2010•Journal of Coordination ChemistryRequires access
Hydrothermal syntheses and crystal structures of two new phosphomolybdates based on an organoamine template
Dawei Yan, Lei Zheng, Zhibin Zhang, Congling Wang, Yan Yuan, Dunru Zhu, Yan Xu
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Abstract
Two new compounds of disphosphopentamolybdate (VI), (C6H18N2)2[H2P2Mo5O23] · 2(H2O) (1) and (C6H18N2)4.5H3[P2Mo5O23]2 · 6(H2O) (2), have been synthesized under hydrothermal conditions and characterized by single-crystal X-ray diffraction. Compound 1 crystallizes in the triclinic space group P 1 with a = 11.0863(9) Å, b = 11.9562(9) Å, c = 14.2291(19) Å, α = 103.0410(10)°, β = 100.3530(10)°, γ = 103.7390(10)°, V = 1729.8(2) Å3, Z = 2; compound 2 crystallizes in the triclinic space group P 1 with a = 14.6440(13) Å, b = 15.9168(13) Å, c = 17.9795(13) Å, α = 80.4270(10)°, β = 86.1180(10)°, γ = 64.1890(10)°, V = 3720.1(5) Å3, Z = 2. Characterizations by elemental analysis, infrared analysis, and thermal analysis are also given. Formation of 1 and 2 indicates that pH of solution plays an important role during the synthesis.