中文摘要：

以2,4-二氟苯硼酸、4,4＇-二溴-2,2＇-联吡啶为原料合成了4,4＇-二（2,4-二氟苯基）-2,2＇-联吡啶,并以此为N^N配体合成新型离子型环金属钌配合物。采用元素分析、红外光谱、1H-NMR以及质谱表征确认了产物的结构,并考察了其光物理性能。结果表明,联吡啶4,4＇-位上取代基团的引入改变了配合物的MLCT态,使其最大发射波长（λmax）较经典配合物Ru（bpy）32＋（λmax=590 nm）红移至613 nm;配合物的初始分解温度为356℃,具有较好的热稳定性。

英文摘要：

A new cyclometalated ruthenium complex was synthesized from 2,4-difluorobenzeneboronic acid, 4,4＇-dibromo-2,2＇-bipyridine and cis-bis-（2,2＇-bipyridine）dichlororuthenium（II） dehydrate. The complex was characterized by element analysis, IR spectra, 1H-NMR and mass spectrometry. Its UV-Vis absorption and photoluminescence was measured. The data showed that an introduction of the 2,4-difluoro-phenyl substituent into the 4,4＇-site of 2,2＇-bipyridine would alter metal-to-ligand charge transfer （MLCT） transition, leading to a significant red shift of the photoluminescence spectra （λmax） from 590 to 613 nm. The cyclometalated ruthenium complex, as evidenced by TG measurements, has good thermo- stability and the decomposition temperature is up to 356℃.