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| Content Provider | Springer Nature Link |
|---|---|
| Author | Grigor’ev, M. S. Charushnikova, I. A. Fedoseev, A. M. |
| Copyright Year | 2015 |
| Abstract | New Np(V) isophthalate complexes of the compositions [(NpO$_{2}$)$_{2}$(C$_{6}$H$_{4}$(COO)$_{2}$)(H$_{2}$O)]·H$_{2}$O (I) and M[(NpO$_{2}$)(C$_{6}$H$_{4}$(COO)$_{2}$)]·nH$_{2}$O, where M = [H$_{3}$O] (IIa), [NH$_{4}$] (IIb), and [C(NH$_{2}$)$_{3}$] (IIc), were synthesized and studied by single crystal X-ray diffraction. Cation-cation interaction was revealed in their structure. In the structure of I, each of three nonequivalent NpO$_{2}$ groups is a bidentate ligand and simultaneously coordinates two adjacent neptunyl(V) ions to form “square” cationic networks. The cationic networks in the crystal are linked by bridging [C$_{6}$H$_{4}$(COO)$_{2}$]$^{2−}$ anions exhibiting the coordination capacity equal to 5. Three independent Np atoms are characterized by different shapes of the coordination polyhedron (CP): hexagonal, pentagonal, and tetragonal bipyramids. Tetrameric cationic complexes in which each NpO$_{2}$ group is a monodentate ligand and a coordination center for the adjacent group are formed in the structure of II. The cationic complexes are linked by the bridging [C$_{6}$H$_{4}$(COO)$_{2}$]$_{2−}$ anions whose coordination capacity is 4; the CPs of the Np atoms are pentagonal bipyramids. In the structure of II, replacement of relatively small outer-sphere hydroxonium and ammonium cations by guanidinium cation does not alter the overall structural motif of the crystal. |
| Starting Page | 386 |
| Ending Page | 394 |
| Page Count | 9 |
| File Format | |
| ISSN | 10663622 |
| Journal | Radiochemistry |
| Volume Number | 57 |
| Issue Number | 4 |
| e-ISSN | 16083288 |
| Language | English |
| Publisher | Pleiades Publishing |
| Publisher Date | 2015-08-02 |
| Publisher Place | Moscow |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | neptunium(V) isophthalate cation-cation interaction crystal structure Nuclear Chemistry Chemistry/Food Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physical and Theoretical Chemistry |
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