SGR group homepage

The dept. of Inorganic and Physical Chemistry (IPC) at the Indian Institute of Science (IISc), Bangalore, is where we work, amidst a wonderful set of colleagues.

The group is located in B312 of the Chemical Science Building, where you'll find Dr. Mrinal Arandhara, Ms. Dipangkali Sarma and Mr. Stephen Hangsing hard at work. Dr. Sai Ramesh's office is B302.

Esrtwhile members: Dr. Debabrata Bhattacharyya (post-doc with Prof. Jer-Lai Kuo, IAMS, Academia Sinica, Taiwan), Dr. Jyotirmoy Ray (post-doc with Prof. Tamar Seideman at Northwestern University, USA), Dr. Bijyalaxmi Athokpam (post-doc with Prof. Damien Laage at ENS-Paris, France)

We are generally interested in vibrational and vibronic dynamics in the gas and solution phases. Our recent papers are listed below.

• Nuclear quantum effects in gas-phase ethylene glycol
  M. Arandhara and S. G. Ramesh
  Phys. Chem. Chem. Phys.   26, 19529 (2024). DOI: 10.1039/D4CP00700J
• Assessing Permutationally Invariant Polynomial and Symmetric Gradient Domain Machine Learning Potential Energy Surfaces for H₃O₂^–
  Priyanka Pandey, Mrinal Arandhara, Paul L. Houston, Chen Qu, Riccardo Conte, Joel M. Bowman, and Sai G. Ramesh
  J. Phys. Chem. A 128, 3212 (2024). DOI: 10.1021/acs.jpca.4c01044
• Nuclear quantum effects in hydroxide hydrate along the H-bond bifurcation pathway
  M. Arandhara and S. G. Ramesh
  J. Phys. Chem. A 128, 1600 (2024). DOI: 10.1021/acs.jpca.3c08027
• Nuclear quantum effects in gas-phase 2-fluoroethanol
  M. Arandhara and S. G. Ramesh
  Phys. Chem. Chem. Phys.  26, 6885 (2024). DOI: 10.1039/D3CP05657K
• Wavepacket dynamical study of H-atom tunneling in catecholate monoanion: Role of intermode couplings and energy flow
  D. Bhattacharyya and S. G. Ramesh
  Phys. Chem. Chem. Phys.  25, 1923 (2023). DOI: 10.1039/d2cp03803j
• Multidimensional H-atom tunneling in the catecholate monoanion
  D. Bhattacharyya and S. G. Ramesh
  Phys. Chem. Chem. Phys.  24, 10887 (2022). DOI: 10.1039/d1cp04590c
• Excited-state proton transfer in the 2-aminopyridine dimer: a surface hopping study
  J. Ray and S. G. Ramesh
  Phys. Chem. Chem. Phys.  24, 7274 (2022). DOI: 10.1039/d1cp05517h
• N-H photodissociation dynamics of electronically excited aniline: a three-dimensional quantum wavepacket study
  J. Ray and S. G. Ramesh
  Phys. Chem. Chem. Phys.  23, 15727 (2021). DOI: 10.1039/d1cp01990b
• Alkyl hydrogen atom abstraction reactions of the CN radical with ethanol
  B. Athokpam and S. G. Ramesh
  J. Chem. Phys.  148, 134503 (2018). DOI: 10.1063/1.5021634
• Conical intersections involving the lowest ¹πσ^∗ state in aniline: Role of the NH₂ group
  J. Ray and S. G. Ramesh
  Chem. Phys.   55, 77 (2018). DOI: 10.1016/j.chemphys.2018.03.015
• Effect of hydrogen bonding on the infrared absorption intensity of OH stretch vibrations
  B. Athokpam, R. H. McKenzie, S. G. Ramesh
  Chem. Phys., 488-489, 43-54 (2017). DOI: 10.1016/j.chemphys.2017.03.006