Infrared spectra of acetonitrile sorbed on porous glass

1970 ◽  
Vol 48 (1) ◽  
pp. 7-12 ◽  
Author(s):  
M. J. D. Low ◽  
P. L. Bartner
Keyword(s):  
Infrared Spectra ◽  
Porous Glass ◽  
Weakly Bound ◽  
Surface Complexes ◽  
Surface Hydroxyls ◽  
Hydrogen Bonded

Infrared spectra were recorded of acetonitrile sorbed on highly degassed porous glass as well as on silica and B-, Al-, and Zr-impregnated porous glass and silica. Most of the acetonitrile was weakly and reversibly adsorbed, becoming hydrogen-bonded to surface hydroxyls. A small amount of the adsorbate formed weakly bound surface complexes with Al- and Zr-, but not with B-impurities.

Dual interaction of anisole with surface hydroxyls

1969 ◽  
Vol 47 (20) ◽  
pp. 3906-3909 ◽  
Author(s):  
M. J. D. Low ◽  
J. A. Cusumano
Keyword(s):  
Infrared Spectra ◽  
Porous Glass ◽  
Surface Structures ◽  
Surface Hydroxyls

Infrared spectra were recorded of anisole adsorbed on porous glass which had been dehydroxylated to various extents, on highly dehydroxylated silica, and on fully fluoridated porous glass. Spectra recorded at various surface coverages showed 2 broad bands near 3600 and 3400 cm−1 due to perturbed surface hydroxyls, indicating that the adsorbed anisole was weakly held to the surface in 2 ways. The surface structures and mechanism are discussed.

Infrared spectra of pyridine sorbed on porous glass

1968 ◽  
Vol 46 (20) ◽  
pp. 3255-3261 ◽  
Author(s):  
M. J. D. Low ◽  
V. V. Subba Rao
Keyword(s):  
Hydrogen Bonding ◽  
Nitrogen Atom ◽  
Infrared Spectra ◽  
Porous Glass ◽  
Physical Adsorption ◽  
Hydrogen Atoms ◽  
Oh Groups ◽  
Pure Silica ◽  
Hydrogen Bonded

Infrared spectra were recorded of pyridine (PY) sorbed on highly dehydroxylated, deuterated, and fluoridated porous glass, as well as on pure silica and boria-impregnated silica. The hydrogen atoms of sorbed PY exchange with surface OD groups. Physical adsorption occurs by hydrogen bonding of PY to SiOH and B—OH groups via the PY nitrogen atom; there is some interaction of the ring π system with OH groups. Surface B:PY complexes form by coordination of PY to boron; the B:PY may be hydrogen bonded to B—OH groups. Some PY dissociates, and OH groups are generated.

Effect of Pressure on the Infrared Spectra of Some Hydrogen‐Bonded Solids

1964 ◽  
Vol 41 (1) ◽  
pp. 47-50 ◽  
Author(s):  
Joseph Reynolds ◽  
Sanford S. Sternstein
Keyword(s):  
Infrared Spectra ◽  
Effect Of Pressure ◽  
Hydrogen Bonded

Hydrogen bonding and conformation in cis- and trans-2-alkoxy-3-hydroxytetrahydrofurans

1968 ◽  
Vol 46 (1) ◽  
pp. 21-24 ◽  
Author(s):  
W. W. Zajac Jr. ◽  
F. Sweet ◽  
R. K. Brown
Keyword(s):  
Hydrogen Bonding ◽  
Infrared Spectra ◽  
Hydroxyl Absorption ◽  
Cis And Trans ◽  
In Cis ◽  
Infrared Data ◽  
Hydrogen Bonded

Infrared spectra show both free and hydrogen bonded hydroxyl absorption in several trans-2-alkoxy-3-hydroxytetrahydrofurans. The extent of non-bonded hydroxyl is greater than that of bonded hydroxyl. Suggestions are made of possible conformations which might account for the infrared data.

Infrared spectra of the interactions of aniline and porous glass surfaces

1969 ◽  
Vol 47 (8) ◽  
pp. 1281-1287 ◽  
Author(s):  
M. J. D. Low ◽  
V. V. Subba Rao
Keyword(s):  
Nitrogen Atom ◽  
Aromatic Ring ◽  
Secondary Amine ◽  
Infrared Spectra ◽  
Porous Glass ◽  
Weak Interactions ◽  
Amine Group ◽  
Oh Groups ◽  
Glass Surfaces ◽  
Adsorption And Dissociation

Infrared spectra were recorded of aniline sorbed on highly dehydroxylated, deuterated, and on fluoridated porous glass as well as on pure and boria-impregnated silica. The results suggest that two types of weak interactions involving the surface SiOH and B—OH groups occurred; the nitrogen atom of the amine was hydrogen bonded to surface OH and there was an interaction between OH groups and the π system of the aromatic ring. Some aniline chemisorbed on surface boron via the nitrogen atom of the amine group. Some aniline chemisorbed dissociatively to form secondary amine structures bonded through the nitrogen to surface boron atoms and new B—OH groups formed. Surface boron impurity acted as an adsorption and dissociation center.

Infrared spectra of vanadium surface complexes formed with oxygen-containing molecules

1970 ◽  
Vol 9 (2) ◽  
pp. 302-307 ◽  
Author(s):  
George Blyholder ◽  
Marvin Carrol Allen
Keyword(s):  
Infrared Spectra ◽  
Surface Complexes

Infrared spectra of hydrogen bonded crystals: Uracil

1974 ◽  
Vol 26 (3) ◽  
pp. 327-328 ◽  
Author(s):  
Andrzej Witkowski ◽  
Marek Wójcik
Keyword(s):  
Infrared Spectra ◽  
Hydrogen Bonded
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