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Design and chemical synthesis of iodine-containing molecules for application to solar-pumped I* lasersThe design and chemical synthesis of new media for solar pumped iodine molecule lasers are explored. In an effort to prepare an iodo fluorocarbon compound absorbing strongly at 300 nm or above, the synthesis of perfluoro allylic iodides was investigated. These compounds furnish especially stable allylic radicals upon photodissociation. The desired red shift is anticipated in the absorption maximum could correlate with increasing radical stability. This expectation was based upon the analysis, previously reported, of the structures and absorption maxima of compounds studied earlier. A previously unknown substance was prepared, a prototypical target molecule, perfluoro-3-iodocyclopent-1-ene. It was obtained by reaction of perfluorocyclopentene with sulfur trioxide under the influence of antimony pentafluoride catalyst, followed by treatment of the resulting allylic fluorosulfonate with sodium iodide in sulfoland solvent. Preliminary data indicate that the absorption maximum for the iodo fluorocarbon is not shifted significantly to longer wavelength. It is not certain whether this result reflects an unexpected influence of the cyclic structure upon the position of the absorption maximum.
Document ID
19860021565
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Shiner, C. S.
(Colorado Univ. Boulder, CO, United States)
Date Acquired
September 5, 2013
Publication Date
January 1, 1986
Subject Category
Lasers And Masers
Report/Patent Number
NASA-CR-176854
NAS 1.26:176854
Accession Number
86N31037
Funding Number(s)
CONTRACT_GRANT: NAG1-437
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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