TY - JOUR
T1 - Rotational propensities in the state selection of NH3+ by pulsed-field ionization
AU - Dickinson, H
AU - Rolland, D
AU - Softley, TP
PY - 1997/8/1
Y1 - 1997/8/1
N2 - NH+3 ions have been prepared in unique vibration–rotation states v+2, N+, K+, by pulsed–field ionization of high Rydberg states of NH3, populated by two–colour multiphoton excitation. The selected states, ranging from v+3=0 to 7 and N+, K+ ≤ 4 are accessed via the B and C′ states as intermediates. The application of multichannel quantum defect theory to the understanding of the rotational propensities in the mass–analysed threshold ionization spectra is discussed. It is demonstrated that the interactions of the Rydberg pseudo–continuum both with bound Rydberg states and with other continua can be modelled.
AB - NH+3 ions have been prepared in unique vibration–rotation states v+2, N+, K+, by pulsed–field ionization of high Rydberg states of NH3, populated by two–colour multiphoton excitation. The selected states, ranging from v+3=0 to 7 and N+, K+ ≤ 4 are accessed via the B and C′ states as intermediates. The application of multichannel quantum defect theory to the understanding of the rotational propensities in the mass–analysed threshold ionization spectra is discussed. It is demonstrated that the interactions of the Rydberg pseudo–continuum both with bound Rydberg states and with other continua can be modelled.
U2 - 10.1098/rsta.1997.0078
DO - 10.1098/rsta.1997.0078
M3 - Article
SN - 1364-503X
VL - 355
SP - 1585
EP - 1606
JO - Royal Society of London. Philosophical Transactions A. Mathematical, Physical and Engineering Sciences
JF - Royal Society of London. Philosophical Transactions A. Mathematical, Physical and Engineering Sciences
ER -