Interactions between surface hydroxyl groups and adsorbed molecules. II. Infrared spectroscopic study of benzene adsorption

1970 ◽  
Vol 74 (9) ◽  
pp. 1950-1956 ◽  
Author(s):  
James A. Cusumano ◽  
Manfred J. D. Low
Keyword(s):  
Spectroscopic Study ◽  
Hydroxyl Groups ◽  
Infrared Spectroscopic Study ◽  
Benzene Adsorption ◽  
Adsorbed Molecules ◽  
Surface Hydroxyl ◽  
Surface Hydroxyl Groups ◽  
Infrared Spectroscopic

Kaolinite hydroxyls in dimethylsulphoxide-intercalated kaolinites at 77 K – a Raman spectroscopic study

Clay Minerals ◽  
2000 ◽  
Vol 35 (2) ◽  
pp. 443-454 ◽  
Author(s):  
R. L. Frost ◽  
J. Kristof ◽  
E. Horvath ◽  
J. T. Kloprogge
Keyword(s):  
Raman Spectroscopy ◽  
Spectroscopic Study ◽  
Dmso Molecule ◽  
Molecular Forms ◽  
Hydroxyl Groups ◽  
Surface Hydroxyl ◽  
Raman Spectroscopic ◽  
Raman Spectroscopic Study ◽  
Surface Hydroxyl Groups ◽  
Inner Surface

AbstractKaolinite hydroxyls in dimethylsulphoxide-intercalated (DMSO-intercalated) kaolinites have been determined using Raman spectroscopy at 298 and 77 K. The inner surface hydroxyl frequencies at 3650, 3670, 3684 and 3693 cm-1 move to higher wavenumbers upon cooling to 77 K and are observed at 3659, 3676, 3692 and 3702 cm-1. The inner hydroxyl frequency is at 3620 cm-1 at 298 K and is at 3615 cm-1 at 77 K. Upon intercalation with DMSO, additional bands are found at 3660, 3536 and 3501 cm-1 for the low-defect kaolinite and at 3664, 3543 and 3509 cm-1 for the high-defect kaolinite at 298 K. The 3660 cm-1 band at 298 K is resolved into two bands at 3658 and 3663 cm-1 at 77 K for the low-defect kaolinite and these bands are assigned to the inner surface hydroxyl groups, hydrogen-bonded to the DMSO molecule. It is proposed that the DMSO molecule exists with two different orientations in the intercalate and these two molecular forms are differentiated by the OH-stretching bands of the inner surface hydroxyl groups. This band for the high-defect kaolinite is found at 3664 cm-1 at 298 K and resolves into two bands at 3664 and 3673 cm-1 at 77 K.

Infrared spectroscopic study on the location of the hydroxyl groups in erionite

Zeolites ◽  
1987 ◽  
Vol 7 (5) ◽  
pp. 488-489 ◽  
Author(s):  
F. Roessner ◽  
K.-H. Steinberg ◽  
S. Rechenburg
Keyword(s):  
Spectroscopic Study ◽  
Hydroxyl Groups ◽  
Infrared Spectroscopic Study ◽  
Infrared Spectroscopic
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