scholarly journals Gas-phase conformational preference of the smallest saccharide (glycolaldehyde) and its hydrated complexes with bridged hydrogen bonding

RSC Advances ◽  
2017 ◽  
Vol 7 (11) ◽  
pp. 6242-6250 ◽  
Author(s):  
Pengchao Wang ◽  
Yongjun Hu ◽  
Huaqi Zhan ◽  
Jiaxin Chen
Keyword(s):  
Hydrogen Bonding ◽  
Gas Phase ◽  
Interstellar Space ◽  
Conformational Preference ◽  
Sugar Unit ◽  
Hydrated Complexes

Glycoaldehyde (GA, HOCH2CHO) is the simplest sugar unit of the carbohydrates and the only sugar to have been detected in interstellar space to date.

scholarly journals Surface Reactions in Interstellar Space

2002 ◽  
Vol 12 ◽  
pp. 55-57 ◽  
Author(s):  
Eric Herbst
Keyword(s):  
Surface Chemistry ◽  
Gas Phase ◽  
Condensed Phase ◽  
Current Knowledge ◽  
Surface Reactions ◽  
Future Research ◽  
Interstellar Space ◽  
Interstellar Molecules ◽  
Grain Surface

AbstractIt is impossible to explain the abundances of some gas-phase and most condensed-phase interstellar molecules without the use of grain chemistry. Nevertheless, grain-surface chemistry is relatively poorly understood for a variety of reasons. Our current knowledge of this chemistry and its use in interstellar models is discussed along with specific needs for future research.

Synergy of Water and Ammonia Hydrogen Bonding in a Gas-Phase Reaction

2019 ◽  
Vol 123 (7) ◽  
pp. 1337-1342 ◽  
Author(s):  
Wen Chao ◽  
Cangtao Yin ◽  
Yu-Lin Li ◽  
Kaito Takahashi ◽  
Jim Jr-Min Lin
Keyword(s):  
Hydrogen Bonding ◽  
Gas Phase ◽  
Phase Reaction ◽  
Gas Phase Reaction

Water-Mediated Selenium Hydrogen-Bonding in Proteins: PDB Analysis and Gas-Phase Spectroscopy of Model Complexes

2019 ◽  
Vol 123 (28) ◽  
pp. 5995-6002 ◽  
Author(s):  
Kamal K. Mishra ◽  
Santosh K. Singh ◽  
Satish Kumar ◽  
Gulzar Singh ◽  
Biplab Sarkar ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Gas Phase ◽  
Model Complexes ◽  
Gas Phase Spectroscopy

Hydrogen bonding in the gas phase: the thermodynamic properties of hydrogen fluoride-ether complexes and their far infrared spectra

1971 ◽  
Vol 322 (1548) ◽  
pp. 137-146 ◽  
Keyword(s):  
Hydrogen Bonding ◽  
Gas Phase ◽  
Infrared Spectra ◽  
Equilibrium Constants ◽  
Far Infrared ◽  
Methyl Ethyl ◽  
Rotational Contour ◽  
Stretching Vibration ◽  
Conformational Rearrangements ◽  
Far Infrared Spectra

The equilibrium constants of gas-phase complexes of HF with dimethyl, methyl ethyl and diethyl ether have been measured at several temperatures using the Benesi-Hildebrand approximation on the absorption band of the HF stretching vibration in the complex. From these, values of Δ H of — 43, — 38 and — 30 kJ mol -1 respectively, have been determined. They are interpreted in terms of conformational rearrangements of the ethers when they form hydrogen bonds. The far infrared spectra of the complexes with both HF and DF have also been recorded and in each case a band observed at around 180 cm -1 which is assigned to the intermolecular stretching mode of vibration. For the complex between HF and dimethyl ether a rotational contour has been observed at about 10 cm -1 .

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