𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Photoresponsive Supramolecular Systems: Self-Assembly of Azodibenzoic Acid Linear Tapes and Cyclic Tetramers

✍ Scribed by Felaniaina Rakotondradany; M. A. Whitehead; Anne-Marie Lebuis; Hanadi F. Sleiman

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
388 KB
Volume
9
Category
Article
ISSN
0947-6539

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

A new strategy to effect photoinduced control over molecular self‐assembly is reported. This strategy uses the reversible trans–cis photoisomerization of a novel azobenzene system, where the trans‐ and cis‐forms self‐assemble into dramatically different higher‐order structures. The trans‐azobenzene form of this molecule associates into infinite hydrogen‐bonded linear tapes, while the cis‐azobenzene form undergoes hydrogen‐bonded self‐assembly into cyclic tetramers. This results in a second level of association, where the __cis‐__hydrogen‐bonded supramolecular cycles ultimately form long, rod‐like aggregates through stacking interactions.

📜 SIMILAR VOLUMES

Characterization of a Planar Cyclic Form
Characterization of a Planar Cyclic Form of Water Hexamer in an Organic Supramolecular Complex: An Unusual Self-Assembly of Bimesityl-3,3′-Dicarboxylic Acid
✍ J. Narasimha Moorthy; R. Natarajan; P. Venugopalan 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 130 KB 👁 2 views

There is an upsurge of interest in contemporary theoretical and experimental research to unravel the structural details of water clusters. [1±8] The clusters are believed to be the perfect means for characterizing the structural changes and bonding mechanisms in passing from isolated molecules to a