Photodissociation of B鈥揘 Lewis Adducts: A Partially Fused Trinaphthylborane with Dual Fluorescence

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• 作者：Kyohei Matsuo ; Shohei Saito ; Shigehiro Yamaguchi
• 刊名：Journal of the American Chemical Society
• 出版年：2014
• 出版时间：September 10, 2014
• 年：2014
• 卷：136
• 期：36
• 页码：12580-12583
• 全文大小：294K
• ISSN：1520-5126

文摘

The synthesis of a planarized trinaphthylborane with partially fused structure is presented. This compound shows not only high chemical and thermal stability but also sufficient Lewis acidity to form Lewis adducts with pyridine derivatives in solution. The B鈥揘 Lewis adducts exhibit unprecedented photodissociation behavior in the excited state, reminiscent of the photogeneration of carbenium ions from triarylmethane leuco dyes. Consequently, these B鈥揘 Lewis adducts exhibit dual fluorescence emission arising from the initial tetracoordinate B鈥揘 adducts and the photodissociated tricoordinate boranes.