Autodetachment spectroscopy of vibrationally excited acetaldehyde enolate anion, CH2CHO-
The autodetachment spectrum of acetaldehyde enolate anion, CH2CHO-, is recorded near 14180 cm-1 using a coaxial laserion threshold photodetachment spectrometer. The spectrum repreents transitions from ν=1 in the ν3 CCO bending mode of CH2CHO- to ν=0 in the autodetaching dipole-bound state of the anion. The 32 rotationally resolved (0, 1) hot band transitions reported here were fit to Watson's A-reduced Hamiltonian in conjunction with the previously reported (0, 0) transitions. Rotational constants for ν3 ν=1 of the ground electronic state are determined to be A=2.782(2) cm-1, B=1.3619(4) cm-1, and C=0.3147(4) cm-1. The (O, 1) band origin is 14186.928(8) cm-1, which places ω0 for the ν3 mode at 525.82(1) cm-1. © 1992.
Publication Source (Journal or Book title)
Mullin, A., Murray, K., Schulz, C., Szaflarski, D., & Lineberger, W. (1992). Autodetachment spectroscopy of vibrationally excited acetaldehyde enolate anion, CH2CHO-. Chemical Physics, 166 (1-2), 207-213. https://doi.org/10.1016/0301-0104(92)87019-6