UV spectra of benzene isotopomers and dimers in helium nanodroplets

Details UV spectra of benzene isotopomers and dimers in helium nanodroplets UV spectra of benzene isotopomers and dimers in helium nanodroplets

2004-07-23

arxiv.org/abs/physics/0407122v1

Journal of Chemical Physics 121(6): 2701-2710 (2004)

Physics

Chemical Physics

20 pages, 7 figures

Scientific paper

10.1063/1.1767515

We report spectra of various benzene isotopomers and their dimers in helium nanodroplets in the region of the first Herzberg-Teller allowed vibronic transition 610 1B2u<-1A1g (the A00 transition) at ~260 nm. Excitation spectra have been recorded using both beam depletion detection and laser-induced fluorescence. Unlike for many larger aromatic molecules, the monomer spectra consist of a single "zero-phonon" line, blueshifted by ~30 cm-1 from the gas phase position. Rotational band simulations show that the moments of inertia of C6H6 in the nanodroplets are at least 6 times larger than in the gas phase. The dimer spectra present the same vibronic fine structure (though modestly compressed) as previously observed in the gas phase. The fluorescence lifetime and quantum yield of the dimer are found to be equal to those of the monomer, implying substantial inhibition of excimer formation in the dimer in helium.

Affiliated with

Also associated with

No associations

Rating

UV spectra of benzene isotopomers and dimers in helium nanodroplets does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with UV spectra of benzene isotopomers and dimers in helium nanodroplets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and UV spectra of benzene isotopomers and dimers in helium nanodroplets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-246673