Title
Sterically Strained Porphyrins—Influence of Core Protonation and Peripheral Substitution on the Conformation of Tetra‐meso‐, Octa‐β‐, and Dodeca‐Substituted Porphyrin Dications
Document Type
Article
Publication Date
1-3-1995
Abstract
The saddle‐shaped porphyrin with the largest deviation from planarity observed to date is found in the crystal structure of [H4obrtpp][CF3COO]2 · 0.5 CHCl3 (H2obrtpp = octabromotetraphenylporphyrin). The pyrrole rings in the porphyrin are twisted by 62° with respect to each other, and the β‐pyrrole C atoms are displaced by over 1.5 Å from the mean plane of the porphyrin ring. This extreme distortion is caused by the bulky peripheral substituents on the porphyrin ring and the four protons at the core of the structure. Copyright © 1994 by VCH Verlagsgesellschaft mbH, Germany
Publication Source (Journal or Book title)
Angewandte Chemie International Edition in English
First Page
2485
Last Page
2487
Recommended Citation
Senge, M., Forsyth, T., Nguyen, L., & Smith, K. (1995). Sterically Strained Porphyrins—Influence of Core Protonation and Peripheral Substitution on the Conformation of Tetra‐meso‐, Octa‐β‐, and Dodeca‐Substituted Porphyrin Dications. Angewandte Chemie International Edition in English, 33 (23-24), 2485-2487. https://doi.org/10.1002/anie.199424851