title: Doubly meso-beta-Linked Diporphyrins from Oxidation of 5,10,15-Triaryl-Substituted Ni(II)- and Pd(II) - Porphyrins.
abstract: Lower oxidation potentials than for the monomeric starting materials are displayed by the diporphyrins obtained by one-electron oxidation with tris(4-bromophenyl)ammonium hexachloroantimonate [see, for example, Eq. (1)]. This and the strong red shift observed for the Soret bands of the product are indicative of extensively delocalized pi-electron systems in the fused diporphyrin. Ar=3,5-di-tert-butylphenyl.
authors.affiliation: Department of Chemistry, Graduate School of Science Kyoto University, Sakyo-ku, Kyoto 606 - 8502 (Japan).
authors.initials: A
authors.lastname: Tsuda
authors.initials: A
authors.lastname: Nakano
authors.initials: H
authors.lastname: Furuta
authors.initials: H
authors.lastname: Yamochi
authors.initials: A
authors.lastname: Osuka