作者:Xingqiang Lü、Weiyu Bi、Wenli Chai、Jirong Song、Jianxin Meng、Wai-Yeung Wong、Wai-Kwok Wong、Richard A. Jones
DOI:10.1039/b710204f
日期:——
With the simple dinuclear ZnâNd complex [ZnNdL(H2O)(NO3)3] (1) (H2L = N,Nâ²-bis(3-methoxysalicylidene)ethylene-1,2-diamine) as the precursor, tetranuclear [Zn2Nd2L2(4,4â²-bpy)(NO3)6]·Et2O (2) and [Zn2Nd2L2(4,4â²-bpe)]·2H2O (3) (4,4â²-bpy = 4,4â²-bipyridine, 4,4â²-bpe = trans-bis(4-pyridyl)ethylene) complexes are formed: suitable choice of bidentate linkers could construct multinuclear heterometallic 3dâ4f Schiff-base complexes with improved luminescent properties, and the controlling of linker character shows a potentially effective way to the fine-tuning properties of NIR luminescence from Nd ions.
以简单的双核Zn–Nd配合物[ZnNdL(H2O)(NO3)3] (1) (H2L = N,N′-双(3-甲氧基水杨醛)亚乙基-1,2-二胺)为前驱体,合成了四核的[Zn2Nd2L2(4,4′-联吡啶)(NO3)6]·Et2O (2)和[Zn2Nd2L2(4,4′-BPE)]·2H2O (3) (4,4′-联吡啶 = 4,4′-联吡啶,4,4′-BPE = 反式双(4-吡啶基)亚乙基)配合物:适宜的双齿配体的选择可以构建具有增强发光性能的多核异金属3d–4f席夫碱配合物,并且配体性质的调控显示出对来自Nd离子的近红外发光精细调谐的有效途径。