Structural Versatility of Uranyl(VI) Nitrate Complexes That Involve the Diamide Ligand Et
<sub>2</sub>
N(C=O)(CH
<sub>2</sub>
)
<i>
<sub>n</sub>
</i>
(C=O)NEt
<sub>2</sub>
(0 ≤
<i>n</i>
≤ 6)
作者:Sandrine Wahu、Jean‐Claude Berthet、Pierre Thuéry、Dominique Guillaumont、Michel Ephritikhine、Régis Guillot、Gérard Cote、Carole Bresson
DOI:10.1002/ejic.201200243
日期:2012.8
interaction of uranyl nitrate with the series of diamides Et2N(C=O)(CH2)n(C=O)NEt2 (0 ≤ n ≤ 6) was investigated to evaluate systematically the effect of the (CH2)n spacer on the solid-state structures of the corresponding uranyl complexes. Under aerobic conditions, [UO2(NO3)2·6H2O] reacted with an excess amount of these diamides (L) in organic solvents to yield [UO2(κ2-NO3)2(L)] 1 [n = 0, tetraethyloxalamide
研究了硝酸铀酰与一系列二酰胺 Et2N(C=O)(CH2)n(C=O)NEt2 (0 ≤ n ≤ 6) 的相互作用,以系统地评估 (CH2)n 间隔物对固体的影响-相应铀酰配合物的状态结构。在有氧条件下,[UO2(NO3)2·6H2O]在有机溶剂中与过量的这些二酰胺(L)反应生成[UO2(κ2-NO3)2(L)]1[n=0,四乙基草酰胺( TEOA)], 2 [n = 1, 四乙基丙二酰胺 (TEMA)], 3 [n = 2, 四乙基琥珀酰胺 (TESA)], 5 [n = 3, 四乙基乙醇酰胺 (TEGA)], 6 [n = 4, 四乙基己二酰胺 (TEAA) ]、7 [n = 5,四乙基庚二酰胺 (TEPA)] 和 8 [n = 6,四乙基辛基酰胺 (TESUA)]},通过 1H NMR、ESI-MS、IR 和拉曼光谱对其进行分离和表征。在无水和厌氧条件下,[UO2(OTf)2] (OTf