Abstract
A mononuclear VIV complex, (C4H12N2)[VO(C2O4)2(H2O)]·1.5H2O, with bis(oxalate) ligands, has been synthesized under hydrothermal conditions. The structure contains aquabis(oxalato)oxovanadium(IV) complex anions, [VO(C2O4)2(H2O)]2−, and diprotonated piperazine cations, [C4N2H12]2+. The ions are connected through hydrogen bonds to form a three-dimensional network with micropores, where uncoordinated water molecules are located with the some degree of disorder. The V center has distorted octahedral geometry with one terminal O atom, four O atoms from two oxalate groups and one water O atom. The two oxalate groups are cis arranged. The V—O bond lengths are in the range 1.599 (2)–2.216 (2) Å.
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More From: Acta Crystallographica Section E Structure Reports Online
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