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Helical Chiral Polyisocyanides Possessing Porphyrin Pendants: Determination of Helicity by Exciton-Coupled Circular Dichroism

✍ Scribed by Fumie Takei; Hiroko Hayashi; Kiyotaka Onitsuka; Nagao Kobayashi; Shigetoshi Takahashi

Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
76 KB
Volume
40
Category
Article
ISSN
0044-8249

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✦ Synopsis

Exciton-coupled circular dichroism of the porphyrin Soret band of triblock copolymers prepared from chiral isocyanide monomers and an achiral tetraphenylporphyrin derivative (TPP) provides a novel method for determining the helical sense of poly(aryl isocyanide)s (see the schematic representation of the structure).

📜 SIMILAR VOLUMES

Turn and helical peptide spacers: Combin
Turn and helical peptide spacers: Combined distance and angular dependencies in the exciton-coupled circular dichroism of intramolecularly interacting bis-porphyrins
✍ Ivan Guryanov; Alessandro Moretto; Sandro Campestrini; Quirinus B. Broxterman; B 📂 Article 📅 2006 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 323 KB

## Abstract In a previous study we examined by the exciton‐coupled circular dichroic method the distance effect generated by three‐rigid‐turn and helical‐peptide spacers. In this connection porphyrins were confirmed to be excellent reporter chromophores. In the present investigation we have complet