Abstract

The microscopic structures of neat liquid nicotine and nicotine–water mixtures are examined through infrared spectroscopy and laser resonant desorption mass-spectroscopy. The infrared spectra of the solutions are analyzed using DFT calculations of homogenous and mixed hydrogen-bonded clusters. Neat nicotine and hydrated nicotine cluster are experimentally observed through IR laser resonant desorption of a nicotine/water ice mixture followed by laser ionization mass-spectrometry. A sizable fraction of those cluster ions is the result of laser ionization of small neutral clusters already present in the sample.

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