Weak Interactions and Conformational Changes in Core-Protonated A2- and Ax-Type Porphyrin Dications.

ABSTRACT: Individual chemical motifs are known to introduce structural distortions to the porphyrin macrocycle, be it in the core or at the periphery of the macrocycle. The interplay when introducing two or more of these known structural motifs has been scarcely explored and is not necessarily simply additive; these structural distortions have a chance to compound or negate to introduce new structural types. To this end, a series of compounds with complementary peripheral (5,15-disubstitution) and core (acidification) substitution patterns were investigated. The single-crystal X-ray structures of 18 5,15-diphenylporphyrin, 5,15-diphenylporphyrindi-ium diacid, and related compounds are reported, including the first example of a 5,15-dialkylporphyrindi-ium. Normal-coordinate structural decomposition (

SUBMITTER: Kingsbury CJ 

PROVIDER: S-EPMC7397311 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature