Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido, 001-0021, Japan.
Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, N13 W8, Kita-ku, Sapporo, Hokkaido, 060-8628, Japan.
Chemistry. 2019 Sep 20;25(53):12308-12315. doi: 10.1002/chem.201902583. Epub 2019 Aug 21.
Oxygen-sensitive and near-infrared (NIR) luminescent Yb coordination polymers incorporating ligands based on pyrene derivatives were synthesized: Yb -TBAPy and Yb -TIAPy (TBAPy: 1,3,6,8-tetrakis(p-benzoate)pyrene; TIAPy: 1,3,6,8-tetrakis(3,5-isophthalic acid)pyrene). The coordination structures of these materials have been characterized by means of electrospray ionization mass spectrometry, X-ray diffraction analysis, and thermogravimetric analysis. Moreover, the porous structure of Yb -TIAPy has been evaluated by measuring its N adsorption isotherm. The NIR luminescence properties of Yb -TBAPy and Yb -TIAPy have been examined by acquiring emission spectra and determining emission lifetimes under air or argon and in vacuo. Yb -TIAPy exhibited high thermal stability (with a decomposition temperature of 400 °C), intense luminescence (with an emission quantum yield under argon of 6.6 %), and effective oxygen-sensing characteristics. These results suggest that NIR luminescent Yb coordination polymers prepared using pyrene derivatives could have applications in novel thermo-stable oxygen sensors.
合成了基于芘衍生物的配体的氧敏和近红外（NIR）发光 Yb 配位聚合物：Yb-TBAPy 和 Yb-TIAPy（TBAPy：1,3,6,8-四（对苯甲酸盐）芘；TIAPy：1,3,6,8-四（3,5-异酞酸）芘）。通过电喷雾质谱、X 射线衍射分析和热重分析对这些材料的配位结构进行了表征。此外，通过测量其 N 吸附等温线评估了 Yb-TIAPy 的多孔结构。通过获取发射光谱并在空气或氩气中和真空中确定发射寿命，研究了 Yb-TBAPy 和 Yb-TIAPy 的近红外发光性质。Yb-TIAPy 表现出高热稳定性（分解温度为 400°C）、强发光（在氩气中的发射量子产率为 6.6%）和有效的氧传感特性。这些结果表明，使用芘衍生物制备的近红外发光 Yb 配位聚合物可能在新型热稳定氧传感器中有应用。
