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本文以对羟基苯甲醛和3-溴丙炔为原料,经过巯基-炔基点击化学反应成功合成了含有双四重氢键的2,6-二碘代-8-[4-(2-脲基-4[1H]-嘧啶酮)苯基]-氟化硼二吡咯甲川化合物(IBodipy-BisUPy),并对其进行了详细的结构表征以及紫外、荧光、瞬态吸收、低温磷光等光物理性质测试。I-Bodipy-BisUPy可通过四重氢键非共价键作用驱动形成超分子聚合物。重原子碘的存在促进了I-Bodipy-BisUPy从单重激发态向三重激发态的系间窜越,可在低温下呈现一个近红外磷光发射峰,其三重态的寿命为56.7μs。利用微乳法将超分子聚合物制备成纳米颗粒,ESR和对1,5-二羟基萘的光敏氧化性能测试表明此超分子聚合物纳米颗粒可在水中产生单重态氧(1O2),且能够实现对底物的光敏氧化。
In this paper, p-hydroxybenzaldehyde and 3-bromopropyne were used as starting materials to synthesize 2,6-diiodo-8- [4- (2-urea Phenyl] -bipyrodipy-BisUPy, and its structure was characterized and its photophysical properties such as UV, fluorescence, transient absorption and low temperature phosphorescence Nature test. I-Bodipy-BisUPy can drive the formation of supramolecular polymers through the non-covalent bonding of four hydrogen bonds. The presence of heavy atomic iodine promoted the intersystem crossing of the I-Bodipy-BisUPy from the singlet excited state to the triplet excited state and showed a near-infrared phosphorescence emission peak at low temperature with a life of 56.7 μs for the triplet state. Microemulsion method was used to prepare nanoparticles into nanoparticles. ESR and photooxidation of 1,5-dihydroxynaphthalene showed that the supramolecular nanoparticles could generate singlet oxygen (1O2) in water, and A photosensitive oxidation of the substrate can be achieved.