新型铱(Ⅲ)配合物有机磷光材料的合成及性能研究

以苯甲酰氯及其衍生物、邻氨基苯硫酚等为原料, 通过与无水三氯化铱及乙酰丙酮配合, 合成了一系列新型的取代2-苯基苯并噻唑合铱(Ⅲ)的乙酰丙酮类配合物有机磷光材料, 并对产物进行了核磁、红外、质谱和元素分析等结构表征及溶解性能、热稳定性和紫外吸收光谱、荧光光谱等发光性能的研究. 结果表明, 此类配合物在二甲亚砜和三氯甲烷等有机溶剂中具有良好的溶解性; 配合物分解温度高, 可达338～360 ℃, 具有较高的热稳定性, 其高温升华现象十分有利于真空热蒸镀薄膜的制备; 此类配合物在紫外-可见吸收光谱上的250～350 nm处出现了强的配体自旋, 允许单重态π-π*跃迁吸收峰, 在400～530 nm处出现了配合物分子内金属铱到配体的单重态和三重态电荷跃迁吸收峰(1MLCT和3MLCT); 同时, 该类铱(Ⅲ)配合物在发射光谱560～600 nm处出现了强的黄光发射, 并且在室温下表现出较高的荧光量子效率.     

2-(对叔丁基-苯基)-苯并噻唑合铱(Ⅲ)的乙酰丙酮配合物的合成及性质

以对叔丁基苯甲酰氯、邻氨基苯硫酚为原料,通过与铱的三氯化物配合,合成了一种新型金属铱(Ⅲ)的2-(对叔丁基-苯基)苯并噻唑配合物(t-bt)2Ir(acac),对产物进行了核磁、红外、质谱和元素分析等结构表征及溶解性、热性能和发光性能的研究.     

Helium-hydrogen synergistic effects on swelling in in-situ multiple-ion beams irradiated steels

The development of reliable fusion energy is one of the most important challenges in this century. The accelerated degradation of structural materials in fusion reactors caused by neutron irradiation would cause severe problems. Due to the lack of suitable fusion neutron testing facilities, we have to rely on ion irradiation experiments to test candidate materials in fusion reactors. Moreover, fusion neutron irradiation effects are accompanied by the simultaneous transmutation production of helium and hydrogen. One important method to study the He-H synergistic effects in materials is multiple simultaneous ion beams (MSIB) irradiation that has been studied for decades. To date, there is no convincing conclusion on these He-H synergistic effects among these experiments. Recently, a multiple ion beam in-situ transmission electron microscopy (TEM) analysis facility was developed in Xiamen University (XIAMEN facility), which is the first triple beam system and the only in-running in-situ irradiation facility with TEM in China. In this work, we conducted the first high-temperature triple simultaneous ion beams irradiation experiment with TEM observation using the XIAMEN facility. The responses to in-situ triple-ion beams irradiation in austenitic steel 304L SS and ferritic/martensitic steel CLF-1 were studied and compared with the results in dual- and single-ion beam(s) irradiated steels. Synergistic effects were observed in MSIB irradiated steels. Helium was found to be critical for cavity formation, while hydrogen has strong synergistic effect on increasing swelling.     

一种新型金属铱(Ⅲ)类配合物磷光材料的合成及性能研究

以间硝基苯甲酸、邻氨基苯硫酚为初始原料,合成了一种2-(间硝基-苯基)苯并噻唑配体,并通过与铱的无水三氯化物配合,合成了一种新型的金属铱(Ⅲ)类配合物(m-NO₂-bt)₂Ir(acac),对产物进行了核磁共振谱、红外光谱、质谱和元素分析等结构表征及溶解性、热稳定性能和紫外吸收光谱、荧光光谱等发光性能的研究。结果表明,该配合物在二甲亚砜、三氯甲烷等有机溶剂中具有良好的溶解性能。热重分析表明,该配合物分解温度在346 ℃,具有较高的热稳定性。配合物在