✦ LIBER ✦

Quenching of O2(1Δg) by organic molecules

✍ Scribed by K. Furukawa; E.A. Ogryzlo

Publisher: Elsevier Science
Year: 1971
Tongue: English
Weight: 282 KB
Volume: 12
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(71)85088-1

No coin nor oath required. For personal study only.

✦ Synopsis

Rate constants for the quenching of Oz(lAg) by 2,3dimethyl-2-butene and triethylamine have been determined in a discharge-flow system when NO2 is added to eliminate atomic oxygen from the system. The results indicate that in many previous determinations of rate constants for the quenching of 02(lAg) by organic compounds, atoms have probably"led to erroneously high values.

tected. When mercury is continuously distilled through the discharge the oxygen atom concentration can be reduced to the point where no emission can be detected by the eye when NO is added. It is under these conditions that most of our rate constants were previously derermined. A similar test for atoms has been used by some other workers [4, 51.

📜 SIMILAR VOLUMES

The quenching of metastable O2(1Δg) and

The quenching of metastable O2(1Δg) and O2(1Σg+) molecules

✍ K.H. Becker; W. Groth; U. Schurath 📂 Article 📅 1971 🏛 Elsevier Science 🌐 English ⚖ 320 KB

molecules from a discharge have been analyzed by the emission of the infrared atmospheric (0.0) bancfat 12700 A and by the emission of the atmospheric (0,O) band at 7619 A due to the energy pooling reaction ## 202(1Agj -+02('Cs) + 02(%;) . Particular rate constants for the deactivation of 02(1 A

Quenching of O2(1Δg) by aliphatic amines

✍ Nalini Raja; P. K. Arora; J. P. S. Chatha; K. G. Vohra 📂 Article 📅 1985 🏛 John Wiley and Sons 🌐 English ⚖ 233 KB

The quenching rate constants of 02('Ag) with n-butylamine, diethylamine, dipropylamine, dibutylamine, and tripropylamine have been determined in a discharge flow system. The rate constants are found to be (1.6 i . 0.2) x lo3, (8.5 2 0.6) X lo4, (9.8 ? 0.5) x lo4, (2.1 2 0.1) x lo5, and (8.6 2 0.5) x

The collisional quenching of O2*(1Δg) by

The collisional quenching of O2*(1Δg) by NO and CO2

✍ M. Yaron; A. von Engel; P.H. Vidaud 📂 Article 📅 1976 🏛 Elsevier Science 🌐 English ⚖ 259 KB

Rate cocfticicnts for the collisiona! quenching of Of (' a,) by NO and CO, at 2-8 torr and 300 K have been determined. X-NO = (2.48 t 0.23) X lo-" cm3 moleculc~' s-' anzkCOz = (2.56 5 0.12) X IO-" cm3 moleculc~ s-l.

Vibrational relaxation of NO+(υ) by O2(1

Vibrational relaxation of NO+(υ) by O2(1Δg) molecules

✍ I. Dotan; S.E. Barlow; E.E. Ferguson 📂 Article 📅 1985 🏛 Elsevier Science 🌐 English ⚖ 208 KB

The rake constam [or NO+(u) vibrational relaxation by memsrable 02('A ) molecul& is round LO be (3+2)x10-" err? 5-l al room lemperanxc. in comras~ IO the lack of vibrational quenching of NO'(u) by ground-stale 02('X) molecules. [or which the quenching mLe constant <lo-" cm3 s-l. This suggests that N

Chemiluminescence of SO(1Δg,1Σ+g) sensit

Chemiluminescence of SO(1Δg,1Σ+g) sensitized by O2(1Δg)

✍ I. Barnes; K.H. Becker; E.H. Fink 📂 Article 📅 1979 🏛 Elsevier Science 🌐 English ⚖ 232 KB

In a fast flow system mixtures of SOCI 2 with helium were passed through a microwave discharge and added downstream to a flow of metastable 02 (lAg) molecules. Chemiluminescence of the SO(IAg--aZg) (0,0) band was observed at 1.705 #m in addition to the already known (0,0), (0,1), (1,1), and (2,2) ba

Yields of O2(1Σg+) and O2(1Δg) in the H

Yields of O2(1Σg+) and O2(1Δg) in the H + O2 reaction system, and the quenching of O2(1Σg+) by atomic hydrogen

✍ Diane V. Michelangeli; Kuang-Yul Choo; Ming-Taun Leu 📂 Article 📅 1988 🏛 John Wiley and Sons 🌐 English ⚖ 998 KB

The generation of metastable O, ('Xg+) and Oz('Ag) in the H + 0, system of reactions was studied by the flow discharge chemiluminescence detection method. In addition to the Oz('Pg') and Oz(' , H0,(2A~oo) + H02(2AlohO), H02(zA~o,) + HO,(zA~oo), and H Oz(2A~oo) --+ H0,(2A&,o) emissions were detected