Versatile Coordination Modes of Multidentate Neutral Amine Ligands with Group 1 Metal Cations.

Versatile Coordination Modes of Multidentate Neutral Amine Ligands with Group 1 Metal Cations.
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具有1组金属阳离子的多齿中性胺配体的多齿中性胺配体的多功能配位模式。

DOI:
10.1021/acs.inorgchem.1c03786
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发表时间:
2022-02-28
影响因子:
4.6
通讯作者:
Lu, Erli
Lu, Erli
中科院分区:
化学2区
文献类型:
--
作者:
Davison, Nathan;Zhou, Ke;Waddell, Paul G.;Wills, Corinne;Dixon, Casey;Hu, Shu-Xian;Lu, Erli

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This work comprehensively investigated the coordination chemistry of a hexa-dentate neutral amine ligand, namely, N,N′,N”-tris-(2-N-diethylaminoethyl)-1,4,7-triaza-cyclononane (DETAN), with group-1 metal cations (Li+, Na+, K+, Rb+, Cs+). Versatile coordination modes were observed, from four-coordinate trigonal pyramidal to six-coordinate trigonal prismatic, depending on the metal ionic radii and metal’s substituent. For comparison, the coordination chemistry of a tetra-dentate tris-[2-(dimethylamino)ethyl]amine (Me6Tren) ligand was also studied. This work defines the available coordination modes of two multidentate amine ligands (DETAN and Me6Tren), guiding future applications of these ligands for pursuing highly reactive and elusive s-block and rare-earth metal complexes. The coordination modes of a newly developed hexa-dentate neutral amine ligand (DETAN) with Group 1 metals were comprehensively studied in solid state. Depending on the metal’s ionic radii and its functional groups (E of the M−E bond), the DETAN ligand could adopt four-, five-, or six-coordinate geometries, demonstrating the ligand’s versatility and flexibility.
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