Photoelectron angular distributions as probes of cluster anion structure: I-·(H2O)2and I-·(CH3CN)2

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

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The use of photoelectron angular distributions to provide structural details of cluster environments is investigated. Photoelectron spectra and angular distributions of I-·(H2O)2 and I-·(CH3CN)2 cluster anions are recorded over a range of photon energies. The anisotropy parameter (innodatabeta) for electrons undergoes a sharp change (Δβmax) at photon energies close to a detachment channel threshold. I-·(H2O)2 results show the relationship between dipole moment and Δβmax to be similar to that observed in monosolvated I- detachment. The Δβmax of the 4.0 eV band in the I-·(CH3CN)2 photoelectron spectrum suggests a dipole moment of 5-6 D. This is consistent with predictions of a hydrogen bonded conformer of the I-· (CH3CN)2 cluster anion [Timerghazin, Q. K.; Nguyen, T. N.; Peslherbe, G. H. J. Chem. Phys. 2002, 116, 6867-6870]. (Chemical Equation Presented).

Original languageEnglish
Pages (from-to)7249-7254
Number of pages6
JournalJournal of Physical Chemistry A
Volume118
Issue number35
DOIs
Publication statusPublished - Sep 4 2014

Fingerprint

Angular distribution
Photoelectrons
Anions
photoelectrons
angular distribution
Dipole moment
anions
detachment
probes
dipole moments
Photons
photons
Hydrogen
Anisotropy
anisotropy
thresholds
energy
Electrons
hydrogen
predictions

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry

Cite this

Mbaiwa, Foster ; Holtgrewe, Nicholas ; Dao, Diep Bich ; Lasinski, Joshua ; Mabbs, Richard. / Photoelectron angular distributions as probes of cluster anion structure : I-·(H2O)2and I-·(CH3CN)2. In: Journal of Physical Chemistry A. 2014 ; Vol. 118, No. 35. pp. 7249-7254.
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Photoelectron angular distributions as probes of cluster anion structure : I-·(H2O)2and I-·(CH3CN)2. / Mbaiwa, Foster; Holtgrewe, Nicholas; Dao, Diep Bich; Lasinski, Joshua; Mabbs, Richard.

In: Journal of Physical Chemistry A, Vol. 118, No. 35, 04.09.2014, p. 7249-7254.

Research output: Contribution to journalArticle

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