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Publication Citation: Laser Photodetachment Determination of the Electron Affinities of OH, NH2, NH, SO2, and S2

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Author(s): Robert Celotta; R Bennett; John L. Hall;
Title: Laser Photodetachment Determination of the Electron Affinities of OH, NH2, NH, SO2, and S2
Published: March 01, 1974
Abstract: Using a fixed frequency argon ion laser, we have studied the energy spectra of electron photodetached from OH-, NH2-, NH-, SO2-, and S2-. We determined the following electron affinities: EA(OH) = 1.829+0.010-0.014 eV, EA(NH2) = 0.779{plus or minus}0.037 eV, A^(NH) = 0.38{plus or minus}0.03 eV, EA(SO2) = 1.097{plus or minus}0.036 eV, and EA(S2) = 1.663{plus or minus}0.040 eV. Additionally, the angular distribution anisotrophy parameter β was measured for OH- and NH2-^ at 4880 {Aring}, as -0.993 {plus or minus} 0.040 and 0.027 {plus or minus} 0.012 respectively, a nd information about negative ion vibrational constants is presented.
Citation: Journal of Chemical Physics
Volume: 60
Issue: 5
Research Areas: Atomic Physics