Abstract
| - Two new three-coordinate organoboron compounds tris[p-(2,2‘dipyridylamino) phenylduryl]borane(1) and tris[p-(2,2‘dipyridylamino)biphenylduryl]borane (2) have been synthesized in good yieldsby using Pd-catalyzed Suzuki−Miyauya coupling reactions between tri(p-iododuryl)borane and thecorresponding boronic acid. Both compounds display bright blue luminescence when irradiated byUV light. The emission band of both compounds is highly solvent-dependent, indicating the presenceof a highly polarized excited state. These new boron compounds are stable under air in solutionand the solid state, and are capable of binding to metal ions such as Zn(II) via the 2,2‘-dipyridylaminochelating sites. The crystal structures of 1 and 2 have been determined.
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