Special Seminar

Name: Dr. Sayan Bagchi

Affiliation: Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory

Title: Dynamics in Heterogeneous Systems: A 2D IR Spectroscopic Perspective

Date & Time: Wednesday, 10th April at 04.00 p.m.

Venue: AG09/11 Lecture Hall, Chemical Sciences Building


Heterogeneous systems are prevalent in chemistry, materials science, and biology, where spatial fluctuations give rise to dynamic heterogeneity. Some of these fluctuations occur on ultrafast timescales, typically within tens to hundreds of picoseconds. In this presentation, I will share the results of 2D IR spectroscopic investigations that illuminate the fluctuations in various heterogeneous systems, ranging from green solvents to quantum dots to proteins. My findings will encompass topics such as hydrogen bond dynamics, weaker non-covalent interactions, and interactions at interfaces. The results will demonstrate that the timescales of these fluctuations can serve as proxies for these interactions.