Dioxygen NIR FT-Emission (1Δg3Σ- g) and Raman Spectra of 1, 4-Dimethylnaphthalene Endoperoxide: A Source of Singlet Molecular Oxygen

$29.00 plus tax (Refund Policy)

Buy Article:

Abstract:

Singlet molecular oxygen (1O2) monomol light emission (O2, 1Δ g 3Σ- g ) generated during the thermodissociation of 1,4-dimethylnaphthalene endoperoxide (1,4-DMNO2) has been directly detected with the use of an FT spectrophotometer equipped with a liquid nitrogen-cooled InGaAs detector. The 1O2 quenching by β-carotene has been observed. The bimol emission has also been detected by the use of an intensified diode array detector and characterized by enhancement with 1,4-diazabicyclo[2.2.2]octane (DABCO). With a multichannel detector it was possible to obtain the Raman spectrum of 1,4-DMNO2 and to follow its conversion into the parent hydrocarbon 1,4-dimethylnaphthalene (1,4-DMN) by the decrease of the Raman 715-cm−1 peak intensity attributed to the O-O stretching mode.

Keywords: 1,4-DMNO2; NIR photoemission; Raman spectroscopy; Singlet molecular oxygen; β-Carotene

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702924125528

Affiliations: 1: Institut für Physiologische Chemie I, Universität Düsseldorf, Moorenstr. 5, D-4000 Düsseldorf, Germany 2: Instituto de Química, Universidade de São Paulo, Caixa Postal 20.780, 01498 São Paulo, S.P., Brazil

Publication date: February 1, 1992

More about this publication?
Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more