Inter-channel effects in monosolvated atomic iodide cluster anion detachment: Correlation of the anisotropy parameter with solvent dipole moment

Foster Mbaiwa; Diep Dao; Nicholas Holtgrewe; Joshua Lasinski; Richard Mabbs

doi:10.1063/1.3694244

Inter-channel effects in monosolvated atomic iodide cluster anion detachment: Correlation of the anisotropy parameter with solvent dipole moment

Foster Mbaiwa, Diep Dao, Nicholas Holtgrewe, Joshua Lasinski, Richard Mabbs

Chemical & Forensic Sciences

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8 Citations (Scopus)

Abstract

Photoelectron imaging results are presented for I ^-X cluster anions (X CO ₂, C ₄H ₅N pyrrole, (CH ₃) ₂CO, CH ₃NO ₂). The available detachment channels are labeled according to the neutral iodine atom states produced (channel I ²P ₃₂ and channel II ²P _1/2). At photon energies in the vicinity of the channel II threshold these data are compared to previously reported results for I ^-X (X CH ₃CN, CH ₃Cl, CH ₃Br, and H ₂O). In particular, these results show a strong connection between the dipole moment of the solvent molecule and the behavior of the channel I photoelectron angular distributions in this region, which is consistent with an electronic autodetachment process. The evolution of the channel II:channel I branching ratios in this excitation regime supports this contention.

Original language	English
Article number	114303
Journal	Journal of Chemical Physics
Volume	136
Issue number	11
DOIs	https://doi.org/10.1063/1.3694244
Publication status	Published - Mar 21 2012

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All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)
Physical and Theoretical Chemistry

Cite this

Mbaiwa, F., Dao, D., Holtgrewe, N., Lasinski, J., & Mabbs, R. (2012). Inter-channel effects in monosolvated atomic iodide cluster anion detachment: Correlation of the anisotropy parameter with solvent dipole moment. Journal of Chemical Physics, 136(11), [114303]. https://doi.org/10.1063/1.3694244

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abstract = "Photoelectron imaging results are presented for I -X cluster anions (X CO 2, C 4H 5N pyrrole, (CH 3) 2CO, CH 3NO 2). The available detachment channels are labeled according to the neutral iodine atom states produced (channel I 2P 32 and channel II 2P 1/2). At photon energies in the vicinity of the channel II threshold these data are compared to previously reported results for I -X (X CH 3CN, CH 3Cl, CH 3Br, and H 2O). In particular, these results show a strong connection between the dipole moment of the solvent molecule and the behavior of the channel I photoelectron angular distributions in this region, which is consistent with an electronic autodetachment process. The evolution of the channel II:channel I branching ratios in this excitation regime supports this contention.",

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AU - Mbaiwa, Foster

AU - Dao, Diep

AU - Holtgrewe, Nicholas

AU - Lasinski, Joshua

AU - Mabbs, Richard

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AB - Photoelectron imaging results are presented for I -X cluster anions (X CO 2, C 4H 5N pyrrole, (CH 3) 2CO, CH 3NO 2). The available detachment channels are labeled according to the neutral iodine atom states produced (channel I 2P 32 and channel II 2P 1/2). At photon energies in the vicinity of the channel II threshold these data are compared to previously reported results for I -X (X CH 3CN, CH 3Cl, CH 3Br, and H 2O). In particular, these results show a strong connection between the dipole moment of the solvent molecule and the behavior of the channel I photoelectron angular distributions in this region, which is consistent with an electronic autodetachment process. The evolution of the channel II:channel I branching ratios in this excitation regime supports this contention.

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10.1063/1.3694244