A trivalent scandium complex with 4′‐phenyl‐2,2′:6′,2′′‐terpyridine [ScCl₃(ptpy)] has been synthesized and characterized. At low temperatures, [ScCl₃(ptpy)] shows a luminescence afterglow of green color in the crystalline form and of cyan color in a glass matrix, caused by phosphorescence of long triplet state emission lifetime (1.63(2) s in a glass matrix, 0.56(3) s in the crystalline form). In addition, the complex is thermally remarkably stable up to 495 °C, especially in comparison with previously reported similar lanthanide and group 3 metal chloride complexes containing ptpy.

中文翻译：

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[ScCl3（ptpy）]的磷光余辉和热学性质（ptpy：4'-苯基-2-2,2'，6'，2''-叔吡啶）

合成并表征了具有4'-苯基-2,2'：6'，2''-三吡啶[ScCl ₃（ptpy）]的_三价scan配合物。在低温下，[ScCl ₃（ptpy）]显示出玻璃基质中结晶形式的绿色和青色的发光余辉，这是由于三重态发射寿命长（磷在玻璃基质中为1.63（2）s）引起的，结晶形式的0.56（3）s）。此外，该络合物在高达495°C的温度下具有非常明显的热稳定性，尤其是与先前报道的类似含ptpy的镧系元素和第3组金属氯化物络合物相比。