A two-dimensional molybdenum (V) phosphate with covalently bonded transition metal coordination complexes: hydrothermal synthesis and structure characterization of Na 2[{Mn(phen) 2(H 2O)}{Mn(phen) 2} 3{Mn Mo 12vO 24 (HPO 4) 6(PO 4) 2(OH) 6}]·4H 2O (phen=1, 10-phenanthroline)

Abstract

An organic–inorganic hybrid molybdenum phosphate, Na 2[{Mn(phen) 2(H 2O)} {Mn(phen) 2} 3{MnMo 12 vO 24 (HPO 4) 6(PO 4) 2(OH) 6}]·4H 2O (phen=1,10-phenanthroline), involving molybdenum present in V oxidation state and covalently bonded transition metal coordination complexes, has been hydrothermally synthesized and structurally characterized by single-crystal X-ray diffraction. Deep brown–red crystals are formed in the triclinic system, space group P 1 ̄ , a=16.581(1) Å, b=18.354(1) Å, c=24.485(2) Å, α=80.589(1)°, β=71.279(1)°, γ=67.084(1)°, V=6493.8(8) Å 3, Z=2, λ(Mo Kα)=0.71073 Å ( R( F)=0.0686 for 29,053 reflections). Data were collected on a Bruker Smart Apex CCD diffractometer at 293 K in the range of 1.76< θ<28.06° using ω–2 θ scans technique. The structure of the title compound may be considered to be based on {Mo 6O 12(HPO 4) 3(PO 4)(OH) 3} units bonded together with {Mn(phen) 2} subunits into a two-dimensional network. Two types of tunnels are observed in the solid of the title compound.