TY - GEN
T1 - ATR-FTIR spectroscopy and their applications in the ring-opening reaction of spiropyran polymers
AU - Macuil, R. Delgado
AU - López, M. Rojas
AU - Martinez, M. Bibbins
AU - Pernas, V. Camacho
PY - 2008
Y1 - 2008
N2 - In this work we applied FTIR vibrational spectroscopy in Attenuated Total Reflectance mode, to observe the transient species, in an acetone solution at very low weight concentration, due to the molecular transformation from spiropyran to merocyanine form, in four different spiropyran types. In UWIS spectroscopy a new peak generation in the visible region was observe. In ATR, the peak shift from 1487 cm-1 to 1510 cm-1 and two new peaks generation at 1568 cm-1 and 1595 cm-1 are associated to the ring. Also, due to the C-O break down bonding when the molecular transformation was done, the peak associated to the O-C-N bond diminished in intensity and the new peaks generations between 900 to 1000 cm-1 , are associated to this molecular transformation.
AB - In this work we applied FTIR vibrational spectroscopy in Attenuated Total Reflectance mode, to observe the transient species, in an acetone solution at very low weight concentration, due to the molecular transformation from spiropyran to merocyanine form, in four different spiropyran types. In UWIS spectroscopy a new peak generation in the visible region was observe. In ATR, the peak shift from 1487 cm-1 to 1510 cm-1 and two new peaks generation at 1568 cm-1 and 1595 cm-1 are associated to the ring. Also, due to the C-O break down bonding when the molecular transformation was done, the peak associated to the O-C-N bond diminished in intensity and the new peaks generations between 900 to 1000 cm-1 , are associated to this molecular transformation.
UR - http://www.scopus.com/inward/record.url?scp=43649083919&partnerID=8YFLogxK
U2 - 10.1063/1.2926826
DO - 10.1063/1.2926826
M3 - Contribución a la conferencia
AN - SCOPUS:43649083919
SN - 9780735405110
T3 - AIP Conference Proceedings
SP - 1237
EP - 1241
BT - RIAO/OPTILAS 2007 - 6th Ibero-American Conference on Optics (RIAO) and the 9th Latin-American Meeting on Optics, Lasers and Applications (OPTILAS)
T2 - 6th Ibero-American Conference onOptics and 9th Latin-American Meeting on Optics, Lasers and Applications, RIAO/OPTILAS 2007
Y2 - 21 October 2007 through 26 October 2007
ER -