Complexation of the vitamin B6 with the Cd2+ cation: NMR and X-ray structural study

摘要: Abstract The complex Cd(pyridoxine)Cl2 crystallizes in space group P21/c with a = 9.279(2), b 7.289(3), c 17.845(6) A and s 114.36(2) . crystal structure has been determined using four-circle diffractometer data recorded at 24°C refined by full matrix least-squares calculations to R 0.048. It consists of infinite chains Cd-bridge-Cd. Cd atom, an octahedral environment, is bound three chlorine atoms oxygen the ligand. Two make double bridge between two equivalent cadmium atoms. pyridoxine molecule acts as bidentate ligand through Moreover, Cd2+ influence on B6 vitamin 13C NMR spectra investigated aqueous solution. At pH ∼ 7, reacts metallic ion zwitterion give 1.1 chelate. These results are perfect agreement radiocrystallographic study.