caa a22 4500 469072458 CHVBK 20180323132925.0 cr unu---uuuuu 170328e19920401xx s 000 0 eng 10.1007/BF00671809 doi (NATIONALLICENCE)springer-10.1007/BF00671809 An X-ray study of the complex anion bis(N -hydroxy-iminodiacetate) vanadate(IV), a model for a vanadium-containing biologic compound [Elektronische Daten] [Maria Carrondo, M. Duarte, JoÃo FraÚsto da Silva, J. da Silva] The structure of ammonium tetramethylammoniumbis(N-hydroxy-iminodiacetate)vanadate(IV) was determined by x-ray analysis. One independent anion and two cations were found in the asymetric unit. The crystal is monoclinic, space group C2/c, with a=15.820(9), b=16.450(6), c=16.311(4) å,Β=118.92(3) deg., V=3715(3) å3, Z=8, Dx=1.56g cm−3,Μ(Mo-Ka)=5.59 cm−1, F(OOO)=2028, M=434.9 for C12H24N4O10V. The structure was solved and refined to R(F)=0.029 and Rw(F)=0.040. The complex anion does not contain the oxovanadium(IV) group, but contains vanadium(IV) as the central atom. This is the first example of a vanadium(IV) complex octacoordinated to nitrogen and oxygen atoms exhibiting a highly distorted dodecahedral geometry. The chelation is along twoa and fourg edges. As the angles ones are bonding distances (N—O, 1.381(3), 1.382(4) å) the angles around the central atom are very different from those usually observed in the dodecahedral complexes. The V—O distances range from 1.973(3) to 2.071(3) å and the V—N distances range from 2.002(3) to 2.003(4) å. Plenum Publishing Corporation, 1992 Carrondo Maria Centro de Química Estrutural, Complexo I, I.S.T., 1096, Lisbon, Portugal aut Duarte M. Centro de Química Estrutural, Complexo I, I.S.T., 1096, Lisbon, Portugal aut FraÚsto da Silva JoÃo Centro de Química Estrutural, Complexo I, I.S.T., 1096, Lisbon, Portugal aut da Silva J. Centro de Química Estrutural, Complexo I, I.S.T., 1096, Lisbon, Portugal aut Structural Chemistry Kluwer Academic Publishers 3/2(1992-04-01), 113-119 1040-0400 3:2<113 1992 3 11224 https://doi.org/10.1007/BF00671809 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00671809 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Carrondo Maria Centro de Química Estrutural, Complexo I, I.S.T., 1096, Lisbon, Portugal aut NATIONALLICENCE 700 1- Duarte M. Centro de Química Estrutural, Complexo I, I.S.T., 1096, Lisbon, Portugal aut NATIONALLICENCE 700 1- FraÚsto da Silva JoÃo Centro de Química Estrutural, Complexo I, I.S.T., 1096, Lisbon, Portugal aut NATIONALLICENCE 700 1- da Silva J. Centro de Química Estrutural, Complexo I, I.S.T., 1096, Lisbon, Portugal aut NATIONALLICENCE 773 0- Structural Chemistry Kluwer Academic Publishers 3/2(1992-04-01), 113-119 1040-0400 3:2<113 1992 3 11224 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer