CYCLOPENTADIENYL, INDENYL, AND FLUORENYL ANIONS - GAS-PHASE AND SOLVATION ENERGY CONTRIBUTIONS TO ELECTRON DETACHMENT ENERGIES

Authors
ROMER B JANAWAY GA BRAUMAN JI
Citation
B. Romer et al., CYCLOPENTADIENYL, INDENYL, AND FLUORENYL ANIONS - GAS-PHASE AND SOLVATION ENERGY CONTRIBUTIONS TO ELECTRON DETACHMENT ENERGIES, Journal of the American Chemical Society, 119(9), 1997, pp. 2249-2254
Citations number
43
Categorie Soggetti
Chemistry
Journal title
Journal of the American Chemical Society → ACNP
ISSN journal
00027863
Volume
119
Issue
9
Year of publication
1997
Pages
2249 - 2254
Database
ISI
SICI code
0002-7863(1997)119:9<2249:CIAFA->2.0.ZU;2-S
Abstract
We have measured the gas-phase electron affinities of indenyl and fluo renyl radicals to be 42.7 +/- 0.3 and 43.1 +/- 0.3 kcal/mol, respectiv ely, by electron photodetachment spectroscopy, using an ion cyclotron resonance spectrometer to generate, trap, and detect ions. From the el ectron affinities and literature values for the gas-phase acidities, w e derive the bond dissociation energies: indene, 81.1 +/- 2.4 kcal/mol and fluorene, 81.3 +/- 2.4 kcal/mol. We describe a general approach f or comparing gas and solution-phase ionic properties.