Synthesis and Complexation Properties of an Oligooxaethylene-Spacered Porphyrin Dimer – Toward the Construction of a New Switchable Porphyrin Array
✍ Scribed by Donato Monti; Mariano Venanzi; Giovanna Mancini; Federica Marotti; Laura La Monica; Tristano Boschi
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 294 KB
- Volume
- 1999
- Category
- Article
- ISSN
- 1434-193X
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✦ Synopsis
A new linear switchable diporphyrin array has been the host-guest complexes promotes a change of the geometry of the system toward a topology in which the two synthesized in good yield by a Williamson coupling of 5-(4Јhydroxyphenyl)-10,15,20-triphenylporphyrin with tetraethyl-tetrapyrrolic macrocycles tend to face together. UV/Vis and fluorescence spectroscopy give indications of the actual ene glycol ditosylate. 1 H-NMR binding studies reveal that the title receptor binds to Na + and K + salts to give a geometry of the assembly. The system reported represents an important step toward the construction of a supramolecular supramolecular complex with stability constants (K) of 30 and 160 M -1 , respectively (CD 3 CN/CDCl 3 , 1:1). The formation of model of relevant biological systems.
less demanding protocols but rests on assemblies which too Ple. A. Moro 5, I-00185 Rome, Italy phenylporphyrin (H 2 TPP) and 5-(p-methoxyphenyl)-Supporting information for this article is available on the WWW under http://www.wiley-vch.de/home/eurjoc or from the author. 10,15,20-triphenylporphyrin (2). After chromatographic