Journal article

Photoisomerization of bicyclopropylidene and 1,2-dimethylenecyclobutane in rare-gas matrices: Towards the IR-spectroscopic identification of tetramethyleneethane (2,3-dimethylenebutane-1,4-diyl)


Authors list: Maier, G; Senger, S

Publication year: 1999

Pages: 1291-1294

Journal: European Journal of Organic Chemistry

Volume number: 1999

Issue number: 6

ISSN: 1434-193X

eISSN: 1099-0690

Publisher: Wiley


Abstract: 
Bicyclopropylidene (3) and 1,2-dimethylenecyclobutane (7) have been irradiated in rare-gas matrices. If 1,2-dimethylenecyclobutane (7) is exposed to the light of a KrF excimer laser (lambda = 248 nm), an isomeric species is produced, showing an absorption at 793.1 cm(-1) (argon matrix) or 791.2 cm(-1) (xenon matrix) in the IR spectrum. The back reaction can be induced with light of lambda = 254 nm. This photochemical interconversion, together with the comparison between the experimental and calculated band positions, supports the assignment of the IR absorption near 790 cm(-1) to tetramethyleneethane (5).



Citation Styles

Harvard Citation style: Maier, G. and Senger, S. (1999) Photoisomerization of bicyclopropylidene and 1,2-dimethylenecyclobutane in rare-gas matrices: Towards the IR-spectroscopic identification of tetramethyleneethane (2,3-dimethylenebutane-1,4-diyl), European Journal of Organic Chemistry, 1999(6), pp. 1291-1294. https://doi.org/10.1002/(SICI)1099-0690(199906)1999:6<1291::AID-EJOC1291>3.0.CO;2-M

APA Citation style: Maier, G., & Senger, S. (1999). Photoisomerization of bicyclopropylidene and 1,2-dimethylenecyclobutane in rare-gas matrices: Towards the IR-spectroscopic identification of tetramethyleneethane (2,3-dimethylenebutane-1,4-diyl). European Journal of Organic Chemistry. 1999(6), 1291-1294. https://doi.org/10.1002/(SICI)1099-0690(199906)1999:6<1291::AID-EJOC1291>3.0.CO;2-M


Keywords

1,2,4,5-TETRAMETHYLENEBENZENE; diradicals; IR spectroscopy; isomerizations; METHYLENECYCLOPROPANE; TRIMETHYLENEMETHANE

Last updated on 2025-02-04 at 07:22