NACH OBEN

High-resolution infrared spectroscopy

Spectroscopy close to absolute zero

Molecules are embedded in ultracold, superfluid helium nanodroplets at 0.37 K to investigate their structure and dynamics. Microsolvation and microaggregation of molecular clusters are studied using high-resolution infrared spectroscopy.


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Lupe
Acids behavior in ultracold interstellar space: Reaction sequence matters!

Lupe
Formation of smallest drop of acid: Four H2O and one HCl molecules are sufficient.


Lupe
Dance of three water molecules: Accurate description of interaction energy.

Lupe
Aggregation of water and propargyl alcohol: Formation of less stable structures.

Relevanteste Publikationen zu diesem Thema
  • S. Jäger, J. Khatri, P. Meyer, S. Henkel, G. Schwaab, A. Nandi, P. Pandey, K.R. Barlow, M.A. Perkins, G.S. Tschumper, J.M. Bowman, A. van der Avoird, M. Havenith, On the nature of hydrogen bonding in the H2S dimer, Nat. Commun. 15, 9540 (2024).
  • A. Chakraborty, S. Henkel, G. Schwaab, M. Havenith, Structural characterization of pyruvic acid dimer formed inside helium nanodroplets by infrared spectroscopy and ab initio study, J. Phys. Chem. A 128, 5307–5313 (2024).
  • S. Jäger, P. Meyer, K.-S. Feichtner, S. Henkel, G. Schwaab, V.H. Gessner, M. Havenith, Reaction of lithium hexamethyldisilazide (LiHMDS) with water at ultracold conditions, Phys. Chem. Chem. Phys. 24, 24089–24094 (2022).
  • G. Schwaab, R. Pérez de Tudela, D. Mani, N. Pal, T.K. Roy, F. Gabas, R. Conte, L. Durán Caballero, M. Ceotto, D. Marx, M. Havenith, Zwitter ionization of glycine at outer space conditions due to microhydration by six water molecules, Phys. Rev. Lett. 128, 033001 (2022).
  • D. Mani, T.K. Roy, J. Khatri, G. Schwaab, S. Blach, C. Hölzl, H. Forbert, D. Marx, M. Havenith, Internal electric field-induced formation of exotic linear-acetonitrile chains, J. Phys. Chem. Lett. 13, 6852–6858 (2022).
  • R. Schwan, C. Qu, D. Mani, N. Pal, G. Schwaab, J.M. Bowman, G.S. Tschumper, M. Havenith, Observation of the low frequency spectrum of water trimer as a sensitive test of the water trimer potential and the dipole moment surface, Angew. Chem. Int. Ed. 59, 11399–11407(2020).
  • R. Schwan, C. Qu, D. Mani, N. Pal, L. van der Meer, B. Redlich, C. Leforestier, J.M. Bowman, G. Schwaab, M. Havenith, Observation of the low frequency spectrum of water dimer as a sensitive test of the water dimer potential and dipole moment surfaces, Angew. Chem. Int. Ed. 58, 13119–13126 (2019).
  • D. Mani, R. Pèrez de Tudela, R. Schwan, N. Pal, S. Körning, H. Forbert, B. Redlich, A.F.G. van der Meer, G. Schwaab, D. Marx, M. Havenith, Acid solvation versus dissociation at "stardust conditions": Reaction sequence matters, Sci. Adv. 5, eaav8179 (2019).
  • D. Mani, N. Pal, M. Smialkowski, C. Beakovic, G. Schwaab, M. Havenith, Accessing different binding sites of a multifunctional molecule: IR spectroscopy of propargyl alcohol∙∙∙Water complexes in helium droplets, Phys. Chem. Chem. Phys. 21, 20582–20587 (2019).
  • Gutberlet, G. Schwaab, Ö. Birer, M. Masia, A. Kaczmarek, H. Forbert, M. Havenith, D. Marx, Aggregation induced dissociation of HCl(H2O)4 below 1 K: The smallest droplet of acid, Science 324, 1545–1548 (2009).