Reddy J Sreedhar, Anand Venkataramanarao G
Chemical Sciences and Technology Division, National Institute for Interdisciplinary Science and Technology (Formerly RRL - Trivandrum), Trivandrum 695019, India.
J Am Chem Soc. 2008 Mar 26;130(12):3718-9. doi: 10.1021/ja710664y. Epub 2008 Feb 29.
Isophlorins and its analogues bridge the structural features between porphyrins and annulenes. Invariably they are known to be unstable but can be stabilized by appropriate substituents in the core and periphery of a macrocycle. Solid-state characterization of these 20pi systems displays planarity for each macrocycle and even in their supramolecular arrangement due to C-H...F-C interactions.
异卟啉及其类似物弥合了卟啉和轮烯之间的结构特征。它们无一例外都被认为是不稳定的，但可以通过大环核心和外围的适当取代基来实现稳定。这些20π体系的固态表征显示，每个大环甚至在其超分子排列中都具有平面性，这是由于C-H...F-C相互作用所致。
