Abstract—Large single-crystal films of p-sexiphenyl and its derivative with terminal trimethylsilyl substituents are grown under physical-vapor-transport conditions. The structure of the single-crystal films is studied by X-ray diffraction. In the crystals of the trimethylsilyl derivative there is a significant shift of molecular π systems relative to each other inside the (001) layers with “herringbone” packing in comparison with the crystal structure of p-sexiphenyl. The optical absorption and photoluminescence spectra of the studied substances in tetrahydrofuran solutions are obtained and analyzed. The presence of –Si(CH₃)₃ terminal substituents in the molecule is found to cause a slight bathochromic shift in the absorption and photoluminescence spectra of the solutions.

摘要—在物理气相传输条件下，生长了大对苯二甲苯基及其带有末端三甲基硅烷基取代基的衍生物的单晶膜。通过X射线衍射研究单晶膜的结构。在三甲基甲硅烷基衍生物的晶体中，与对-联苯并苯基的晶体结构相比，在具有“人字形”堆积的（001）层内部，分子π系统存在相对于彼此的显着位移。获得并分析了所研究物质在四氢呋喃溶液中的光吸收光谱和光致发光光谱。-Si（CH ₃）_3的存在 发现分子中的末端取代基在溶液的吸收和光致发光光谱中引起轻微的红移。