Chapter 7: Chalcogen–Nitrogen Heterocyclic Radicals Check Access
-
Published:15 Feb 2023
-
Special Collection: 2023 ebook collection
A. V. Zibarev, in Chalcogen Chemistry: Fundamentals and Applications, ed. V. Lippolis, C. Santi, E. J. Lenardão, and A. L. Braga, The Royal Society of Chemistry, 2023, ch. 7, pp. 168-186.
Download citation file:
Recent progress in organic spin science associated with neutral 1,2,3- and 1,3,2-benzodichalcogenazolyls (Herz and Wolmershäuser radicals, respectively), and anionic 2,1,3-benzochalcogenadiazolidyls and 1,2,3-benzodichalcogenazolidyls, involved in the design and synthesis of molecular conductive and magnetic materials, including spin-crossover materials, is discussed. Where reasonable, the monocyclic analogues and other relevant ring systems are covered. Typically, S incarnations are better studied than Se and, especially, Te ones. Meanwhile, the latter are of enhanced interest due to stronger spin–orbit coupling, higher polarizability, and a larger propensity to secondary soft–soft bonding interactions. Their synthesis and characterization are challenging for further research.