𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Photolysis of dimethylnitrosamine in the gas phase

✍ Scribed by Georg Geiger; J. Robert Huber

Publisher
John Wiley and Sons
Year
1981
Tongue
German
Weight
394 KB
Volume
64
Category
Article
ISSN
0018-019X

No coin nor oath required. For personal study only.

✦ Synopsis

Photodecomposition of dimethylnitrosamine in the gas phase (-1 Torr) has been investigated following irradiation into the S, ( n n * ) t S , (363.5 nm) and S, ( m * ) t S , (248.1 nm) transitions at room temperature. With a quantum yield of unity, excitation into the S, state yields the fragments (CH,),N' and NO which then recombine leaving no photoproducts. The addition of 0, results in only one photoproduct, (CH,),NNO,.

Irradiating into the S, state, the products CH,=N-CH,, (CH,=N-CH,),, CH,=NOH, N20, NO, H,, and N, were identified by capillary gas chromatography mass spectrometry. In the presence of N, as a buffer gas the photoproducts are only CH,=N-CH,, (CH,=N-CH,),, N,O, and H,. For both excitation conditions a mechanism is proposed involving cleavage of the N, N-bond as the main primary photolytic process.

📜 SIMILAR VOLUMES

Photolysis of o-Nitrobenzaldehyde in the
Photolysis of o-Nitrobenzaldehyde in the Gas Phase: A New OH. Formation Channel
✍ Shi-Bo Cheng; Can-Hua Zhou; Hong-Ming Yin; Ju-Long Sun; Ke-Li Han 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 405 KB

## Abstract **New route to gas‐phase OH^.^**: UV photolysis of gaseous __o__‐nitrobenzaldehyde forms OH radicals via the transformation into the ketene or __o‐__nitrosobenzoic acid intermediate (see figure). The OH^.^ product is monitored by single‐photon laser‐induced fluorescence (LIF).magnified

Rotating sector study of the gas phase p
Rotating sector study of the gas phase photolysis of the carbon tetrachloride–cyclohexane system
✍ Merle L. White; Robert R. Kuntz 📂 Article 📅 1971 🏛 John Wiley and Sons 🌐 English ⚖ 449 KB

## Abstract The rate constant for the combination of trichloromethyl radicals in the gas phase has been measured by applying the rotating sector technique to the gas phase carbon tetrachloride–cyclohexane photochemical system. A temperature‐independent rate constant, __k__~5~, of 3.9 ± 1.0 × 10^12^

Flash photolysis of biacetyl in gas phas
Flash photolysis of biacetyl in gas phase. Rate constants of reactions between methyl and acetyl radicals
✍ Raimo Timonen; Kaarlo Kalliorinne; Kurt Blomqvist; Jouko Koskikallio 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 English ⚖ 354 KB

The flash photolysis of biacetyl produces CO, CZH6, and CH3COCH3 as main products, and in small amounts COz, CzH4, and CH3CHO. The rate constants of reactions ( 2) and of' thermally equilibrated radicals were calculated from the amounts of products: ) lo'\* dm3/mol. s k 3 = (2.43 f 0.14) 1O1O dm3/

Rotating sector study of the gas phase p
Rotating sector study of the gas phase photolysis of the 1,1,1-trichloro-2,2,2-trifluoroethane–cyclohexane system
✍ Fred B. Wampler; Robert R. Kuntz 📂 Article 📅 1971 🏛 John Wiley and Sons 🌐 English ⚖ 348 KB

## Abstract The rate constant for the combination of 1,1‐dichloro‐2,2,2‐trifluoroethyl radicals in the gas phase has been measured by applying the rotating sector technique to the 1,1,1‐trichloro‐2,2,2‐trifluoroethane–cyclohexane photochemical system. The combination rate constant, __k__~5~, was fo

Adamantene in the Gas Phase
Adamantene in the Gas Phase
✍ Prof. Dr. Helmut Schwarz; Prof. Dr. Manfred T. Reetz; Dr. Wilhelm F. Maier; Dipl 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 English ⚖ 218 KB 👁 2 views

A(AGI: 4 f l kcal.mol.' Scheme 1. Stability sequence ofcations (1) to (6); D(R@ X"') values taken from l3bl.