【摘要】 由二苯醚制得二(2-二苯膦基)二苯醚,再经双氧水氧化得到二(2-二苯氧化膦基)二苯醚(DPEPO),然后DPEPO和2-噻吩基三氟甲基丙二酮(TTA)与铕离子配位合成Eu(TTA)3DPEPO。测试结果表明其在THF和固体薄膜中613和616nm处有很强的荧光发射。测定其熔点245℃,分解温度为343℃。与Eu(TTA)3(TPPO)2进行比较,证明中性双齿DPEPO的刚性结构增强了铕配合物的荧光性能和热稳定性,可满足于印刷包装防伪等的需要。更多还原

【Abstract】 Bis(2-(diphenylphosphino)phenyl)ether prepared by diphenyl ether was oxidized by H2O2 to obtain bis(2-(diphenylphosphino)phenyl)ether oxide (DPEPO).Eu(TTA)3DPEPO was synthesized by Eu3+ coordinating with DPEPO and TTA (TTA=2-thenoyltri fluoroacetone).The test result showed that the strong emission peaks of the complex appeared at 613nm in diluted THF and 616 nm in solid film respectively;the melting point of Eu(TTA)3DPEPO is at 245 ℃ and its thermal decomposition temperature (Td) appears at 343 ℃.In addition,compared with Eu(TTA)3(TPPO)2,Eu(TTA)3DPEPO has excellent fluorescent properties and a high thermal stability originating from the rigidity influence of DPEPO as bidentate ligand.It was concluded that Eu(TTA)3DPEPO is desirable to be used in anti-counterfeiting printing and packaging.更多还原