate polyanion [V10O28]6–, two protonated piperidinium cations [C5H12N]+, two doubly protonated N,N,N',N'- tetramethylethylenediammonium cat ions [C6N2H18]2+ and four lattice water molecules, namely, [(C5H12N)2][(C6N2H18)2][V10O28]×4H2O, has been synthesized and characterized by spectroscopic (IR, UV-vis and ESR) studies and single-crystal X-ray diffraction. It crystallizes in the monoclinic system, space group P21/n and Z = 2, with a = 11.1267(18) capital A, ring, b = 16.854(3) capital A, ring, c = 12.973(2) capital A, ring and beta = 95.426(2)°. The cat ions, an ions and lattice water molecules are assembled by hydrogen bonds, forming a three-dimensional supramolecular architecture. The DNA-binding property of the compound was preliminarily investigated by using fluorescence spectrum, and the results indicating that the interaction mode between the compound and herring sperm DNA (HS-DNA) might be groove binding with the quenching constant of 1.20×104. To the best of our knowledge, this is the first report about the DNA-binding study of decavanadate compounds.