WEAK HYDROGEN BONDS FROM ALIPHATIC AND FLUORINATED ALOCOHOLS TO MOLECULAR NITROGEN DETECTED BY SUPERSONIC JET FTIR SPECTROSCOPY

Complexes of organic molecules with the main component of earth’s atmosphere are of interest,footnote{Kuma, S., Slipchenko, M. N., Kuyanov, K. E., Momose, T., Vilesov, A. F., Infrared Spectra and Intensities of the H$_2$O and N$_2$ Complexes in the Range of the $nu_1$- and $nu_3$-Bands of Water, textit{J. Phys. Chem. A}, textbf{2006}, textit{110}, 10046--10052.} also for a stepwise understanding of the phenomenon of matrix isolation.footnote{Coussan, S., Bouteiller, Y., Perchard, J. P., Zheng, W. Q., Rotational Isomerism of_x000d_ Ethanol and Matrix Isolation Infrared Spectroscopy, textit{J. Phys. Chem. A}, textbf{1998}, textit{102}, 5789--5793.} Via its large quadrupole moment, nitrogen binds strongly to polarized OH groups in hydrogen-bonded dimers. Further complexation leads to a smooth spectral transition from free to embedded molecules which we probe in supersonic jets. Results for 1,1,1,3,3,3-hexafluoro-2-propanol,footnote{Suhm, M. A., Kollipost, F., Femtisecond single-mole infrared spectroscopy of molecular clusters, textit{Phys. Chem. Chem. Phys.}, textbf{2013}, textit{15}, 10702--10721.} methanol,footnote{Larsen, R. W., Zielke, P., Suhm, M. A., Hydrogen bonded OH stretching modes of methanol clusters: a combined IR and Raman isotopomer study, textit{J. Chem. Phys.}, textbf{2007}, textit{126}, 194307.} $t$-butyl alcohol,footnote{Zimmermann, D., Häber, T., Schaal, H., Suhm, M. A., Hydrogen bonded rings, chains and lassos: The case of $t$-butyl alcohol clusters, textit{Mol. Phys.}, textbf{2001}, textit{99}, 413--425.} and the conformationally more complex ethanolfootnote{Wassermann, T. N., Suhm, M. A., Ethanol Monomers and Dimers Revisited: A Raman Study of Conformational Preferences and Argon Nanocoating Effects, textit{J. Phys. Chem. A}, textbf{2010}, textit{114}, 8223--8233.} are presented and assigned with the help of quantum chemical calculations