https://doi.org/10.1140/epjd/e2011-10525-6
Optical absorption spectrum of the silver dimer ion: temperature dependence measured by photodissociation and photon-trap spectroscopy
1
East Tokyo Laboratory, Genesis Research Institute,
Inc., 717–86 Futamata,
Ichikawa, Chiba
272-0001,
Japan
2
Cluster Research Laboratory, Toyota Technological Institute in
East Tokyo Laboratory, Genesis Research Institute, Inc., 717–86 Futamata, Ichikawa, Chiba
272-0001,
Japan
d
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Received:
18
September
2010
Received in final form:
19
February
2011
Published online:
17
May
2011
Abstract
The optical absorption spectrum is reported for the silver dimer cation, Ag2+, which is temperature-controlled by buffer-gas cooling in an ion trap. The measurement is performed by two methods, photodissociation and photon-trap spectroscopy. The temperature of the trapped ions is estimated from the profiles of the spectrum. The spectrum is further analyzed to evaluate the bond length, re, the vibrational frequency, ωe, and the anharmonic constant, ωexe, in the first excited electronic state based on the molecular parameters reported for the ground state. Absorption and dissociation cross sections are compared as well.
Present address: Institute for Physical Chemistry, University of Göttingen, Germany.
Deceased 25 May 2009.
Present address: Department of Chemistry, Kyushu University, 812-8581 Fukuoka, Japan
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag 2011
