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Journal Article

High-resolution UV spectroscopy of 1-Indanol

MPS-Authors
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Hernandez-Castillo,  Alicia Odette
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Bischoff,  Johannes
Molecular Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons257028

Lee,  Ju Hyeon
Molecular Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons232475

Langenhan,  Jennifer
Molecular Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons183285

Karra,  Mallikarjun
Molecular Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21859

Meijer,  Gerard
Molecular Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons213879

Eibenberger,  Sandra
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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d0cp06170k.pdf
(Publisher version), 6MB

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Citation

Hernandez-Castillo, A. O., Bischoff, J., Lee, J. H., Langenhan, J., Karra, M., Meijer, G., et al. (2021). High-resolution UV spectroscopy of 1-Indanol. Physical Chemistry Chemical Physics. doi:10.1039/D0CP06170K.


Cite as: http://hdl.handle.net/21.11116/0000-0007-EFF5-8
Abstract
We report on rotationally resolved laser induced fluorescence (LIF) and vibrationally resolved resonance enhanced multiphoton ionization (REMPI) spectroscopy of the chiral molecule 1-indanol. Spectra of the S1 ← S0 electronic transition are recorded in a jet-cooled, pulsed molecular beam. Using two time-delayed pulsed lasers, the lifetime of the S1 state of the two most stable conformers, referred to as eq1 and ax2, is determined. The S1 ← S0 origin bands of these conformers as well as the transition to a vibrationally excited level in the S1 state of eq1 are recorded with full rotational resolution (25 MHz observed linewidth) by measuring the LIF intensity following excitation with a tuneable, narrowband cw laser. On selected rotationally resolved electronic transitions, Lamb-dips are measured to confirm the Lorentzian lifetime-contribution to the observed lineshapes. The rotationally resolved S1 ← S0 origin band of a Neon-complex of eq1 is measured via LIF as well. The fit of the rotationally resolved LIF spectra of the origin bands to those of an asymmetric rotor yields a standard deviation of about 6 MHz. The resulting spectroscopic parameters are tabulated and compared to the outcome of ab initio calculations. For both conformers as well as for the Ne-eq1 complex, the geometric structures in the S0 and S1 states are discussed. For all systems, the transition dipole moment is mainly along the long axis, the a-axis, the contributions along the b- and c-axes being about one order of magnitude smaller.