By H. Fischer (auth.), H. Fischer (eds.)

ISBN-10: 3540473777

ISBN-13: 9783540473770

ISBN-10: 3540560572

ISBN-13: 9783540560579

Free radicals, that are key intermediates in lots of thermal, photochemical and radiation techniques, are very important for a formal realizing of basic normal approaches and the winning improvement of natural syntheses. Volume II/18 serves as a complement and extension to volume II/13 and covers fee constants and different kinetic info of unfastened radical reactions in beverages. Furthermore II/18 includes new chapters on reactions of radicals in excited states and of carbenes, nitrenes and analogues. chosen species in aqueous options for which different compilations can be found have been intentionally passed over as ahead of, and for a similar cause electron move equilibria of natural radicals weren't covered.

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Extra info for Alkoxyl, Carbonyloxyl, Phenoxyl, and Related Radicals

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35 · 106 M–1 s –1 93Avi1 [C9H11O] C6H5 C (CH3)2 O + abstraction and addition products Laser phot. 64 · 106 M–1 s –1 83Bai1 [C9H11O] 40 ) 40) C6H5 C (CH3)2 O + C6H5 C (CH3)2 OH + Laser phot. 30 · 106 M–1 s –1 [C9H11O] • –– C6H5C(CH3)2O • + CH2 –– CH(CH2)5CH3 –––– ➝ C6H5C(CH3)2OH + CH2 –– CHCH(CH2)4CH3 Laser phot. 59 · 106 M–1 s –1 [C9H11O] 5 ) Time-resolved infrared detection. ) Most probable reaction path. Landolt-Börnstein New Series II/18D1 40 ) 83Bai1 • –– C6H5C(CH3)2O • + C6H5CH(CH3)2 –––– ➝ C6H5C(CH3)2OH + C6H5C(CH3)2 Laser phot.

38 M–1 333 63 ) ) 63 ) 63 ) 63 ) • a –– (CH3)3CO • –––– ➝ CH3COCH3 + CH3 • b –– ➝ (CH3)3COH + CH3(CH2)4CH2 S (CH3)3CO • + CH3(CH2)4CH2SH –––– Therm. 5 · 107 M–1 s –1 [C4H9O] 88Bus1 63 45 ) 89Enc1 • a –– (CH3)3CO • –––– ➝ CH3COCH3 + CH3 b –– (CH3)3CO • + [(CH3)2CH]2S –––– ➝ (CH3)3COH + abstraction products Therm. 38 · 106 M–1 s –1 [C4H9O] 45 ) 89Enc1 • a –– ➝ CH3COCH3 + CH3 (CH3)3CO • –––– • b –– (CH3)3CO • + C6H5CHO –––– ➝ (CH3)3COH + C6H5CO Therm. 05 · 10 M s taken from [82Won1]. 63 5 –1 ) Authors convert these relative rates into absolute values using k 333 a = 1 · 10 s .

6 · 108 M–1 s –1 at 353 K (taken from absolute measurements for (CH3)3CO, see [89Bec1], [89Bec3]). Landolt-Börnstein New Series II/18D1 Ref. p. / add. ref. Rate data [C10H19O] O OH + (n-C4H9)3 SnH Sn H O a + (n-C4H9)3 Sn O b BrCH2CH2CH(C(CH3)3)CH2CH2C(O)H, initiated by therm. 1 Ethoxyl and iso-propoxyl radicals [C2H5O] • – a–––➝ – C2H5O • + CH2 –– C(CH3)CO2CH3 ––– b –––➝ – C2H5OCH2C(CH3)CO2CH3 C2H5OH + CH2 – CCO2CH3 | CH2 Therm. of (C2H5ON)2 PR, NRT substrate 333 [C3H7O] – (CH3)2CHO • + CH2 –– C(CO2CH3)CH3 ––– b –––➝ – 119 93Bus1 • – a–––➝ Therm.

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Alkoxyl, Carbonyloxyl, Phenoxyl, and Related Radicals by H. Fischer (auth.), H. Fischer (eds.)


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