Electron-deficient organoboranes play important roles as Lewis acid catalysts in various organic transformations, as cocatalysts in olefin polymerization, and in the activation of small molecules when combined with bulky Lewis bases (so-called frustrated Lewis pairs). The Lewis acidic properties are also exploited in the recognition of anions. Especially attractive are polyfunctional Lewsi acids, which tend to exhibit the strongest affinities due to cooperative and/or chelate effects. Conjugated systems that feature multiple tricoordinate borane moieties are also attractive for optical and electronic applications (e.g. nonlinear optics, luminescent imaging materials, OLEDs, OFETs, photovoltaics), due to extension of conjugation via the empty p-orbital and the pi-acceptor effect of boranes.Our recent work on redox-active ferrocene-based Lewis acids and Lewis pairs will be discussed. We will also report on our efforts in the area of electron-deficient luminescent boracycles.

Conjugated boracycles: Electron-deficient ring systems

247th National Meeting (2014)

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