Front Cover: Synthesis and Characterization of Soluble Directly 2,2′‐Linked Tetracene Dimer (Eur. J. Org. Chem. 11/2019)

Abstract

The Front Cover shows a piece of ice in one glass and water in another glass; the former represents the solid phase of an unsubstituted directly‐2,2'‐linked tetracene dimer (2,2'‐TD), and the latter is the solution of the multi‐substituted 2,2'‐TD. The unsubstituted 2,2'‐TD reported by Rehan's group in 2017 could not be characterized, which may have been be due to its low solubility. On the other hand, the multi‐substituted 2,2'‐TD was highly soluble in organic solvents and could be characterized by several techniques such as NMR, UV/Vis spectroscopy, and X‐ray crystallography. More information can be found in the Full Paper by T. Honda, C. Kitamura et al.