Photochemical production of a highly reactive porphyrin-iron-oxo species.
Oxidation of 5,10,15,20-tetramesitylporphyrinatoiron(III) perchlorate, (TMP)FeIII(ClO4), with ferric perchlorate in acetonitrile gave a metastable species identified as (TMP)FeIV(ClO4)2 that decayed within seconds to the known isomeric species (TMP*+)FeIII(ClO4)2. Irradiation of the metastable species with 355 nm laser light gave a highly reactive transient that reacts with simple organic reductants (alkenes and arylalkanes) 5 orders of magnitude faster than known Compound I analogues, (TMP*+)FeIV(O)(X-).
Pan
Zhengzheng
Z
Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, USA.
Zhang
Rui
R
Fung
Leslie W-M
LW
Newcomb
Martin
M
D007501:Iron / Q000737:chemistry* / Q000528:radiation effects; D008665:Metalloporphyrins / Q000138:chemical synthesis* / Q000737:chemistry / Q000528:radiation effects; D015394:Molecular Structure; D010777:Photochemistry; D011166:Porphyrins / Q000737:chemistry* / Q000528:radiation effects; D014466:Ultraviolet Rays
D008665:Metalloporphyrins; D011166:Porphyrins; D007501:Iron