Centre for Modeling & Simulation
Savitribai Phule Pune University

Project Description: I. Some ab initio Investigations on Hydrogen-Bonded Molecular Clusters: Cluster Traps, External Fields and Redox Properties II. Polarizabilities of Atoms and Molecules in Excited States

Investigator

Rajeev K. Pathak, Department of Physics

Project Summary

Hydrogen bonding in molecular crystals is attributed to the attractive dipole-dipole interaction amongst the hydrogen-rich molecular units (monomers). Noted examples are H2O, HF, Nh4, H2O2, electron solvating by water molecules, and so forth . These Relatively weakly (with a binding energy of ~ 5 to 8 kcal/mol per H-bond) bound pose a theoretical challenge in that the electron-electron correlation effects have to be very accurately represented, beyond the simple Hartree-Fock (H-F) description.

It is envisaged to study certain dipole-bonded molecular clusters such as hydrogen peroxide solvation and its implications; molecular clusters in external electric field giving molecular Stark effect and modifying the IR spectrum, etc.

Another study to be carried out is the polarizabilities of atoms and molecules in excited states, using variants of the density functional theory.

Recent Publications of the Investigator
(only those relevant for the project)

  1. S.A. Kulkarni and R.K. Pathak, Chem. Phys. Letters 336, 278 (2001).
  2. S.A. Kulkarni, L.J. Bartolotti and R.K. Pathak, J. Chem. Phys. 113, 2697 (2000).
  3. S.A. Kulkarni , L.J. Bartolotti and R.K. Pathak (to be published)
  4. M.k. Harbola, R.R. Zope, A. Kshirsagar and R.K. Pathak (Communicated).

Qualifications

M. Sc. Physics or Chemistry with minimum 55% or equivalent grade. The prospective candidate MUST possess an excellent quantum mechanics background and familiarity with the GAUSSIAN suite of programs as well as with the density functional theory. Also, excellent omputational abilities are expected.

Additional Information


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