Characterization of bis(isoorotato) diaquamagnesium(II) dihydrate: a potentially useful complex for magnesium supplementation

摘要

The synthesis and crystal structure of a new Mg(II) complex of stoichiometry [Mg(isoor)_2(H_2O)_2] center dot 2H_2O, where isoor is the monoanion of 5-carboxyuracil (isoorotic acid), are reported. The structure, solved by single-crystal X-ray diffractometry, shows that it crystallizes in the triclinic space group P(-1) with Z = 1. The electronic, IR and Raman spectra of the complex are briefly discussed. Its thermal behavior was also investigated by means of thermal gravimetry (TG) and differential thermal analysis(DTA) measurements in an oxygen atmosphere. Dissolution studies support the usefulness of the compound for magnesium supplementation.