Publication Date:
2013-10-03
Description:
The title compound, {(C6H21N4)[V3O9]·H2O}n, crystallizes as a salt with [trenH3]3+ cations [tren is tris(2-aminoethyl)amine], and one-dimensional anionic {[VVO3]−}n (metavanadate) chains along the c-axis direction. Three crystallographically distinct VV sites and one occluded water molecule are present for every [trenH3]3+ cation in the unit cell. The {[VVO3]−}n chains are composed of vertex-sharing [VO4] tetrahedra and have a repeat unit of six tetrahedra. Each tetrahedron in the chain contains two terminal and two μ2-bridging oxide ligands. The [trenH3]3+ cations, {[VVO3]−}n anions and occluded water molecules participate in an extensive three-dimensonal hydrogen-bonding network. The three terminal ammonium sites of the [trenH3]3+ cations each form strong N—H...O hydrogen bonds to terminal oxide ligands on the {[VVO3]−}n chain. Each occluded water molecule also donates two O—H...O hydrogen bonds to the terminal oxide ligands.
Electronic ISSN:
1600-5368
Topics:
Chemistry and Pharmacology
,
Geosciences
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