A series of luminescent Cu(I) mixed-ligand complexes containing 2,9-dimethyl-1,10-phenanthroline and simple diphosphine ligands
A series of luminescent Cu(I) mixed-ligand complexes containing 2,9-dimethyl-1,10-phenanthroline and simple diphosphine ligands
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DOI：
10.1039/b608641a
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发表时间：
2006-01-01
影响因子：
4
通讯作者：
Tsubomura, Taro
中科院分区：
文献类型：
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作者：
Saito, Ken;Arai, Takashi;Tsubomura, Taro
制备了一系列含有 dmp (2,9-二甲基-1,10-菲咯啉) 和一个简单二膦配体 (Ph2P(CH2)(n)PPh2) 的 Cu(I) 混合配体配合物。在配合物中，[Cu(dppp)(dmp)] PF6 (n = 3) 和 [Cu-2(dppb)(2)(dmp)(2)](PF6)(2) ( n = 4) 通过 X 射线结构分析进行了表征。 dppp 配合物被表征为单核配合物，而 [Cu-2(dppb)(2)(dmp)(2)](2+) 作为双核配合物存在，其中两个 dppb 配体在两个 Cu(I) 原子之间桥接。尽管两种配合物中心金属周围的扭曲四面体结构相似，但两种配合物的 P - Cu - P 角不同。所有系列配合物在溶液中均表现出光致发光，并且发光强度随着n（n = 2 - 4）的增加而增加。尽管配合物的辐射速率常数相似，但配合物的非辐射速率常数随着n的增加而显着降低。
A series of Cu( I) mixed-ligand complexes containing dmp (2,9-dimethyl-1,10-phenanthroline) and one of simple diphosphine ligands (Ph2P(CH2)(n)PPh2) were prepared. Among the complexes, [Cu(dppp)(dmp)] PF6 (n = 3) and [Cu-2(dppb)(2)(dmp)(2)](PF6)(2) ( n = 4) were characterized by X-ray structure analyses. The dppp complex has been characterized as a mononuclear complex, while [Cu-2(dppb)(2)(dmp)(2)](2+) exists as a dinuclear complex in which two dppb ligands bridge between the two Cu( I) atoms. Although the distorted tetrahedral structures around the central metals of the two complexes are similar, the P - Cu - P angles are different between the two complexes. All of the series of complexes show photoluminescence in solution, and the intensity of the luminescence increases with n ( n = 2 - 4). The non-radiative rate constants of the complexes decrease markedly with n although radiative rate constants of the complexes are similar.