Heidelberg 2015 – scientific programme

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MO: Fachverband Molekülphysik

MO 14: Cold Molecules 2

MO 14.2: Talk

Wednesday, March 25, 2015, 15:00–15:15, PH/HS1

Mikrosolvation of Phthalocyanine in superfluid Helium nanodroplets revisited — Tobias Premke, Philipp Meier, and •Alkwin Slenczka — Universität Regensburg, 93053 Regensburg, Germany

Phthalocyanine was one of the first molecules investigated in superfluid Helium droplets by means of electronic spectroscopy [1, 2]. It became one of the best investigated organic dopant species. Inhomogeneous line broadening [3, 4], rotational fine structure [5], excited state life times [6], the Helium solvation layer [7-9], and the corresponding phonon wing [2, 10] have been studied by fluorescence excitation spectra and for some of the phenomena in combination with dispersed emission spectra. A recent resumption of electronic spectroscopy of Phthalocyanine in superfluid Helium droplets revealed new and unexpected results which put some of the previously reported results into question. Besides revisions of some particular details the recent study will be contrasted with the current understanding of microsolvation in superfluid Helium droplets. [1] M. Hartmann, PhD Thesis, Göttingen, 1997. [2] M. Hartmann et al., Phys.Chem.Chem.Phys., 4 (2002) 4839. [3] A. Slenczka et al., J.Chem.Phys. 115 (2001) 10199. [4] B. Dick, A. Slenczka, J.Chem.Phys. 115 (2001) 10206. [5] R. Lehnig et al., J.Chem.Phys. 121 (2004) 9396. [6] D. Pentlehner et al., J.Phys.Chem.A, 115 (2011) 7034. [7] R. Lehnig, A. Slenczka, J.Chem.Phys. 118 (2003) 8256. [8] R. Lehnig, A. Slenczka, ChemPhysChem, 5 (2004) 1014. [9] R. Lehnig, A. Slenczka, J.Chem.Phys. 120 (2004) 5064. [10] R. Lehnig et al., J.Phys.Chem.A, 111 (2007) 7576.