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Anisotropic Effects of Conjugated Cyclic Systems, VII. NMR Spectra of Metal Complexes of meso ‐Tetramesitylporphyrin
Author(s) -
Eberhardt Udo,
Schwarz Wolfgang,
Musso Hans
Publication year - 1987
Publication title -
liebigs annalen der chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 0170-2041
DOI - 10.1002/jlac.198719870833
Subject(s) - annulene , chemistry , delocalized electron , porphyrin , conjugated system , spectral line , metal , ring (chemistry) , nmr spectra database , crystallography , ligand (biochemistry) , electron delocalization , proton nmr , anisotropy , stereochemistry , photochemistry , organic chemistry , biochemistry , physics , receptor , astronomy , polymer , quantum mechanics
The differences of chemical shift values of o ‐ and p ‐methyl signals in the 1 H‐NMR spectra of Zn, Ni, Pd, and Pt complexes of tetramesitylporphyrin (Δδ = 0.785–0.755 ppm) are not significantly different from that of the free ligand (Δδ = 0.771 ppm) indicating the same order of delocalization of π electrons in the outer annulene sphere of the porphyrin ring.