Neptunyl(VI) Nitrate Coordination Polymer with Bis(2-pyrrolidone) Linkers Highlighting Crystallographic Analogy and Solubility Difference in Actinyl(VI) Nitrates
oleh: Tomoyuki Takeyama, Juliane März, Ryoma Ono, Satoru Tsushima, Koichiro Takao
| Format: | Article |
|---|---|
| Diterbitkan: | MDPI AG 2023-03-01 |
Deskripsi
NpO<sub>2</sub>(NO<sub>3</sub>)<sub>2</sub> units are connected by bis(2-pyrrolidone) linker molecules with the <i>trans</i>-1,4-cyclohexyl bridging part (<b>L1</b>) to form a one-dimensional coordination polymer, [NpO<sub>2</sub>(NO<sub>3</sub>)<sub>2</sub>(<b>L1</b>)]<sub>n</sub>. Molecular and crystal structures of this compound are nearly identical to that of the UO<sub>2</sub><sup>2+</sup> analogue, while its aqueous solubility is greatly enhanced, probably owing to weaker thermodynamic stability of the complexation in NpO<sub>2</sub><sup>2+</sup> compared with that in UO<sub>2</sub><sup>2+</sup>.