Using the negative hyperconjugation effect of pentafluorosulfanyl acceptors to enhance two-photon absorption in push–pull chromophores

• Main Authors: Gautam, Prabhat, Wang, Yue, Zhang, Guoxian, Sun, Handong, Chan, Julian M. W.
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2020
• Subjects: Engineering::Chemical engineering; Dyes and Pigments; Sulfur
• Online Access: https://hdl.handle.net/10356/144143
• Institution: Nanyang Technological University

A series of first-generation pentafluorosulfanyl-substituted chromophores with high two-photon cross-sections is described. The pentafluorosulfanyl functional group is a very intriguing moiety that possesses not only a strong inductive effect due to its high electronegativity but also a sizable reso...