Author/Authors :
Fujino، نويسنده , , T. and Kashitani، نويسنده , , M. and Fukuyama، نويسنده , , K. and Kubota، نويسنده , , Helen J. and Kondo، نويسنده , , J.N. and Wada، نويسنده , , A. and Domen، نويسنده , , K. and Hirose، نويسنده , , C. and Wakabayashi، نويسنده , , F. and Kano، نويسنده , , S.S.، نويسنده ,
Abstract :
The population lifetimes of the OH stretching mode of a water molecule hydrogen-bonded to the Brّnsted acidic hydroxyl groups in a mordenite-type zeolite have been measured at various temperatures using an infrared picosecond pump-probe technique. An extraordinary temperature dependence has been observed for the lifetime of hydrogen-bonded H2O, which was explained by the creation of one quantum of the adbond vibrational mode and two bulk phonons in the relaxation process.
