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Neptunium(V) Complexes with Lipophilic N‐Donor Extractant Ligands
ChemistrySelect ( IF 1.9 ) Pub Date : 2020-11-27 , DOI: 10.1002/slct.202004025
Grigory Andreev 1 , Nina Budantseva 1
Affiliation  

Neptunium(V) complexes with N‐donor lipophilic extractants, 2,2′:6′,2′′‐terpyridine (Terpy), 2,4,6‐tri‐2‐pyridyl‐1,3,5‐triazine (TPTZ), and 6,6’‐bis(5,6‐diethyl‐1,2,4‐triazin‐3‐yl)‐2,2’bipyridine (C2‐BTBP), have been synthesized and characterized by X‐ray crystallography as well as vis‐NIR and IR spectroscopy. The structures display coordination of one N‐donor ligand to the NpO2+ group. In all cases, the Np atom is found in a pentagonal bipyramidal coordination environment. The structures exhibit 0D topologies, except the neptunium formate complex with terpyridine, where the anion acts as a bridging ligand and forms an infinite chain structure. The complex with C2‐BTBP is the first example of a structurally characterized Np complex with this ligand. Vis‐NIR and IR spectra of the compounds correlate with their crystal structures.

中文翻译:

Lip(V)配合物,具有亲脂性的N-供体提取剂配体

N(V)与N供体亲脂性萃取剂,2,2':6',2''-吡啶(Terpy),2,4,6-三-2-吡啶基-1,3,5-三嗪(TPTZ)的络合物)和6,6'-双(5,6-二乙基-1,2,4-三嗪-3-基)-2,2'联吡啶(C2-BTBP)并通过X射线晶体学表征以及近红外和红外光谱。结构显示一种N-供体配体与NpO 2 +的配位组。在所有情况下,Np原子都存在于五边形双锥体配位环境中。该结构表现出0D拓扑,除了甲酸ter与叔吡啶的络合物外,其中阴离子充当桥连配体并形成无限链结构。具有C2-BTBP的复合物是具有该配体的结构表征的Np复合物的第一个实例。化合物的Vis-NIR和IR光谱与其晶体结构相关。
更新日期:2020-11-27
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