PICOSECOND ABSORPTION STUDIES OF EXCESS ELECTRONS IN AMMONIA, AMINES, AND ETHERS Academic Article

abstract

• Absorption spectroscopy data on the optical properties of the solvated electron (esolv-) in liquid ammonia, amines, and ethers indicate that the characteristic infrared (1500 nm) absorption of esolv- in NH3 and ND3 is homogeneous at least within the time limits of the experiment (10 ps). The esolv- ground state repopulation time observed by monitoring the bleaching of the infrared band is found to be in the subpicosecond range in all solvents studied. Quasi-free electrons are generated in methylamine by photoionization of Na- and their solvation time is studied by following the growth of the esolv- absorption in the range 770-1120 nm. It is found that the solvation is complete in 10 ps. The transient absorption spectra of species characterized as cation-electron pairs (Na+, esolv-) are obtained through picosecond photoionization of Na- in dimethoxyethane. Their formation time is also found to be 10 ps. 1978 American Chemical Society.

authors

• Rentzepis, Peter

published proceedings

• JOURNAL OF PHYSICAL CHEMISTRY

author list (cited authors)

• HUPPERT, D., AVOURIS, P., & RENTZEPIS, P. M.

citation count

• 8

complete list of authors

• HUPPERT, D||AVOURIS, P||RENTZEPIS, PM

publication date

• October 1978

publisher

• American Chemical Society (ACS)  Publisher

published in

• The Journal of physical chemistry  Journal

Digital Object Identifier (DOI)

• 10.1021/j100510a005

start page

• 2282

end page

• 2286

volume

• 82

issue

• 21

URL

• http://dx.doi.org/10.1021/j100510a005