Inorganic Chemistry, Vol.50, No.21, 10549-10551, 2011
Chelating Ligand Conformation Driving the Hypoxanthine Metal Binding Patterns
The X-ray diffraction structural results of 23 ternary compounds, type M-II(iminodiacetate-like)(hypoxanthine) [M = Co, Ni, Cu, or Zn], show that the iminodiacetate moiety conformation (mer-NO2 or fac-NO2) is able to drive the M-hypoxanthine binding patterns displaying the M-N9 or M-N3 bond, cooperating with a N9-H center dot center dot center dot O intramolecular interaction, respectively.