The crystal structure of the eight-coordinated erbium(III) complex with the tetradentate ligand N,N′-ethylene-bis(salicylaldimine)
The crystal structure of the eight-coordinated erbium(III) complex with the tetradentate ligand N,N′-ethylene-bis(salicylaldimine)
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DOI：
10.1016/s0020-1693(00)89295-6
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发表时间：
1989-01
影响因子：
2.8
通讯作者：
S. Mangani;A. Takeuchi;S. Yamada;P. Orioli
中科院分区：
文献类型：
--
作者：
S. Mangani;A. Takeuchi;S. Yamada;P. Orioli
用X射线衍射法测定了Er（III）（salen）2（pipH）[salen=N，N '-亚乙基-双（水杨醛亚胺），pipH=哌啶鎓]的晶体结构。该化合物的结构由[Er（salen）2]− 1阴离子和pipH+阳离子组成。在配合物阴离子中，铒（III）离子被两个四齿Salen配体的供体原子八配位，形成具有近似D2对称性的扭曲正方形反棱柱。Er <$O和Er <$N的平均距离分别为2.270和2.511 μ m。这是第一次测定镧系元素与四齿配体配合物的结构。
The crystal structure of Er(III)(salen)2(pipH) [salen=N,N′-ethylene-bis(salicylaldimine),pipH= piperidinium] has been determined by X-ray diffraction. The structure of the compound consists of [Er(salen)2]−1anions and pipH+cations. In the complex anion the erbium(III) ion is eight-coordinated by the donor atoms of two tetradentate salen ligands, forming a distorted square antiprism with approximateD2symmetry. The ErO and ErN distances average respectively 2.270 and 2.511 Å. This is the first structural determination of a lanthanide element complex with a tetradentate ligand.