Showing papers by "Mary K. Gilles published in 1992"
TL;DR: The 351 nm photoelectron spectra of the phenide, benzyl and phenoxide anions are reported in this paper. But the results are limited to the presence of two vibrational modes at 600(10) and 968(15) cm −1, and an excited electronic state at ⩽ 1.7 eV.
209 citations
TL;DR: In this article, a photoelectron spectra of FO, ClO, BrO, IO, IO−, OClO−, and OIO− is reported.
Abstract: The 351 nm photoelectron spectra of FO−, ClO−, BrO−, IO−, OClO−, and OIO− are reported. The spectra of the halogen monoxides display transitions to both spin–orbit states of the 2Πi ground state neutrals. Anion vibrational frequencies are observed in the spectra and bond lengths are obtained for the anions from Franck–Condon simulations. Spectra of the halogen dioxides display two active vibrational modes—the symmetric stretch and the bend. Anion symmetric stretching frequencies and normal coordinate displacements from the corresponding neutral are reported. Adiabatic electron affinities found for the halogen oxides are 2.272(6) eV (FO), 2.276(6) eV (ClO), 2.353(6) eV (BrO), 2.378(6) eV (IO), 2.140(8) eV (OClO), and 2.577(8) eV (OIO). The difference between the neutral and anion dissociation energies [D0(XO)−D0(XO−)] is reported for each of the halogen monoxides. Anion heats of formation (298 K) are also determined.
138 citations
TL;DR: In this article, photo-electron spectra and angular distributions for the HCX( 1 A')+e - ←HCX - (X 2 A'') and HCX ( 3 A''+e − ← HCX -(X 2 Ao'') transitions of the halocarbenes (X=F, Cl, Br, and I) are reported.
Abstract: Photoelectron spectra and angular distributions are reported for the HCX( 1 A')+e - ←HCX - (X 2 A'') and HCX( 3 A'')+e - ←HCX - (X 2 A'') transitions of the halocarbenes (X=F, Cl, Br, and I). Taking photoelectron spectra at parallel and perpendicular laser polarizations with respect to the direction of the photoelectron detection allows us to distinguish the triplet transition from the overlapping singlet transition
116 citations
TL;DR: In this paper, the 351 nm photoelectron spectrum of SF− has been recorded with 9 meV resolution and the transition from the 1Σ+ SF− ground electronic state to the two spin-orbit components of the 2Π SF ground state is observed.
Abstract: The 351 nm photoelectron spectrum of SF− has been recorded with 9 meV resolution. Transitions from the 1Σ+ SF− ground electronic state to the two spin–orbit components of the 2Π SF ground state are observed. The adiabatic electron affinity of SF is determined to be 2.285(6) eV. From Franck–Condon simulation of the spectrum we obtain re(SF−)=1.717(15) A, and observation of vibrational hot bands enables measurement of ωe(SF−)=635(15) cm−1. The spin–orbit constant of the 2Π ground state of SF is determined to be A=−417(10) cm−1.
37 citations