Free jet excitation and emission spectra of diphenylbutadiene

AUTOR(ES)

Heimbrook, Lou Ann

RESUMO

Highly resolved emission and one-photon fluorescence excitation spectra for 1,4-diphenyl-1,3-butadiene seeded in a supersonic expansion of helium have been measured. The spectra show a long-lived (52.8 nsec for excitation at the 0-0) state at 29,652.5 cm-1, approximately 1,150 cm-1 below the well-characterized 1Bu state, which is assigned as 1Ag—i.e., we have directly observed a polyene 1Ag state in the gas phase. Emission spectra and decay times for the 1Ag state were measured at a number of different excitation energies. These data clarify the ordering of excited singlet states and the photophysical behavior of diphenylbutadiene.

Documentos Relacionados

• Analysis of modified bowtie nanoantennas in the excitation and emission regimes
• Distorted wave emission function (DWEF) calculations of RHIC HBT and spectra
• ON THE SPECTRA OF NONTHERMAL RADIO EMISSION OF THE MILKY WAY AND OTHER GALAXIES
• Nebular and auroral emission lines of [Cl iii] in the optical spectra of planetary nebulae
• Emission lines of [K v] in the optical spectra of gaseous nebulae