Competitive nuclear quantum effect and H/D isotope effect on torsional motion of H2O2: An ab initio path integral molecular dynamics study

2022 ◽  
Vol 1208 ◽  
pp. 113542
Author(s):  
Taro Udagawa ◽  
Kazuaki Kuwahata ◽  
Masanori Tachikawa
Keyword(s):  
Molecular Dynamics ◽  
Ab Initio ◽  
Isotope Effect ◽  
Path Integral ◽  
Quantum Effect ◽  
Torsional Motion

AB INITIO PATH INTEGRAL STUDY ON ISOTOPE EFFECT OF AMMONIA MOLECULE

2005 ◽  
Vol 04 (01) ◽  
pp. 175-181 ◽  
Author(s):  
MASANORI TACHIKAWA ◽  
MOTOYUKI SHIGA
Keyword(s):  
Molecular Dynamics ◽  
Ab Initio ◽  
Isotope Effect ◽  
Path Integral ◽  
Quantum Chemical ◽  
Degrees Of Freedom ◽  
Dynamics Simulation ◽  
Ammonia Molecule ◽  
Quantum Chemical Approach ◽  
Quantum Feature

We have applied ab initio path integral molecular dynamics simulation to study the quantum feature and proton/deuteron isotope effect of ammonia molecule. This method treats all the rotational and vibrational degrees of freedom fully quantum mechanically, while the potential energies of the respective molecular configurations are calculated "on the fly" using ab initio quantum chemical approach. The differences on the geometry and the electronic structure between NH 3 and ND 3 molecules are investigated in detail.

Geometric Isotope Effect on the N2H7+ Cation and N2H5− Anion by Ab Initio Path Integral Molecular Dynamics Simulation

ChemPhysChem ◽  
2008 ◽  
Vol 9 (3) ◽  
pp. 383-387 ◽  
Author(s):  
Hiroaki Ishibashi ◽  
Aiko Hayashi ◽  
Motoyuki Shiga ◽  
Masanori Tachikawa
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Ab Initio ◽  
Isotope Effect ◽  
Path Integral ◽  
Dynamics Simulation

scholarly journals Car–Parrinello and path integral molecular dynamics study of the intramolecular hydrogen bonds in the crystals of benzoylacetone and dideuterobenzoylacetone

2014 ◽  
Vol 16 (42) ◽  
pp. 23026-23037 ◽  
Author(s):  
Piotr Durlak ◽  
Zdzisław Latajka
Keyword(s):  
Molecular Dynamics ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Ab Initio ◽  
Path Integral ◽  
Molecular Crystal ◽  
Short Hydrogen Bond ◽  
Deuterated Analogue ◽  
Dynamics Simulations ◽  
Intramolecular Hydrogen

The dynamics of the intramolecular short hydrogen bond in the molecular crystal of benzoylacetone and its deuterated analogue are investigated using ab initio molecular dynamics simulations.

Sign in / Sign up

Export Citation Format

Share Document