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The Case of (2,3,9,10‐Tetramethyl‐1,4,8,11‐tetraazacyclotetradeca‐1,3,8,10‐tetraene)(H 2 O)Co III −OOR 2+ (R = CH 2 OH, CH 2 CN, CCl 3 ) and Reactions with the Methylperoxyl Radical
Author(s) -
SolomonRapaport Ela,
Masarwa Alexandra,
Cohen Haim,
Valentine Joan S.,
Meyerstein Dan
Publication year - 2002
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/1099-0682(200209)2002:9<2427::aid-ejic2427>3.0.co;2-3
Subject(s) - chemistry , radical , formaldehyde , medicinal chemistry , photochemistry , organic chemistry
The long‐lived transient complexes (2,3,9,10‐tetramethyl1,4,8,11‐tetraazacyclo‐tetradeca‐1,3,8,10‐tetraene)(H 2 O)Co III −OOR 2+ , [(tim)(H 2 O)Co III −O 2 R] 2+ (R = CH 2 OH, CH 2 CN, CCl 3 ) were prepared from the reaction of [Co II (tim)(H 2 O) 2 ] 2+ with the corresponding peroxyl radicals, applying radiation chemistry techniques. The resultant transient complexes, which are relatively stable (lifetime of days), were subsequently treated with methylperoxyl (CH 3 O 2 · ) radicals to form [Co III (tim)(H 2 O) 2 ] 3+ and formaldehyde. The results point out that the CH 3 O 2 · radicals rapidly oxidize MOOR peroxides. (© Wiley‐VCH Verlag GmbH, 69451 Weinheim, Germany, 2002)