Artículos de revistas
Novel examples of hybrid organic-inorganic solids based on V4 O124 - building blocks
Fecha
2008Registro en:
Inorganica Chimica Acta, Volumen 361, Issue 7, 2018, Pages 1891-1896
00201693
10.1016/j.ica.2007.10.008
Autor
Le Fur, E.
Pivan, J. Y.
Ushak, S.
Venegas Yazigi, Diego
Spodine Spiridonova, Evgenia
Institución
Resumen
New hybrid organic/inorganic copper oxovanadium compounds of composition [Cu(dpa)2]4V4O12 (1), Cu2(bipy)2V4O12 (2), and Cu2(bipy)2V6O17 (3), which crystallize in the monoclinic 1, 2 and triclinic 3 symmetry, respectively, were obtained by soft hydrothermal routes. The first two structures present isolated [V4O12]4- anionic units, the structure of 3 exhibits the same [V4O12]4- cycles coupled by V2O5 dimeric bridges propagated as an infinite chain along the c-direction 3. For compound 1, the copper(I) centers are bonded to four nitrogen atoms with a distorted tetrahedral geometry. For compounds 2 and 3, the copper(II) centers are square pyramidal with two nitrogen atoms from the neutral diimine ligand and three oxygen atoms from the oxovanadium sub-unit. In all the compounds described herein, the vanadium ions are as V(V), occupying solely tetrahedral sites. © 2007 Elsevier B.V. All rights reserved.