scholarly journals Ab Initio Molecular Dynamics Studies of the Effect of Solvation by Room-Temperature Ionic Liquids on the Vibrational Properties of a N719-Chromophore/Titania Interface

2018 ◽  
Vol 122 (46) ◽  
pp. 26464-26471
Author(s):  
Aaron Byrne ◽  
Yogeshwaran Krishnan ◽  
Niall J. English
Keyword(s):  
Molecular Dynamics ◽  
Ionic Liquids ◽  
Ab Initio ◽  
Room Temperature ◽  
Ab Initio Molecular Dynamics ◽  
Room Temperature Ionic Liquids ◽  
Vibrational Properties

Structural stabilities and transformations in cationized asparagine at finite temperatures: An ab initio molecular dynamics study

2014 ◽  
Vol 13 (04) ◽  
pp. 1450024
Author(s):  
Shoutian Sun ◽  
Jianwen Liu ◽  
Zhi-Feng Liu
Keyword(s):  
Molecular Dynamics ◽  
Ab Initio ◽  
Structural Transformation ◽  
Vibrational Spectra ◽  
Room Temperature ◽  
Ab Initio Molecular Dynamics ◽  
And Shifts ◽  
Torsional Angles

The cationic complexes of Asparagine (Asn), M +( Asn ), with M + = Li +, Na +, K +, Cs +, and H +, are models for studying the interaction between cations and Asn. Ab initio molecular dynamics (AIMD) method is employed to simulate their behavior at finite temperatures. Structural transformation between conformers is observed, which becomes progressively easier as the cation varies from Li +, to Na +, K +, Cs +, and H +. The fluctuation of the M +– N and M +– O distances and rotation of torsional angles are significant even at room temperature for K +, Cs + and H +. Vibrational profiles based on AIMD trajectories provide insights into the broadening and shifts in relative intensities observed in the vibrational spectra measured by infrared multi-photon dissociation (IRMPD) experiments.

Dissolution of cellulose in ionic liquids: an ab initio molecular dynamics simulation study

2014 ◽  
Vol 16 (33) ◽  
pp. 17458-17465 ◽  
Author(s):  
Rajdeep Singh Payal ◽  
Sundaram Balasubramanian
Keyword(s):  
Molecular Dynamics ◽  
Hydrogen Bonding ◽  
Ionic Liquids ◽  
Molecular Dynamics Simulation ◽  
Ab Initio ◽  
Simulation Study ◽  
Molecular Hydrogen ◽  
Dynamics Simulation ◽  
Ab Initio Molecular Dynamics ◽  
Dynamics Simulations

Dissolution of cellulose in ionic liquids involves breaking of its inter- and intra-molecular hydrogen bonding network, as seen through ab initio molecular dynamics simulations.

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