Solution structure of porphyrin aggregates determined by 1H NMR ring current shifts. I. Heterodimers of oppositely charged porphyrins
- 1 December 1987
- journal article
- research article
- Published by Wiley in Magnetic Resonance in Chemistry
- Vol. 25 (12) , 1069-1073
- https://doi.org/10.1002/mrc.1260251210
Abstract
The solution structures of dimers consisting of negatively charged Zn[tetra(4‐carboxyphenyl)porphyrin], ZnTPPC, with positively charged Zn[tetra(4‐N‐methylpyridyl)porphyrin], ZnTMPyP, and with H2[tetra(4‐N‐methylpyridyl)porphyrin], H2TMPyP, were determined by 1H NMR ring current shifts. The conformation is not affected by the presence of the metal in the centre of the TMPyP monomer. The dimers have a cofacial conformation with a plane‐to‐plane separation of 3.1 Å and an in‐plane translation of 4.2 Å along the aryl—aryl axis.Keywords
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