Infrared spectroscopic studies of photoinduced reactions of methyl radical in solid parahydrogen

✍ Scribed by Takamasa Momose; Mikio Uchida; Norihito Sogoshi; Masaaki Miki; Shinya Masuda; Tadamasa Shida

• Book ID: 103031383
• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 307 KB
• Volume: 246
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(95)01160-2

✦ Synopsis

Photolysis of methyl iodide in solid parahydmgen crystal at about 5 K by a low-pressure mercury lamp produces methyl radical, methane and ethane as evidenced by their infrared absorption spectra. It is found that even after the complete depletion of methyl iodide the intensity of the ~' 3 and v 4 bands of methane continues to increase with the concomitant d~:crea~ of the intensity of the v 3 and v 4 bands of methyl radical as long as the mercury lamp illumination is continued. Possible mechanisms of the spectral changes are proposed.