HIGH-RESOLUTION INFRARED SPECTROSCOPY OF IMIDAZOLE CLUSTERS IN HELIUM DROPLETS USING QUANTUM CASCADE LASERS

Mani, Devendra

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https://hdl.handle.net/2142/97047 Copy

Description

Title

HIGH-RESOLUTION INFRARED SPECTROSCOPY OF IMIDAZOLE CLUSTERS IN HELIUM DROPLETS USING QUANTUM CASCADE LASERS

Author(s)

Mani, Devendra

Contributor(s)

• Havenith, Martina
• Schwaab, Gerhard
• Pal, Nitish
• Can, Cihad

Issue Date

6/20/2017

Keyword(s)

Small molecules

Abstract

Imidazole ring is a part of many biologically important molecules and drugs. Imidazole monomer, dimer and its complexes with water have earlier been studied using infrared spectroscopy in helium droplets$^{1,2}$ and molecular beams$^{3}$. These studies were focussed on the N-H and O-H stretch regions, covering the spectral region of 3200-3800 wn._x000d_ _x000d_ We have extended the studies on imidazole clusters into the ring vibration region. The imidazole clusters were isolated in helium droplets and were probed using a combination of infrared spectroscopy and mass spectrometry. The spectra in the region of 1000-1100 wn and 1300-1460 wn were recorded using quantum cascade lasers. Some of the observed bands could be assigned to imidazole monomer and higher order imidazole clusters, using pickup curve analysis and ab initio calculations. Work is still in progress. The results will be discussed in detail in the talk. _x000d_ \textbf{References}:_x000d_ textbf{1)} M.Y. Choi and R.E. Miller, textit{J. Phys. Chem. A}, textbf{110}, 9344 (2006)._x000d_ textbf{2)} M.Y. Choi and R.E. Miller, textit{Chem. Phys. Lett.}, textbf{477}, 276 (2009)._x000d_ textbf{3)} J. Zischang, J. J. Lee and M. Suhm, textit{J. Chem. Phys.}, textbf{135}, 061102 (2011)._x000d_ _x000d_ textbf{Note:} This work was supported by the Cluster of Excellence RESOLV (Ruhr-Universitat EXC1069) funded by the Deutsche Forschungsgemeinschaft.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

English

Permalink

http://hdl.handle.net/2142/97047

DOI

10.15278/isms.2017.TK09

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