Solution Synthesis and Structure of VPO Catalyst Precursor

Abstract

Abstract: VPO polymer β-NH₄(VO₂)(HPO₄) was synthesized from the mixture of NH₄VO₃ and NH₄H₂PO₄ in aqueous acidic solution. This hydrogenphosphate vanadate crystallizes in the orthorhombic space group Pbca with a=0.68060(8) nm, b=0.92570(5) nm, c=1.77370(2) nm, V=1.1175(3) nm 3, Z=8, D_c=1.743 g·cm^-3, μ=88.54 cm^-1 and R=0.051. The structure is built up from VO₅ square pyramid linked by trans-vertices through the bridged oxygen atom to form an one dimensional isolated chain of {VO₂HPO₄}_n^n- nunning along the a axis.

Key words: VPO catalyst, Low alkane, Oxovanadium, Coordination polymer, Crystal structure

CLC Number:

O614.2

TrendMD:

JIANG Ya-Qi, ZHOU Zhao-Hui, WEI Zan-Bin, WAN Hui-Lin . Solution Synthesis and Structure of VPO Catalyst Precursor[J]. Chem. J. Chinese Universities, 2000, 21(8): 1177.

References

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