Department of Inorganic, Organic Chemistry and Biochemistry, Faculty of Chemical Science and Technologies, University of Castilla-La Mancha-IRICA, 13071 Ciudad Real, Spain.
Madrid Institute for Advanced Studies, IMDEA Nanociencia, Calle Faraday 9, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain.
Molecules. 2023 Jun 8;28(12):4631. doi: 10.3390/molecules28124631.
A new series of donor-acceptor-donor (D-A-D) structures derived from arylethynyl 1-benzo[]imidazole was synthesized and processed into single crystals with the goal of testing such crystals' ability to act as optical waveguides. Some crystals displayed luminescence in the 550-600 nm range and optical waveguiding behavior with optical loss coefficients around 10 dB/μm, which indicated a notable light transport. The crystalline structure, confirmed by X-ray diffraction, contains internal channels that are important for light propagation, as we previously reported. The combination of a 1D assembly, a single crystal structure, and notable light emission properties with low losses from self-absorption made 1-benzo[]imidazole derivatives appealing compounds for optical waveguide applications.
合成了一系列新型的基于芳基乙炔基 1-苯并[]咪唑的给体-受体-给体（D-A-D）结构，并将其加工成单晶，以测试这些晶体作为光波导的能力。一些晶体在 550-600nm 范围内显示出发光，并具有约 10dB/μm 的光导行为，这表明有明显的光传输。晶体结构通过 X 射线衍射得到证实，其中包含内部通道，这对于光传播很重要，正如我们之前报道的那样。1-苯并[]咪唑衍生物具有一维组装、单晶结构和显著的发光性能，同时自吸收损耗低，因此成为光学波导应用的有吸引力的化合物。
