CEQUINOR   05415
CENTRO DE QUIMICA INORGANICA "DR. PEDRO J. AYMONINO"
Unidad Ejecutora - UE
artículos
Título:
Synthesis and spectroscopic characterization of two new thiosaccharinate salts. Molecular structure of bis(triphenylphosphine)iminium thiosaccharinate, PNP(tsac), , Monatsh
Autor/es:
M. DENNEHY, O. V. QUINZANI, S. D. MANDOLESI, J. A. GUIDA, G. ECHEVERRÍA, O. E. PIRO
Revista:
MONATSHEFTE FUR CHEMIE (VIENNA)
Editorial:
Springer
Referencias:
Lugar: Viena; Año: 2006 vol. 138
ISSN:
0026-9247
Resumen:
We report the synthesis, FTIR, Raman and NMR spectroscopic features of bis(triphenylphosphine)iminium and tetrabutylammonium thiosaccharinates, PNP(tsac) and NBu4(tsac) [tsac: thiosaccharinate anion, PNP: bis(triphenylphosphine)iminium]. The molecular structure of the former compound is determined by X-ray diffraction methods. The salt crystallizes in the monoclinic P21/n space group with a=9.6481(9), b=29.258(3), c=13.177(2) Å, b=97.53(1)°, and Z=4 molecules per unit cell. Slight but significant changes in the bonding structure of the thiosaccharinate anion as compared with those reported for the neutral molecule are observed. We report the synthesis, FTIR, Raman and NMR spectroscopic features of bis(triphenylphosphine)iminium and tetrabutylammonium thiosaccharinates, PNP(tsac) and NBu4(tsac) [tsac: thiosaccharinate anion, PNP: bis(triphenylphosphine)iminium]. The molecular structure of the former compound is determined by X-ray diffraction methods. The salt crystallizes in the monoclinic P21/n space group with a=9.6481(9), b=29.258(3), c=13.177(2) Å, b=97.53(1)°, and Z=4 molecules per unit cell. Slight but significant changes in the bonding structure of the thiosaccharinate anion as compared with those reported for the neutral molecule are observed.
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