Radiolysis and photolysis of crystalline 2,4,6-triazido-3,5-dichloropyridine: Generation of Quintet dinitrenes

被引：0
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作者：
S. I. Kuzina
A. I. Mikhailov
S. V. Chapyshev
机构：
[1] Russian Academy of Sciences,Institute of Problems of Chemical Physics
来源：
High Energy Chemistry | 2007年 / 41卷
关键词：
Photolysis; Dissociative Electron Capture; High Energy Chemistry; Buildup Curve; Aromatic Azide;
D O I：
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学科分类号：
摘要：
Low-temperature radiolysis and photolysis of crystalline 2,4,6-triazido-3,5-dichloropyridine (TAP) were studied by means of the ESR technique. It was found that the long-term irradiation of TAP at 77 K leads to the appearance of characteristic signals of quintet 2,6-dinitreno-4-azido-3,5-dichloropyridine and 2,4-dinitreno-6-azido-3,5-dichloropyridine; their radiation-chemical yield was 0.035 and 0.012 molecule/100 eV, respectively. The photolysis of crystalline 2,4,6-triazido-3,5-dichloropyridine proceeded less effectively, producing only quintet 2,6 dinitrene with a quantum yield of ∼4.5 × 10−4. The study showed that the generation of high-spin nitrenes via radiolysis of crystalline azides is much superior to the photochemical technique in efficiency and may be of practical importance for the preparation of magnetically active organic materials.
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页码：245 / 250
页数：5
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