Synthesis and Characterization of a New Chlorozincophosphate [H₃N(CH₂)₂NH₃]_0.5Zn(HPO₄)Cl

Abstract

A new zincophosphate [H₃N(CH₂)₂NH₃]_0.5Zn(HPO₄)Cl, was obtained at room temperature from a starting mixture of ZnCl₂, H₃PO₄, H₂O, and ethylene-diamine. Its unit cell is tricline P-1 (No. 2) with parameters a = 7.709(2) Åi, b = 8.479(2) Åi, c = 5.175(2) Åi, α = 104.99(3), β = 107.41(4), γ = 87.34(2)°, Z = 2, and V = 311.6(2) Åi³. Its structure is resolved to R = 0.024, Rw = 0.037. The backbone of the title compound is a linear heteroanion built by PO₄ and ZnO₃Cl tetrahedra assembled to form four member rings themselves interconnected by sharing common oxygen atoms. Hydrogen bonds O─ H═ O established between these chains connect them as to build infinite planes. The organic entities, located between these planes form the 3D cohesion through N─ H═ O or N─ H═ Cl hydrogen bonds.

Keywords:

• NMR spectroscopy
• organic template
• X-ray diffraction
• zincophosphate

ACKNOWLEDGMENTS

We would like to thank the Secretary of State for Scientific Research and Technology for its financial support.