Direct observation of time-dependent intramolecular vibrational relaxation in jet-cooled p-n-alkylanilines by laser photoelectron spectroscopy

Song, Xinbei; Wilkerson, Charles W.; Lucia, John; Pauls, Steven W.; Reilly, James P.

doi:10.1016/s0009-2614(90)87165-n

Cited by 47 publications

(25 citation statements)

References 27 publications

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“…Two-color excitation through the vibronic levels of the A state has been used to further characterize the IPESs of the ionized complexes, particularly through the isolation of v 6 • Due to the Au= 0 propensity rule which generally holds in the photoionization of molecules having similar geometries in their neutral and ionized forms [33], the vibrational mode that is excited in the intermediate electronic state will usually show the strongest peak in the ZEKE-PFI spectrum. 3 ) and Na(NH 3 ) complexes are shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

ZEKE-PFI spectroscopy of 1:1 complexes of sodium with water and ammonia

Rodham

Blake

1997

Chemical Physics Letters

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ZEKE-PFI (zero kinetic energy pulsed field ionization) photoelectron spectra of the Na(H 2 0), Na(D 2 0), Na(NH 3 ), and Na(ND 3 ) complexes are reported. Spectra of all four complexes were obtained by single-photon ionization, and, for the Na(NH 3 ) and Na(ND 3 ) complexes, by two-color (I+ I') photoionization as well, with the A 2 E state serving as the intermediate resonance. Improved values for the ionization energies (IE) and intermolecular vibrational frequencies of the complexes were determined. The single-photon ZEKE-PFI spectra show transitions only between states of the same vibrational symmetry, in accord with the selection rule for allowed electronic transitions. Some of the two-color ZEKE-PFI spectra, however, show strong transitions between states of different vibrational symmetry which we attribute to vibronic coupling in the intermediate state.

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Section: Resultsmentioning

confidence: 99%

ZEKE-PFI spectroscopy of 1:1 complexes of sodium with water and ammonia

Rodham

Blake

1997

Chemical Physics Letters

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“…[5][6][7][8] This advantage of time-resolved photoelectron spectroscopy has already been well demonstrated in the picosecond domain. [12][13][14] Its potential for probing molecular dynamics in the femtosecond regime has also been exploited experimentally for several systems. [5][6][7]15 Furthermore, Davies et al 8 have recently reported results of the first femtosecond photoelectron-photoion coincidence imaging studies of photodissociation dynamics.…”

Section: Introductionmentioning

confidence: 99%

Energy- and angle-resolved pump–probe femtosecond photoelectron spectroscopy: Molecular rotation

Arasaki

Takatsuka

Wang

et al. 2001

The Journal of Chemical Physics

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Articles you may be interested inWe have incorporated a classical treatment of molecular rotation into our formulation of energy-and angle-resolved pump-probe photoelectron spectroscopy. This classical treatment provides a useful approach to extracting the photoelectron signal primarily associated with vibrational dynamics in cases where rotational motion is slow and the coupling between rotational and vibrational motion is weak. We illustrate its applicability with pump-probe photoelectron spectra for wave packets on the 1 ⌺ u ϩ double-minimum state of Na 2 .

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“…9,10,12 As shown within the last couple of years, a particularly high amount of information can be extracted when the energy of the photoelectron, and thus the ion internal energy, is analyzed. [13][14][15][16][17][18][19][20][21][22][23][24][25] The photoelectron spectrum might evolve in time even when the total ion yield is almost constant, i.e., population flow between electronic states can be monitored by final state analysis. Techniques based on the detection of photoelectrons are also background free, allowing one to discriminate against timeindependent ionization signals from the pump or probe laser alone.…”

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confidence: 99%