Two dibenzobarrelene 1,3‐pentadienes and a sila derivative have been synthesized. They all show similar luminescence properties in CH₂Cl₂, whereas in the solid state, differences in the luminescence of the CH₂ and SiMe₂ derivatives and that of CHOH arise due to intermolecular hydrogen bonding in the latter. The fluorescence intensity of the SiMe₂ derivative was markedly reduced by desilylation.

中文翻译：

---

具有高荧光效率的二苯并戊二烯掺入的1,4-二苯基-1,3-戊二烯和5-Sila衍生物的合成及光物理性质

合成了两种二苯并戊烯1,3-戊二烯和一种sila衍生物。它们在CH ₂ Cl _2中都显示出相似的发光特性，而在固态下，由于后者中的分子间氢键，CH ₂和SiMe ₂衍生物的发光与CHOH的发光存在差异。SiMe ₂衍生物的荧光强度通过去甲硅烷基化而显着降低。