The Use of Tethered Addends to Decrease the Number of Isomers of Bisadduct Analogues of PCBM†

摘要

Roped in: The number of isomers present in the bisadduct analogue PCBM (bis-PCBM; PCBM=phenyl-C₆₁-butyric acid methyl ester), a recently introduced acceptor for bulk heterojunction organic photovoltaic devices, has been reduced to seven by linking two tosylhydrazone addends with an ethylene glycol tether and reacting them with C₆₀.