Synthesis and crystal structure of [(PhenH)(PhenH2)][BiCl6] . 2H2O with different o-phenanthroline protonations.

The reaction between bismuthate oxide and phen (1,10-phenanthroline) in acid medium led to the isolation of the unusual [(PhenH)(PhenH2)][BiCl6] 2H2O derivative, which has been characterized by X-ray analysis and IR spectroscopy. The compound crystallizes in the triclinic space group P1 with a = 8.313(2), b = 9.349(2), c = 9.807(3) A, a = 86.39(3), B = 110.27(3) and y = 106.48(3)°. The crystal structure is made of [BiCl6] 3- anions and [(PhenHXPhenr2)]3+cations. A network of hydrogen bond interactions involving the two clathrated water molecules, the phenanthroline moiety and the chlorines characterizes the entire structure.