Synthesis and photophysical properties of imine borane adducts towards vapochromic materials†
Yashar
Soltani, 
a
Lewis C.
Wilkins,
‡a
Paul D.
Newman,
a
Simon J. A.
Pope
*a
and
Rebecca L.
Melen
*a
a
Lewis C.
Wilkins,
‡a
Paul D.
Newman,
a
Simon J. A.
Pope
*a
and
Rebecca L.
Melen
*a
Abstract
A series of alkynyl aryl conjugated aldehydes and imines were prepared and their adducts with various Lewis acidic boranes have been studied via NMR, absorption, and luminescence spectroscopies in solution. The imine-B(C6F5)3 adduct showed remarkable solution stability, and was then trialled in vapochromism experiments using simple impregnated paper strips to examine the fluorescence responses.
- This article is part of the themed collection: Celebrating our 2019 Prize and Award winners
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