SYNTHESIS, CHARACTERIZATION AND THE CRYSTAL STRUCTURE OF A CIS-DIOXOVANADIUM(V) COMPLEX OF A TRIDENTATE SCHIFF BASE LIGAND

Abstract The title complex, [VO2{C6H5C(O)CHC(CH3)NNC(O)CH2(NC5H5)}] · C2H5OH, was synthesized and characterized by elemental analysis and spectroscopy. Yellow crystals of the complex are monoclinic, space group P21/a with a = 10.690(2), b = 16.008(3), c = 13.164(4)A, β = 107.03(2)°, V = 2153.9(18)A3, F(000) = 880 and Dc = 1.305 g cm−3 for Z = 4. X-ray structure analysis shows that the vanadium coordination number is five and the coordination polyhedron is a distorted trigonal bipyramid.

[1]  C. R. Cornman,et al.  Structural and spectroscopic characterization of dioxovanadium(V) complexes with asymmetric Schiff base ligands , 1993 .

[2]  D. Rehder,et al.  Binding of L-histidine to vanadium. Structure of exo[VO2{N-(2-oxidonaphthal)-his}] , 1993 .

[3]  D. Rehder.  The Bioinorganic Chemistry of Vanadium , 1991 .

[4]  C. Carrano,et al.  Monomeric and dimeric vanadium(IV) and -(V) complexes of N-(hydroxyalkyl)salicylideneamines: structures, magnetochemistry and reactivity , 1990 .

[5]  H. Degani,et al.  Vanadium in Biological Systems , 1990, Springer Netherlands.

[6]  J.J.R. Frausto da Silva.  Vanadium in biology—the case of the Amanita toadstools , 1989 .

[7]  V. Pecoraro,et al.  Vanadium complexes of the tridentate Schiff base ligand N-salicylidene-N'-(2-hydroxyethyl)ethylenediamine: acid-base and redox conversion between vanadium(IV) and vanadium(V) imino phenolates , 1988 .

[8]  J. K. Grady,et al.  Characterization of the binding, kinetics, and redox stability of vanadium(IV) and vanadium(V) protein complexes in serum , 1986 .

[9]  C. Floriani,et al.  Chemistry and structure of an inorganic analog of a carboxylic acid: hydroxobis(8-quinolinato)oxovanadium(V) , 1982 .

[10]  D. Collins,et al.  Stereochemistry of dioxovanadium(V) complexes. II. Crystal and molecular structures of ammonium (dihydrogen ethylenediaminetetraacetato)dioxovanadate(V) trihydrate , 1971 .

[11]  W. Scheidt,et al.  Stereochemistry of dioxovanadium(V) complexes. I. Crystal and molecular structure of triammonium bis(oxalato)dioxovanadate(V) dihydrate , 1971 .

[12]  W. Scheidt,et al.  Stereochemistry of dioxovanadium(V) complexes. III. Crystal and molecular structures of trisodium (ethylenediaminetraacetato)dioxovanadate(V) tetrahydrate , 1971 .

[13]  J. Fuchs,et al.  Zur Hydrolyse amphoterer Metallalkoxide, X. Die Verseifung des Orthovanadinsäure‐tert.‐butylesters in Gegenwart von Tetraalkylammoniumbasen , 1968 .