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Centralizer near-rings determined by PID-modules, II

✍ Scribed by P. Fuchs; C. J. Maxson; A. P. J. Van Der Walt; K. Kaarli


Publisher
Springer Netherlands
Year
1993
Tongue
English
Weight
181 KB
Volume
26
Category
Article
ISSN
0031-5303

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Solution structure of porphyrin aggregat
✍ R. B. M. Koehorst; U. Hofstra; T. J. Schaafsma πŸ“‚ Article πŸ“… 1988 πŸ› John Wiley and Sons 🌐 English βš– 558 KB

The aggregation of the water-soluble porphyrins tetra(4-carboxypheny1)porphyrin free base (H,TPPC), tetra(4-N-methylpyridy1)porphyrin free base (H,TMPyP) and their zinc derivatives (ZnTPPC and ZnTMPyP) was studied by 'H NMR and optical absorption spectroscopy. In the solvent H,O-CH,OH (4:1), mixing