Nesmelov A, Lee D, Bejger C, Kocherga M, Lyles Z, Greenier MK, Vitallo AA, Kaouk G, Jones DS, Schmedake TA. Accessing new microporous polyspirobifluorenes via a C/Si switch.
Chem Commun (Camb) 2020;
56:9846-9849. [PMID:
32716444 DOI:
10.1039/d0cc02767g]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Microporous spirosilabifluorene networks were synthesized via Yamamoto coupling of tetrabromospirosilabifluorene precursors. They exhibit bright fluorescence that is quenched in the presence of nitroaromatics. The C/Si switch has subtle effects on the optical properties of the spirobifluorene network and provides a convenient route to 3,3',6,6'-coupled and other polybifluorenes.
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