Knowledge Bank

The photodetachment dynamics of the C$\mathrm{<mrow\; data-mjx-texclass="ORD">4</mrow>}$H$\mathrm{<mrow\; data-mjx-texclass="ORD">9</mrow>}$O$\mathrm{<mrow\; data-mjx-texclass="ORD">-</mrow>}$ anion, produced by proton abstraction from tert-butanol has been studied using a cryogenically-cooled linear electrostatic ion trap to store a fast ion beam}. The ion trap is coupled with a Photoelectron-Photofragment Coincidence spectrometer for a kinematically complete experiment in which dissociative neutral intermediates of known internal energy are created by photodetachment of a stable molecular anion. By collecting all resultant neutral fragments from the dissociation event in coincidence with the detached electron using time- and position-sensitive detectors, the correlated momenta and energies of all products can be determined. At 388, 537, and 600nm, both stable and dissociative photodeatchment processes of C$\mathrm{<mrow\; data-mjx-texclass="ORD">4</mrow>}$H$\mathrm{<mrow\; data-mjx-texclass="ORD">9</mrow>}$O$\mathrm{<mrow\; data-mjx-texclass="ORD">-</mrow>}$ are observed. The stable channel is consistent with previous photodetachment spectrum from \textit{tert}-butoxide anion} as well as a Franck-Condon simulation of the photoelectron spectrum. The dissociative channel is consistent with a methyl loss from an alkylhydroxy radical. Results will be analyzed in the context of calculations employing MP2/6-311++G(d,p) and CBSQ level of theory.