CENTRO DE QUIMICA INORGANICA "DR. PEDRO J. AYMONINO"
Unidad Ejecutora - UE
Structural and Spectroscopic Characterization of Isotypic Sodium, Rubidium and Cesium Acesulfamates
OSCAR E. PIRO; GUSTAVO A. ECHEVERRÍA; EDUARDO E. CASTELLANO; BEATRIZ S. PARAJÓN COSTA; ENRIQUE J. BARAN,
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B - A JOURNAL OF CHEMICAL SCIENCES
VERLAG Z NATURFORSCH
Lugar: Tübingen; Año: 2015 vol. 70 p. 491 - 491
Three new acesulfamate salts, NaC4H4NO4S, RbC4H4NO4S and CsC4H4NO4S, were prepared by reactions in aqueous solutions and thoroughly characterized. Their crystal and molecular structures were determined by single crystal X-ray diffraction methods. They crystallize in the monoclinic P21/a space group with a=7.2518(2), b=8.9414(4), c=10.5929(4) Å, b=99.951(3)° for the Na salt; a=7.4663(3), b=9.6962(4), c=10.4391(4) Å, β= 95.150(3)º for the Rb salt and a=7.5995(4), b=9.9439(4), c=10.8814(6) Å, β =91.298(5) for the Cs salt, and Z=4 molecules per unit cell. The three compounds are isostructural to each other and to the previously reported potassium salt. The metal ions are in irregular polyhedral coordination with six neighboring acesulfamate anions through their nitrogen and the carbonyl and sulfoxide oxygen atoms. The FTIR spectra of the compounds were also recorded and briefly discussed.