Photophysical and electrochemical properties of heteroleptic tris-cyclometallated Ir(III) complexes
Photophysical and electrochemical properties of heteroleptic tris-cyclometallated Ir(III) complexes
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DOI：
10.1016/j.poly.2007.01.030
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发表时间：
2007-07
期刊：
影响因子：
2.6
通讯作者：
Li-Lan Wu;I. Sun;Chengyong Yang
中科院分区：
文献类型：
--
作者：
Li-Lan Wu;I. Sun;Chengyong Yang
一些新的杂配三环金属铱(III)配合物已被合成并充分表征。在这些铱(III)配合物中，双(1-苯基吡唑基-N,C2')铱(III)[5-(2'-吡啶基)四唑基](3)和双(3-甲基-1-苯基吡唑基-N,C2')铱(III)[5-(2'-吡啶基)四唑基](4)在室温下表现出优异的量子产率，电子密度受引入吡啶四唑配体，使得kr>knr。这破坏了基于苯基吡唑的铱络合物的概念。
Some new heteroleptic tris-cyclometallated iridium(III) complexes have been synthesized and fully characterized. Among these iridium(III) complexes, bis(1-phenylpyrazolato-N,C2′)iridium(III)[5-(2′-pyridyl)tetrazolate] (3) and bis(3-methyl-1-phenylpyrazolato-N,C2′)iridium(III)[5-(2′-pyridyl)tetrazolate] (4) show excellent quantum yields at room temperature, the electron density being perturbed by introducing the pyridyltetrazole ligand, making kr>knr. This destroys the concept of phenylpyrazole based iridium complexes.