Spacer, the final frontier: The pyrene-tethered carborane CBEP exhibited orange emission at room temperature, which was caused by intramolecular charge transfer in the solid state, and green excimer emission at 77 K. The steric influence of an ethynyl spacer group allowed the o-carborane to suppress aggregation-caused quenching without the inhibition of excimer formation.

中文翻译：

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固态热致变色发光通过扭曲的分子内电荷转移和带有乙炔基间隔基的碳硼烷-二聚体的准分子形成。

间隔子，最后一个前沿：-系碳硼烷CBEP在室温下显示橙色发射，这是由于固态分子内电荷转移引起的，而在77 K时则显示绿色准分子发射。乙炔基间隔基的空间影响使得o -碳硼烷可抑制聚集引起的猝灭，而不会抑制受激准分子的形成。