“眼镜”状碘化亚铜配合物的调光和双光子发光性质

将半柔性的π-不饱和双吡啶端基配体3-pebtd与CuI分别在不同的溶剂中分层扩散, 经自组装得到8种具有Cu₂I₂L₂构型的眼镜状碘化亚铜配合物. 利用X射线单晶衍射、 X射线粉末衍射和元素分析等方法确定了配合物的结构. 对配合物的光物理性质进行了表征, 结果表明, 不同溶剂中自组装得到的配合物的单光子发光均表现出单一荧光峰, 这可归因于卤素到配体的电荷转移( ³XLCT); 并且这些配合物的发光颜色由492 到518 nm可调, 量子产率为33.1%~68.5%. 同时, 这类配合物表现出较优异的双光子发光性质, 有望将其用于生物成像领域.

Glass-like Cuprous Iodide Complexes with Photoluminescence Tuning and Two-photon Emission Properties

Eight kinds of glass-like cuprous iodide complexes with Cu 2I 2L 2 configurations were self-assembled from CuI with semi-flexible 3-pebtd ligand with unsaturatedπ-backbone and bipodal pyridine terminals in different solvents.The complexes were characterized by X-ray single crystal diffraction,X-ray powder diffraction,elemental analysis,and so on.The photophysical properties of the complexes were studied,and the results show that the one-photon emissions of the complexes obtained in different solvents show single fluorescence bands assigning to the halogen to ligand charge transfer(3 XLCT).The luminescent colors of the complexes were adjustable from 492 to 518 nm,and the quantum yield was 33.1%~68.5%.At the same time,these complexes exhibit excellent two-photon emission properties and are expected to be used in the field of biological imaging.