A re-analysis of the vacuum ultraviolet absorption spectrum of I2, Br2, and ICl using ionization energies determined from their ZEKE-PFI photoelectron spectra

文献情報

出版日 2002-03-21

DOI 10.1039/B109555M

インパクトファクター 3.676

著者

Trevor Ridley, David A. Beattie, Martin C. R. Cockett, Kenneth P. Lawley, Robert J. Donovan

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要旨

The vacuum ultraviolet absorption spectra of I2, Br2 and ICl have been re-analysed using new data from the zero kinetic energy-pulsed field ionization (ZEKE-PFI) photoelectron spectra of all three molecules, and the (2 + 1) resonance enhanced multiphoton ionization (REMPI) spectrum of ICl. A common pattern of absorption intensities emerges in which all transitions to states which have appreciable singlet character are strong. Thus, in all three molecules, strong transitions are observed to four np and six nf Rydberg series based on the X[2Π3/2]g and X[2Π1/2]g states of the molecular ions, to two ns and six nd states in ICl and to two ns states based on the A[2Π3/2]u and A[2Π1/2]u states of the ion in Br2. The Ω values of some of the Rydberg series have been determined directly from the (2 + 1) REMPI spectrum of ICl.

掲載誌

Physical Chemistry Chemical Physics

CiteScore: 5.5

自己引用率: 10.3%

年間論文数: 3036

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