Solution structure of porphyrin aggregates determined by  1 H NMR ring current shifts. I. Heterodimers of oppositely charged porphyrins | Zendy

Hofstra U. | Zendy; Koehorst R. B. M. | Zendy; Schaafsma T. J. | Zendy

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Solution structure of porphyrin aggregates determined by 1 H NMR ring current shifts. I. Heterodimers of oppositely charged porphyrins

Author(s) -

Hofstra U.,

Koehorst R. B. M.,

Schaafsma T. J.

Publication year - 1987

Publication title -

magnetic resonance in chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.483

H-Index - 72

eISSN - 1097-458X

pISSN - 0749-1581

DOI - 10.1002/mrc.1260251210

Subject(s) - porphyrin , chemistry , tetra , ring (chemistry) , aryl , monomer , crystallography , proton nmr , metal , stereochemistry , medicinal chemistry , photochemistry , organic chemistry , polymer , alkyl

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 H 2 [tetra(4‐ N ‐methylpyridyl)porphyrin], H 2 TMPyP, were determined by 1 H 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.

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