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MDPI, Inorganics, 3(11), p. 104, 2023

DOI: 10.3390/inorganics11030104

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Neptunyl(VI) Nitrate Coordination Polymer with Bis(2-pyrrolidone) Linkers Highlighting Crystallographic Analogy and Solubility Difference in Actinyl(VI) Nitrates

Journal article published in 2023 by Tomoyuki Takeyama ORCID, Juliane März ORCID, Ryoma Ono ORCID, Satoru Tsushima ORCID, Koichiro Takao
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

NpO2(NO3)2 units are connected by bis(2-pyrrolidone) linker molecules with the trans-1,4-cyclohexyl bridging part (L1) to form a one-dimensional coordination polymer, [NpO2(NO3)2(L1)]n. Molecular and crystal structures of this compound are nearly identical to that of the UO22+ analogue, while its aqueous solubility is greatly enhanced, probably owing to weaker thermodynamic stability of the complexation in NpO22+ compared with that in UO22+.