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首页> 外文期刊>Chemistry: A European journal >Electronic and optical properties of ladder-type heteraborins
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Electronic and optical properties of ladder-type heteraborins

机译：梯型杂菌素的电子和光学性质

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Ladder-type pi-conjugated molecules bearing heteraborin (azaborine or thiaborin) units were synthesized, and X-ray crystallographic analysis of pentacene-type molecules showed that these molecules have rigid and planar structures. UV-visible spectroscopy and theoretical calculations revealed the enhancement of electronic interaction between heteraborin units, the decrease in HOMO-LUMO energy gaps, and the strong effect of the bridging main-group elements (nitrogen or sulfur) on the electronic states. The ladder-type molecules emitted strong fluorescence both in solution and in the solid state, and the emission-band shapes were different from each other, indicating the existence of intermolecular interactions in the solid state. Complex formation of the ladder molecules with fluoride ion was monitored by UV-visible spectroscopy, which revealed that the Lewis acidity of these molecules can be controlled by the elongation of it systems and the change of the bridging main-group elements.
机译：合成了带有杂菌素（天青素或硫杂硼烷）单元的梯型pi共轭分子，并五苯型分子的X射线晶体学分析表明这些分子具有刚性和平面结构。紫外可见光谱法和理论计算表明杂合蛋白单元之间电子相互作用的增强，HOMO-LUMO能隙的减小以及桥联主族元素（氮或硫）对电子态的强烈影响。梯形分子在溶液和固态中均发出强荧光，并且发射带形状互不相同，表明在固态中存在分子间相互作用。通过紫外-可见光谱监测梯形分子与氟离子的复杂形成，这表明这些分子的路易斯酸度可以通过其体系的伸长和桥联主族元素的变化来控制。

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