IFLP   13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
artículos
Título:
Synthesis and spectroscopic characterization of two new thiosaccharinate salts. Molecular structure of bis(triphenylphosphine)iminium thiosaccharinate, PNP(tsac)
Autor/es:
M. DENNEHY; O. V. QUINZANI; S. D. MANDOLESI; J. GUIDA; G. A. ECHEVERRÍA; O. E. PIRO
Revista:
Monatschefte fur Chemie
Referencias:
Año: 2007 vol. 138 p. 669 - 675
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 was 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) A, beta=97.53(1)º, 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.PNP(tsac) and NBu4(tsac) (tsac: thiosaccharinate anion, PNP: bis(triphenylphosphine) iminium). The molecular structure of the former compound was 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) A, beta=97.53(1)º, 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.