Change in energy of hydrogen bonds upon excitation of 6-aminocoumarin: TDDFT/EFP1 study

2013 ◽  
Vol 37 (9) ◽  
pp. 2648 ◽  
Author(s):  
Mariyappa Ramegowda
Keyword(s):  
Hydrogen Bonds ◽  
Energy Of Hydrogen Bonds

The energy of hydrogen bonds in aqueous suspensions of nanodiamonds with different surface functionalization

2018 ◽  
Vol 50 (3) ◽  
pp. 387-395 ◽  
Author(s):  
K.A. Laptinskiy ◽  
A.N. Bokarev ◽  
S.A. Dolenko ◽  
I.L. Plastun ◽  
O.E. Sarmanova ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Surface Functionalization ◽  
Aqueous Suspensions ◽  
Energy Of Hydrogen Bonds

Tuning the Interaction Energy of Hydrogen Bonds: The Effect of the Substituent

2011 ◽  
Vol 115 (45) ◽  
pp. 12561-12571 ◽  
Author(s):  
Ignasi Mata ◽  
Elies Molins ◽  
Ibon Alkorta ◽  
Enrique Espinosa
Keyword(s):  
Hydrogen Bonds ◽  
Interaction Energy ◽  
Energy Of Hydrogen Bonds

scholarly journals A Thermodynamic Study of Methane Hydrates Formation In Glass Beads

2016 ◽  
Vol 16 (1) ◽  
pp. 15
Author(s):  
Tintin Mutiara ◽  
Budhijanto Budhijanto ◽  
I Made Bendiyasa ◽  
Imam Prasetyo
Keyword(s):  
Hydrogen Bonds ◽  
Gas Hydrates ◽  
Methane Hydrate ◽  
Hydrate Formation ◽  
Glass Beads ◽  
Water Molecules ◽  
Equilibrium Pressure ◽  
Natural Gas Hydrates ◽  
System Pressure ◽  
Energy Of Hydrogen Bonds

Natural gas hydrates are non-stoichiometry compounds, in which the molecules of gas are trapped in crystalline cells consisting of water molecules retained by energy of hydrogen bonds. The experiments of Methane hydrate formation are performed at constant temperature in a reactor filled with various sizes of glass beads and water. Methane gas was fed into the reactor at various initial pressures. Equilibrium condition was reached when the system pressure did not change. The experimental results showed that the size of the glass beads gave very small effect on the equilibrium pressure of methane hydrate formation, so the effect could be neglected. In this study, the equation of Langmuir constant was Ci,CH4=(1/RT)exp[A+(B/T)] with the values of A and B for small cages were 6.8465 and 18.0342. The values of A and B for large cages were 7.7598 and 18.0361

Understanding and Measurement for the Binding Energy of Hydrogen bonds of Biomass-Derived Hydroxyl Compounds

2018 ◽  
Vol 122 (3) ◽  
pp. 843-848 ◽  
Author(s):  
Yang Luo ◽  
Hong Ma ◽  
Yuxia Sun ◽  
Penghua Che ◽  
Xin Nie ◽  
...  
Keyword(s):  
Binding Energy ◽  
Hydrogen Bonds ◽  
Energy Of Hydrogen Bonds ◽  
Hydroxyl Compounds

scholarly journals Energy of Hydrogen Bonds Probed by the Adhesion of Functionalized Lipid Layers

2002 ◽  
Vol 83 (6) ◽  
pp. 3675-3681 ◽  
Author(s):  
David Tareste ◽  
Frédéric Pincet ◽  
Eric Perez ◽  
Stéphane Rickling ◽  
Charles Mioskowski ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Energy Of Hydrogen Bonds ◽  
Lipid Layers

scholarly journals Qualitative Analysis of Clustering in Aqueous Alcohol Solutions

2018 ◽  
Vol 63 (6) ◽  
pp. 521 ◽  
Author(s):  
V. E. Chechko ◽  
V. Ya. Gotsulskyi
Keyword(s):  
Hydrogen Bonds ◽  
Qualitative Analysis ◽  
Aqueous Solutions ◽  
Solution Concentration ◽  
Aqueous Alcohol ◽  
Aqueous Alcohol Solutions ◽  
Monohydric Alcohols ◽  
Energy Of Hydrogen Bonds ◽  
Alcohol Alcohol

The specific features of clustering in the aqueous solutions of monohydric alcohols with concentrations higher than that at the peculiar point are discussed. Clustering is a result of the formation of hydrogen bonds between water and alcohol molecules, the energy of which some-what exceeds the energy of hydrogen bonds in the water-water and alcohol-alcohol molecular pairs. Elementary clusters are assumed to be formed, whose composition is fixed at the solution concentrations lower than that at the peculiar point and changes according to a certain law at higher concentrations. The solution clustering degree was determined as a function of the solution concentration and the temperature.

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