Hydrothermal crystallization and X-ray structure determination of a new decavanadate with mixed cations [Mn(H2O)6]2[N(CH3)4]2[V10O28]·2H2O


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Abstract

A new decavanadate with mixed cations, [Mn(H2O)6]2[N(CH3)4]2[V10O28]·2H2O (1), was crystallized from a hydrothermal reaction between MnCO3 and V2O5 in the presence of N(CH3)4Br at 100°C. The structure of 1, as determined by x-ray single crystal analysis, consists of cations and anions of hexa-aqua manganese [Mn(H2O)6]2+, tetramethyl ammonium [N(CH3)4]+ and decavanadate [V10O28]6−. The extended H-bonding between the [Mn(H2O)6]2+ and [V10O28]6− ions gives rise to a pseudo- two-dimensional network in the crystal lattice x-ray crystallographic data for 1: monoclinic P21/n,a = 9.1499(5), b = 12.8725(7), c = 18.625(1) Å, β = 92.252(1)°, V = 2192.0(2) Å3, MZ = 2, and Dcalcd = 2.22 g cm−3.

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