Synthesis and Identification of N-[(2-pyridyl)methyliden]-6-Coumarin Complex of Pt(IV)

Coumarin is found in a variety of plants such as Tonka bean, Lavender, sweet clover grass, Licorice and also occurs in food exists plants such as strawberries, apricots, cherries, cinnamon. Coumarin derivatives have blood-thinning, anti-fungicidal, anti-tumor and anticoagulant activities. Photophysics and photochemistry of coumarin derivatives are also important.[1] With reaction between 6-Aminocoumarin and pyridine-2-carboxaldehyde we synthesized N-[(2-pyridyl)methyliden]-6-coumarin (L) [2,3]. The ligand, L added to hexachloroplatinic acid to synthesize a Pt(IV) complex of formula [Pt(L)₂]Cl₆ and [Pd(L)₂]Cl₂. On the other hand, the reaction in the attendance of pyrocatechol has isolated [Pt(L)(1,2-dihydroxybenzene)₂]Cl₆. The compound is characterized by FTIR, UV–Vis and ¹H NMR spectroscopic data. 

References

[1] J.N. Deams, G.A. Crosby, J. Phys. Chem. 75 (1971) 991.

[2] B. Valuer, Molecular Fluorescence: Principles and Applications, Wiley–VCH,

Weinheim, 2001.

[3] Suman Roy , Tapan Kumar Mondal , Partha Mitra , Elena Lopez Torres , Chittaranjan Sinha , Polyhedron 30 (2011) 913.