Bridged Tolanes: Makeover of a Chromophore

通过合作，Bunz（合成，OCI，海德堡大学）、drew（量子化学计算，IWR，海德堡大学）和Beeby（外部合作伙伴，英国达勒姆大学）研究了扭曲对取代和桥接二苯基乙炔（甲苯）的电子和光学性质的影响。初步结果强烈地表明，这些目标显示出非常不寻常的、有吸引力的、扭曲相关的光学和电子特性。一些扭曲的甲苯显示出有效的磷光，寿命很长（2s）。在我们的项目中，我们将在合成化学、量子化学计算和时间分辨低温光谱的共同努力下，评估和扩大桥接和扭曲的甲苯的潜力。

In a cooperative approach, Bunz (synthesis, OCI, U of Heidelberg), Dreuw (quantum chemical calculations, IWR, U of Heidelberg) and Beeby (external cooperation partner, Durham U, UK), investigate the impact of twisting upon the electronic and optical properties of substituted and bridged diphenylacetylenes (tolanes). Preliminary results strongly suggest that these targets show highly unusual yet attractive, twist-dependent optical and electronic properties. Some of the twisted tolanes show efficient phosphorescence with very long (2 s) lifetimes. In our project we will - in a concerted effort between synthetic chemistry, quantum chemical calculations and time resolved low temperature spectroscopy - evaluate and expand the potential of the bridged and twisted tolanes.