1395048-98-2Relevant academic research and scientific papers
Fused π-extended discotic triangular porphyrinoids
Arnold, Lena,Puniredd, Sreenivasa Reddy,Von Malotki, Christian,Pisula, Wojciech,Koshino, Nobuyoshi,Higashimura, Hideyuki,Baumgarten, Martin,Wagner, Manfred,Müllen, Klaus
experimental part, p. 564 - 575 (2012/09/21)
A novel fused two-dimensionally π-expanded triangular porphyrinoid has been designed. The synthesis is based on facile hexaazatrinaphthalene chemistry in combination with well-established condensation procedures to simultaneously close three porphyrinic cavities. A series of different functionalized π-expanded triangular derivatives were synthesized and their optical and electrochemical properties, as well as their supramolecular organization investigated. Low lying HOMOLUMO energy gaps between 1.111.32 eV were found for the highly π-conjugated planar triangular hexaazatrinaphthalene derivatives which organize into discotic liquid crystalline columnar stacks. Thereby, derivatives with alkoxy substituents reveal significantly higher order due to their improved flexibility in comparison to their alkyl counterparts.
