TY - JOUR
T1 - Infrared spectroscopic study of the bending modes of the bronsted acidic sites in deuterated zeolites
AU - Jacobs, W.P.J.H.
AU - Wolput, van, J.H.M.C.
AU - Santen, van, R.A.
PY - 1993
Y1 - 1993
N2 - Deuteration of Bronsted acidic sites in zeolites gives observable infrared in-plane O-D bending modes. For zeolite Y and ZK-5, a maximum near 870 cm-1 with a shoulder near 890 cm-1 is observed. These signals are related to, respectively, the high-frequency and the low-frequency stretching modes. Mordenite, zeolite beta and ZSM-5 possess a single mode near 890 cm-1. The zeolite structure type and composition influences the position of the modes strongly. A large anharmonicity parameter, x(deltadelta)OD (-80 cm-1), is found due to Fermi resonance with the zeolite lattice modes
AB - Deuteration of Bronsted acidic sites in zeolites gives observable infrared in-plane O-D bending modes. For zeolite Y and ZK-5, a maximum near 870 cm-1 with a shoulder near 890 cm-1 is observed. These signals are related to, respectively, the high-frequency and the low-frequency stretching modes. Mordenite, zeolite beta and ZSM-5 possess a single mode near 890 cm-1. The zeolite structure type and composition influences the position of the modes strongly. A large anharmonicity parameter, x(deltadelta)OD (-80 cm-1), is found due to Fermi resonance with the zeolite lattice modes
U2 - 10.1016/0009-2614(93)89095-Y
DO - 10.1016/0009-2614(93)89095-Y
M3 - Article
SN - 0009-2614
VL - 210
SP - 32
EP - 37
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 1-3
ER -