Abstract

Singlet molecular oxygen (¹O₂) monomol light emission (O₂, ¹Δ_<i>g</i> → ³Σ^-_<i>g</i>) 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.

Direct measurement of O₂(a¹Δ) and O₂(X³Σ) in chemical oxygen–iodine lasers with use of spontaneous Raman imaging

V. Tom Gylys and Larry F. Rubin
Appl. Opt. 37(6) 1026-1031 (1998)

Measurement of the Raman cross section of O₂(a¹Δ_g)

L. F. Rubin and V. T. Gylys
Opt. Lett. 22(17) 1347-1349 (1997)

Na₂ c Σ3g+→a Σ3u+ bound–free emission by electron-beam excitation

Da Xing, Ken-ichi Ueda, Qi Zhang, and Hiroshi Takuma
J. Opt. Soc. Am. B 8(5) 917-922 (1991)

Quantitative monitoring of the level of singlet oxygen using luminescence spectra of phosphorescent photosensitizer

Peng Wang, Feng Qin, Zhiguo Zhang, and Wenwu Cao
Opt. Express 23(18) 22991-23003 (2015)

Measurements of the yield and chlorine utilization of singlet oxygen generator by use of Raman spectroscopy

Weili Zhao, Liping Duo, Fengting Sang, and Fang Chen
Appl. Opt. 42(18) 3524-3527 (2003)