Photolysis of maleic anhydride and maleimides in solution studied by electron spin resonance

H. Zott; H. Heusinger

doi:10.1016/0146-5724(77)90034-6

Photolysis of maleic anhydride and maleimides in solution studied by electron spin resonance

H. Zott, H. Heusinger

Radiochemistry Munich

Technical University of Munich

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Photolysis of maleic anhydride and maleimides in polar solvents (aliphatic alcohols and dimethylformamide) were investigated by ESR spectroscopy. In maleic anhydride-methanol solution, H· and ·CH₂OH radical adducts have been observed, {A figure is presented} whereas solution in dimethylformamide leads to radical anions of maleic anhydride with both ring and ring opened structure. {A figure is presented} In maleimide-alcohol solutions radical anions of maleimide, RĊHOH radicals and R-ĊHOH adducts to maleimides have been detected. {A figure is presented} In dimethyl formamide solution only radical anions of maleimides have been observed. Based on the experimental results, mechanisms for the formation of the radicals and the radical ions are proposed.

Original language	English
Pages (from-to)	297-302
Number of pages	6
Journal	Radiation Physics and Chemistry
Volume	10
Issue number	5-6
DOIs	https://doi.org/10.1016/0146-5724(77)90034-6
State	Published - 1977

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title = "Photolysis of maleic anhydride and maleimides in solution studied by electron spin resonance",

abstract = "Photolysis of maleic anhydride and maleimides in polar solvents (aliphatic alcohols and dimethylformamide) were investigated by ESR spectroscopy. In maleic anhydride-methanol solution, H· and ·CH2OH radical adducts have been observed, {A figure is presented} whereas solution in dimethylformamide leads to radical anions of maleic anhydride with both ring and ring opened structure. {A figure is presented} In maleimide-alcohol solutions radical anions of maleimide, RĊHOH radicals and R-ĊHOH adducts to maleimides have been detected. {A figure is presented} In dimethyl formamide solution only radical anions of maleimides have been observed. Based on the experimental results, mechanisms for the formation of the radicals and the radical ions are proposed.",

author = "H. Zott and H. Heusinger",

year = "1977",

doi = "10.1016/0146-5724(77)90034-6",

language = "English",

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pages = "297--302",

journal = "Radiation Physics and Chemistry",

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T1 - Photolysis of maleic anhydride and maleimides in solution studied by electron spin resonance

AU - Zott, H.

AU - Heusinger, H.

PY - 1977

Y1 - 1977

N2 - Photolysis of maleic anhydride and maleimides in polar solvents (aliphatic alcohols and dimethylformamide) were investigated by ESR spectroscopy. In maleic anhydride-methanol solution, H· and ·CH2OH radical adducts have been observed, {A figure is presented} whereas solution in dimethylformamide leads to radical anions of maleic anhydride with both ring and ring opened structure. {A figure is presented} In maleimide-alcohol solutions radical anions of maleimide, RĊHOH radicals and R-ĊHOH adducts to maleimides have been detected. {A figure is presented} In dimethyl formamide solution only radical anions of maleimides have been observed. Based on the experimental results, mechanisms for the formation of the radicals and the radical ions are proposed.

AB - Photolysis of maleic anhydride and maleimides in polar solvents (aliphatic alcohols and dimethylformamide) were investigated by ESR spectroscopy. In maleic anhydride-methanol solution, H· and ·CH2OH radical adducts have been observed, {A figure is presented} whereas solution in dimethylformamide leads to radical anions of maleic anhydride with both ring and ring opened structure. {A figure is presented} In maleimide-alcohol solutions radical anions of maleimide, RĊHOH radicals and R-ĊHOH adducts to maleimides have been detected. {A figure is presented} In dimethyl formamide solution only radical anions of maleimides have been observed. Based on the experimental results, mechanisms for the formation of the radicals and the radical ions are proposed.

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U2 - 10.1016/0146-5724(77)90034-6

DO - 10.1016/0146-5724(77)90034-6

M3 - Article

AN - SCOPUS:49349131636

SN - 0146-5724

VL - 10

SP - 297

EP - 302

JO - Radiation Physics and Chemistry

JF - Radiation Physics and Chemistry

IS - 5-6

ER -

Photolysis of maleic anhydride and maleimides in solution studied by electron spin resonance

Abstract

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