Organometallic photochemistry with circularly polarized light. Synthesis of optically active tropone-iron tricarbonyl complex by asymmetric destruction

Sara Litman, Aharon Gedanken, Zeev Goldschmidt, Yitzhak Bakal

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Irradiation of tropone-Fe(CO)3 complex (1) with left or right circularly polarized light at λ 380-500 nm induces stable optical activity in the complex by an asymmetric destruction process.

Original languageEnglish
Pages (from-to)983-984
Number of pages2
JournalChemical Communications
Issue number22
DOIs
StatePublished - 1978

Bibliographical note

Funding Information:
Thus clearly, one enantionier of the tropone coniplex is preferentially destroyed during irradiation, The extent of the photolytic destruction after 6 h of irradiation was 374, calculated from the difference in the absorption at 435 nm before and after photolysis. Assum-ing an optical yield of 0.5%, as compared with the helicenes12 and other related systems studied so far,13a specific rotation J.C.S. CHEM. COMM.,1978 of 700" for the pure enantiomer has been calculated. This findings6,*,lowhich exclude rscemization via interconversion value corresponds reasonably to systems with inherent of the two enantiomers. asymmetry.5 A.G. gratefully acknowledges partial support of the Israeli The observation of stable optical activity in (1)provides a National Council for Research and Development.

Funding

Thus clearly, one enantionier of the tropone coniplex is preferentially destroyed during irradiation, The extent of the photolytic destruction after 6 h of irradiation was 374, calculated from the difference in the absorption at 435 nm before and after photolysis. Assum-ing an optical yield of 0.5%, as compared with the helicenes12 and other related systems studied so far,13a specific rotation J.C.S. CHEM. COMM.,1978 of 700" for the pure enantiomer has been calculated. This findings6,*,lowhich exclude rscemization via interconversion value corresponds reasonably to systems with inherent of the two enantiomers. asymmetry.5 A.G. gratefully acknowledges partial support of the Israeli The observation of stable optical activity in (1)provides a National Council for Research and Development.

FundersFunder number
National Council for Forest Research and Development

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