INVESTIGADORES
PIRO Oscar Enrique
artículos
Título:
Low Temperature Polarized Infrared Spectra of the Nitroprusside Anion in the Electronic Ground and Metastable States in (001) Plates of Ba[Fe(CN)5NO].3H2O
Autor/es:
J. A. GÜIDA; O. E. PIRO; P. J. AYMONINO
Revista:
SOLID STATE COMMUNICATIONS
Editorial:
Pergamon Press
Referencias:
Año: 1988 vol. 66 p. 1007 - 1010
ISSN:
0038-1098
Resumen:
The polarized IR spectra of the nitroprusside ion in thin (001) single crystal plates of Ba[Fe(CN)sNO].3H20 were obtained in the range 4000-250 cm^-1, at room temperature and at about i0 K, before and after irradiation with the 514.5 nm line of an Ar-laser. The IR behavior of the electronically excited metastable state of the anion was similar to the previously reported behavior in Na2[Fe(CN)5NO].2H20 and confirmed a finding not detected by Raman spectroscopy in this latter substance. The splitting of some bands and the appearance of new features in the spectrum of unirradiated Ba[Fe(CN)5NO].3H20 upon cooling, not seen previously due to instrumental limitations, seem to support a phase change at low temperature.
