Accessing new microporous polyspirobifluorenes via a C/Si switch

Abstract

A C/Si switch provides easy access to polybrominated spirosilabifluorenes with tailorable regioselectivities. Yamamoto coupling leads to fluorescent microporous materials that can act as a sensor for nitroaromatics.

Significant energy gap modulation of sulfone-substituted benzosiloles: enhanced brightness and electron affinity for chemical vapor sensing, fingerprint detection and live-cell imaging

“…19 A few facile and innovative synthetic strategies for benzosilole derivatives have been established for developing novel structures and functionalities in recent years. 17,[20][21][22][23][24][25][26][27][28][29][30] However, on the basis of the developed advantages, it still remains a great challenge to further improve the performance of benzosilole derivatives, that is, extending the fluorescence to longer wavelengths with high color purity and brightness, which is of vital importance to the currently widespread applications. [31][32][33][34][35] On the other hand, the emission colors and brightness could be significantly tuned by grafting sulfone groups onto the conjugated molecules.…”