Co(II) ion doped chlorocadmiumphosphate Cd(HPO4)Cl⋠[H3N(CH2)6NH3]0.5 crystals: A novel organically templated hybrid open-framework

Co(II) doped chlorocadmiumphosphate crystals are synthesized in acidic conditions at room temperature. Powder X-ray diffraction data of this compound indicates that it crystallizes in monoclinic space group with lattice parameters a=1.7720, b=1.1509, c=0.9912nm and β=100.9°. The low temperature EPR spectrum reveals the presence of two resonances at g=4.36 and g=2.0, which indicates distorted octahedral site for Co(II) ions. Optical absorption studies of the complex further confirm the near octahedral symmetry for the dopant ion. FT-IR studies confirm the presence of PO43− ions and −NH3+ ions in the sample.