Další formáty:
BibTeX
LaTeX
RIS
@article{582724, author = {Chrappová, J. and Schwendt, P. and Marek, Jaromír}, article_location = {Velká Britanie}, article_number = {9-10}, keywords = {Peroxovanadium complexes; X-ray structure determination; NMR spectrocopy}, language = {eng}, issn = {0022-1139}, journal = {Journal of Fluorine Chemistry}, title = {NMR study of the [VO(O2)2F]2- ion in solution: Synthesis, vibrational spectra and crystal structure of [NH3CH2CH2NH3][VO(O2)2F]}, volume = {126}, year = {2005} }
TY - JOUR ID - 582724 AU - Chrappová, J. - Schwendt, P. - Marek, Jaromír PY - 2005 TI - NMR study of the [VO(O2)2F]2- ion in solution: Synthesis, vibrational spectra and crystal structure of [NH3CH2CH2NH3][VO(O2)2F] JF - Journal of Fluorine Chemistry VL - 126 IS - 9-10 SP - 1297-1302 EP - 1297-1302 PB - Elsevier B.V. SN - 00221139 KW - Peroxovanadium complexes KW - X-ray structure determination KW - NMR spectrocopy N2 - The presence of the [VO(O2)2F]2- ion in an aqueous solution gives rise to a doublet (delta = -714 ppm, JVF = 163+/-3 Hz) in the 51V NMR, and a multiplet (delta = -160 ppm, Delta nu 1/2 = 1163 Hz) in the 19F NMR spectrum. The formation of this species is enhanced in formamide solutions. The ethane-1,2-diammonium(2+) fluorooxodiperoxovanadate, [NH3CH2CH2NH3][VO(O2)2F], was prepared from aqueous solution and characterized by elemental analysis, and IR and Raman spectroscopies. The complex crystallizes in the orthorhombic space group Pbca with eight formula units in a cell of dimensions: a = 9.2690(4), b = 8.8321(5) and c = 16.7605(8) A. The complex anion has a rare pentagonal pyramidal structure with a very weak intermolecular interaction d(V...O) = 2.8730(12) A between the vanadium atom and the double-bonded oxygen atom from the adjacent anion. ER -
CHRAPPOVÁ, J., P. SCHWENDT a Jaromír MAREK. NMR study of the [VO(O2)2F]2- ion in solution: Synthesis, vibrational spectra and crystal structure of [NH3CH2CH2NH3][VO(O2)2F]. \textit{Journal of Fluorine Chemistry}. Velká Britanie: Elsevier B.V., roč.~126, 9-10, s.~1297-1302. ISSN~0022-1139. 2005.
|