Three-dimensional time-dependent quantum mechanical method has been used to study the influence of orientation, rotation, and vibration on the dissociation of water molecule on Cu(111) surface, using London–Eyring–Polanyi–Sato potential energy surface. Our calculations show that dependency of dissociation probability on the initial orientation of the molecule changes with the vibrational state of the molecule. It has also been found that for v0 = 0 and 1, where v0 stands for the vibrational state of the pseudo diatomic HO–H, the rotational excitation of the molecule increases the reactivity, whereas for v0 = 2, the rotational excitation of the molecule decreases the reactivity. Vibrational excitation of the molecule greatly enhances the dissociation probability.
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7 September 2012
Research Article|
September 06 2012
Water dissociation on Cu (111): Effects of molecular orientation, rotation, and vibration on reactivity Available to Purchase
Arobendo Mondal;
Arobendo Mondal
Indian Institute of Science Education and Research Kolkata
, Mohanpur 741252, India
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H. Seenivasan;
H. Seenivasan
Indian Institute of Science Education and Research Kolkata
, Mohanpur 741252, India
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Ashwani K. Tiwari
Ashwani K. Tiwari
a)
Indian Institute of Science Education and Research Kolkata
, Mohanpur 741252, India
Search for other works by this author on:
Arobendo Mondal
Indian Institute of Science Education and Research Kolkata
, Mohanpur 741252, India
H. Seenivasan
Indian Institute of Science Education and Research Kolkata
, Mohanpur 741252, India
Ashwani K. Tiwari
a)
Indian Institute of Science Education and Research Kolkata
, Mohanpur 741252, India
a)
E-mail: [email protected].
J. Chem. Phys. 137, 094708 (2012)
Article history
Received:
July 16 2012
Accepted:
August 17 2012
Citation
Arobendo Mondal, H. Seenivasan, Ashwani K. Tiwari; Water dissociation on Cu (111): Effects of molecular orientation, rotation, and vibration on reactivity. J. Chem. Phys. 7 September 2012; 137 (9): 094708. https://doi.org/10.1063/1.4749246
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