Synthesis, characterisation, crystal structure and biological activity of metal (II)‎ complexes with theophylline

Abstract EN

-Three metal complexes with empirical formulae [Mn(theop)2(H2O)4] (1), [Co(theop)2(H2O)4] (2), [Ni(theop)2(H2O)4] (3), (where: theop = theophylline) were synthesized and characterized by elemental analysis, FTIR- spectroscopy and thermal decomposition techniques.

Their crystal structures were determined by single crystal Xray diffraction analysis.

Complexes are isomorphous and crystallise in the monocyclic space group P21/c.

Their thermal behavior was studied by TGA methods under non-isothermal condition in air.

Upon heating all compounds decompose progressively to metal oxides, which are the final products of pyrolysis.

Furthermore, antimicrobial and antioxidant activity of the complexes was examined.