Berlin 2018 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 49: Soft Matter Physics: Emerging Topics, New Instruments and Methods

CPP 49.1: Talk

Wednesday, March 14, 2018, 15:00–15:15, C 230

Collective Hydration Dynamics in Binary Mixtures: A THz Time Domain Spectroscopic Study — •Debasish Das Mahanta, Dipak Kumar Das, Animesh Patra, Nirnay Samanta, and Rajib Kumar Mitra — S. N. Bose National Centre for Basic Sciences, Block-JD, Sector-III, Saltlake, Kolkata-700106

We have studied the structure and dynamics of water in its binary mixture with two amphiphilic molecules 1,2-dimethoxy ethane (DME) and dimethyl sulfoxide (DMSO) by THz time domain spectroscopy (TTDS) (0.3-1.6 THz region). In both the cases a non-ideal behavior of the mixture is found owing to the formation of water clusters. The cooperative dynamics of water in those binary mixtures, obtained from Debye relaxation of TTDS data reveals a non-monotonous behavior as a function of water concentration (Xw).