Synthesis and Characterization of Homo- and Heteroleptic Neptunium(IV) Heteroarylalkenolate Complexes

被引：0

作者：

Groedler, Dennis ^{[1
]}

Kaden, Peter ^{[1
]}

Sperling, Joseph M. ^{[2
,3
]}

Rotermund, Brian M. ^{[2
,3
]}

Scheibe, Benjamin ^{[2
,3
]}

Beck, Nicholas B. ^{[2
,3
]}

Lichtenberg, Andreas ^{[4
]}

Albrecht, Thomas E. ^{[2
,3
]}

Mathur, Sanjay ^{[4
]}

Gericke, Robert ^{[1
]}

机构：

[1] Helmholtz Zentrum Dresden Rossendorf, Inst Resource Ecol, D-01328 Dresden, Germany

[2] Colorado Sch Mines, Dept Chem & Nucl Sci, Golden, CO 80401 USA

[3] Engn Ctr, Colorado Sch Mines, Golden, CO 80401 USA

[4] Univ Cologne, Inst Inorgan & Mat Chem, Dept Chem, D-50939 Cologne, Germany

来源：

INORGANIC CHEMISTRY | 2025年 / 64卷 / 05期

关键词：

CHEMICAL-VAPOR-DEPOSITION; ORGANIC-COMPOUNDS; URANIUM; CHEMISTRY; ALKOXIDES;

D O I：

10.1021/acs.inorgchem.4c04521

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Heteroleptic AnIV (An = U, Np) chlorido-ketoenaminate complexes of the type [AnCl2(TFB-tBuA)2(THF)] (An-1 type: U-1, Np-1; TFB-tBuA = 4-(tert-butylamino)-1,1,1-trifluorobut-3-en-2-one) and the homoleptic NpIV heteroarylalkenolate complexes [Np(PyTFP)4] (Np-2, PyTFP = 1-(pyridin-2-yl)-3,3,3-trifluoroprop-1-en-2-ol) and [Np(DMOTFP)4] (Np-3, DMOTFP = 1-(4,5-dimethyloxazol-2-yl)-3,3,3-trifluoroprop-1-en-2-ol) were synthesized and characterized (SC-XRD, NMR, Vis-NIR, MS). While their solid-state structures compare well to those of their uranium analogues, the behavior in solution showed significant differences. The binding motif of the DMOTFP ligand in complex Np-3 can change to form two different complex isomers, as seen by paramagnetic chemical shifts in NMR experiments. Furthermore, the flexibility and the influence of the steric effects at the N-side of the ligands are discussed and compared with its uranium counterpart.

引用

页码：2321 / 2328

页数：8

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