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 hydrogen bonded crystals: Uracil

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

Infrared spectra of hydrogen-bonded .pi. complexes between hydrogen halides and acetylene

1980 ◽  
Vol 102 (9) ◽  
pp. 2892-2896 ◽  
Author(s):  
Stephen A. McDonald ◽  
Gary L. Johnson ◽  
Brian W. Keelan ◽  
Lester Andrews
Keyword(s):  
Infrared Spectra ◽  
Hydrogen Halides ◽  
Pi Complexes ◽  
Hydrogen Bonded

ChemInform Abstract: INFRARED SPECTRA OF HYDROGEN-BONDED Π COMPLEXES BETWEEN HYDROGEN HALIDES AND ACETYLENE

1980 ◽  
Vol 11 (30) ◽  
Author(s):  
S. A. MCDONALD ◽  
G. L. JOHNSON ◽  
B. W. KEELAN ◽  
L. ANDREWS
Keyword(s):  
Infrared Spectra ◽  
Hydrogen Halides ◽  
Hydrogen Bonded

Infrared Spectra of Crystalline Acetic Acid, a Hydrogen-Bonded Polymer

1977 ◽  
Vol 31 (2) ◽  
pp. 110-115 ◽  
Author(s):  
P. F. Krause ◽  
J. E. Katon ◽  
J. M. Rogers ◽  
D. B. Phillips
Keyword(s):  
Hydrogen Bonding ◽  
Acetic Acid ◽  
Infrared Spectra ◽  
Group Analysis ◽  
Structural Models ◽  
Factor Group ◽  
Vibrational Modes ◽  
Cryogenic Temperatures ◽  
Polymeric Chains ◽  
Hydrogen Bonded

The polarized infrared spectra of crystalline acetic acid and two of its deuterated derivatives, CH3COOD and CD3COOD, have been recorded from 400 to 4000 cm−1 at cryogenic temperatures. The spectroscopic results have been interpreted on the basis of a factor group analysis based on two structural models: a crystallographic cell composed of four interacting monomer units some of whose vibrational modes are highly perturbed by hydrogen bonding and a unit cell composed of two noninteracting acetic acid chains. The results are discussed in terms of possible interactions between the hydrogen-bonded acetic acid polymeric chains.

Infrared spectra of hydrogen-bonded salicylic acid and its derivatives. Methyl salicylate

1985 ◽  
Vol 63 (6) ◽  
pp. 1344-1344
Author(s):  
Marek J. Wójcik ◽  
Czeslawa Paluszkiewicz
Keyword(s):  
Salicylic Acid ◽  
Infrared Spectra ◽  
Methyl Salicylate ◽  
Hydrogen Bonded

not available

The effect of pressure on the infrared spectra of the formates of the alkali and alkaline earth metals

1977 ◽  
Vol 30 (5) ◽  
pp. 957 ◽  
Author(s):  
SD Hamann ◽  
E Spinner
Keyword(s):  
Infrared Spectra ◽  
Phase Iii ◽  
Isotopic Dilution ◽  
Temperature Phase ◽  
Effect Of Pressure ◽  
Main Effect ◽  
Crystalline Salt ◽  
Frequency Changes ◽  
Metal Formates ◽  
Sodium And Potassium

The infrared spectra of the solid metal formates HCO2Li, HCO2Li,H2O, HCO2Na, DCO2Na, H13CO2Na, HCO2K, DCO2K, HCO2Rb, DCO2Rb, HCO2Cs, DCO2Cs, (HCO2)2Ca, (HCO2)2Sr, (HCO2)2Ba and (HCO2)2Pb have been measured in the pressure range 0-42 kbar at 25�C. For the sodium salt two new modifications formed at high pressure have been observed, but the potassium, rubidium and caesium salts show only one phase transition. A phase change, though only at pressures far above 42 kbar, is indicated also for the calcium, the barium and probably the anhydrous lithium salt. The various spectral responses to changes in pressure strongly indicate that in the form prevailing at ordinary pressure and temperature, phase I, the formates of sodium and potassium have the same type of molecular packing in the crystal structure. Phases II of the sodium and potassium salt appear to belong to a new modification (?C?), whereas phase III of the sodium and phase II of the caesium salt belong to the modification ?B? previously observed in disc spectra. In a given phase, the effect of pressure on the formate vibration frequencies is sometimes quite different for the pure crystalline salt in bulk and for the same species when isolated by isotopic dilution. In these cases the main effect of pressure is that on the intermolecular coupling of vibrations. Several frequency changes accompanying phase transitions, by contrast, are essentially unchanged on isotopic dilution and arise mainly from changes in the effective intramolecular force constants.

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