Monitoring the crystallization of tartaric acid with THz spectroscopy

Soltani, A. and Gebauer, D. and Fischer, B. and Colfen, H. and Koch, M. 2017. Monitoring the crystallization of tartaric acid with THz spectroscopy, 2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2017).

Source Title

International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz

Source Conference

2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2017)

DOI

10.1109/IRMMW-THz.2017.8066993

ISBN

9781509060481

School

School of Molecular and Life Sciences (MLS)

URI

http://hdl.handle.net/20.500.11937/67841

Collection

Curtin Research Publications

Abstract

© 2017 IEEE. We study the crystallization of L-(+)-Tartaric acid by employing attenuated total reflection THz time-domain spectroscopy (TDS). In the so-called nucleation stage, the absorption spectrum shows a broadband transient increase. Besides, we observed a transient resonance at 750 GHz. This peak can be assigned to aggregation of L-(+)-Tartaric acid molecules including hydrated water molecules. Furthermore, the THz data reveal the vibration of clusters in the solution phase which is confirmed by analytical ultracentrifugation technique.