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Zero kinetic energy photoelectron study of the naphthalene-Ar van der Waals complex

✍ Scribed by T. Vondrák; S. Sato; K. Kimura

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
332 KB
Volume
261
Category
Article
ISSN
0009-2614

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✦ Synopsis

The naphthalene-Ar van der Waals complex formed in a supersonic jet expansion was studied. Mass-selected multiphoton ionization and zero kinetic energy (ZEKE) photoelectron spectra obtained in the two-color (1 + 1') ionization scheme are reported. The SI-S 0 %o transition in the complex is red-shifted by 15 cm -~ and its adiabatic ionization energy is 65607 cm-~ (+ 3 cm ~), 85 cm-~ lower than that of bare naphthalene. Ab initio calculations at the level of second order Moller-Plesset theory give a potential energy minimum for the Ar atom at the distance of 3.4 A above the center of symmetry of naphthalene and the binding energy of 430 cm ] for the neutral complex.

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