A three-dimensional heterometallic Cu-I/V-IV 1,2-bis(1,2,4-triazol-4-yl)ethane framework: a new insight into the structure of vanadium oxyfluoride coordination hybrids

作者：Sharga Olena V; Lysenko Andrey B; Krautscheid Harald; Domasevitch Konstantin V^*

来源：Acta Crystallographica Section C-Structural Chemistry, 2010, 66: 269-272.

DOI：10.1107/S0108270110034323

The bitopic ligand 1,2-bis(1,2,4-triazol-4-yl)ethane (tr(2)eth) provides an unprecedented short-distance N 1:N 2-triazole bridging of CuI and VIV ions in poly[bis[mu(4)-1,2-bis(1,2,4-triazol-4-yl)ethane]di-mu(2)-fluorido-tetrafluoridodi-mu(2)-oxido-dicopper(I)divanadium(IV)], [Cu2V2F6O2(C6H8N6)(2)] (n) . The CuI ions and tr(2)eth linkers afford a two-dimensional square-grid topology involving centrosymmetric (tr)Cu(mu-tr)(2)Cu(tr) [tr is triazole; Cu-N = 1.9525 (16)-2.0768 (18) A] binuclear net nodes, which are expanded in a third dimension by centrosymmetric [V2O2F6]2- pillars. The concerted mu-tr and mu-O bridging between the CuI and VIV ions allows a multi-centre accommodation of the vanadium oxyfluoride moiety on a cationic Cu/tr(2)eth matrix [Cu-O = 2.1979 (15) A and V-N = 2.1929 (17) A]. The distorted octahedral coordination of [VONF4] is completed by two terminal and two bridging F- ions [V-F = 1.8874 (14)-1.8928 (13) and 2.0017 (13)-2.1192 (12) A, respectively]. The resulting three-dimensional framework has a primitive cubic net topology and adopts a threefold interpenetration.

• 出版日期2010-9