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Records on synthesis of neptunium compounds, recovery and reuse of neptunium by professor N. N. KROT

Publikováno v: JAERI-Review 2002-040. :1-23

Krot教授は、当時の先端基礎研究センター・アクチノイドメスバウア分光研究グループの招聘に応じ、1997年1月16日(木曜日)から1997年2月28日(金曜日)までの45日間、日本原子力研究所・東海�

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https://jopss.jaea.go.jp/search/servlet/search?21434

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Cation–Cation Interaction in Complexes of Np(V) Benzoate and Salicylate with N-Containing Molecular Ligands

Autor: I. A. Charushnikova, N. N. Krot, V. P. Perminov

Publikováno v: Radiochemistry. 62:9-17

The hydrothermal method was used to obtain two new compounds of Np(V): benzoate [(NpO2)3(py) (C7H5O2)3(H2O)2] (1) and salicylate [(NpO2)(phen)(HOC7H4O2)] (2), where py = pyridine and phen = 1,10-phenanthroline. An X-ray diffraction analysis of these

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d10937d11dadd0fe204db968a723d673
https://doi.org/10.1134/s1066362220010026

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Synthesis and Structure of Complexes of Np(V) Benzoate, o-Fluorobenzoate, and p-Fluorobenzoate with 1,10-Phenanthroline

Autor: N. N. Krot, I. A. Charushnikova, M. S. Grigor’ev

Publikováno v: Radiochemistry. 61:300-308

The structures of three new Np(V) complexes [(NpO2)2(phen)2(C7H5O2)2] (I), [(NpO2)2(phen)2. (o-C7H4FO2)2] (II), and [(NpO2)2(phen)2(p-C7H4FO2)2] (III), where phen = 1,10-phenanthroline, were studied. Two NpO2+ cations in the complexes are bound to ea

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::966151982bc81eea321c5e331641be54
https://doi.org/10.1134/s1066362219030032

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Synthesis and Structure of the Np(VII) Complex with Guanidinium, Li[C(NH2)3]2[NpO4(OH)2]·6H2O

Autor: V. P. Perminov, N. N. Krot, I. A. Charushnikova

Publikováno v: Radiochemistry. 60:521-526

The previously unknown Np(VII) compound Li[C(NH2)3]2[NpO4(OH)2]·6H2O (I), containing organic cations, was synthesized and studied by single crystal X-ray diffraction. In contrast to the relatively numerous structurally characterized salts of [NpO4(O

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::230d7e7930b1e5200bba8fb073090bf4
https://doi.org/10.1134/s1066362218050077

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Synthesis and Structure of Mixed-Cation Salts with [PuO4(OH)2]3– Anions

Autor: I. A. Charushnikova, M. S. Grigor’ev, N. N. Krot

Publikováno v: Radiochemistry. 60:233-240

Mixed-cation salts of the general composition NaM2[NpO4(OH)2]·4H2O, where M = Rb (I, II) and Cs (III), were synthesized and structurally characterized. The compounds differ from each other in the structural organization. The Np central atom in [NpO4

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::048fe822501bbaf620a0f0db845148a9
https://doi.org/10.1134/s1066362218030025

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Synthesis and Structure of Mixed-Cation Salts with [NpO4(OH)2]3– Anions

Autor: M. S. Grigor’ev, N. N. Krot, I. A. Charushnikova, V. P. Perminov

Publikováno v: Radiochemistry. 60:140-147

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f7ddba89a9c203d83832b4d2ba6f2708
https://doi.org/10.1134/s1066362218020029

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Synthesis of M(NpO4)2·nH2O (M = Mg, Ca, Sr, Ba) Using Н3ВО3 Solutions and Properties of These Salts

Autor: I. A. Charushnikova, A. A. Bessonov, N. N. Krot

Publikováno v: Radiochemistry. 60:13-17

Two procedures for preparing the compounds M(NpO4)2·nH2O (M = Mg, Ca, Sr, Ba) using boric acid were suggested. In the first procedure, samples of freshly prepared salts M3(NpO5)2·nH2O (M = Ca, Sr, Ba) are treated with excess 0.5 M H3BO3 with vigoro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dd938568f74eb21b57ce6a2e11a34edb
https://doi.org/10.1134/s1066362218010022

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New data on Np(VII) compounds with Co(NH3) 6 3+ . Crystal structure of [Co(NH3)6]3[NpO4(OH)2]3·4H2O and refinement of the structure of [Co(NH3)6][NpO4(OH)2]·2H2O

Autor: N. N. Krot, M. S. Grigor’ev, V. I. Makarenkov, I. A. Charushnikova

Publikováno v: Radiochemistry. 59:124-133

The structure and properties of the needle-like phase of crystalline compounds of the general composition Co(NH3)6NpO5·nH2O, precipitated from alkaline Np(VII) solutions with [Co(NH3)6]3+ ions, were studied. The needle-like phase under the layer of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::da786e10597a18045b947c9b77c563ce
https://doi.org/10.1134/s1066362217020047

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Cation–cation interaction in mixed-element Th(IV)/Np(V) chlorides, [Th(NpO2)6(H2O)8(OH)Cl9]·H2O and [Th(NpO2)6(H2O)9Cl9]Cl

Autor: N. N. Krot, I. A. Charushnikova, A. M. Fedoseev

Publikováno v: Radiochemistry. 58:445-450

The compounds [Th(NpO2)6(H2O)8(OH)Cl9]·H2O (I) and [Th(NpO2)6(H2O)9Cl9]Cl (II), in which mixed-element Th(IV)/Np(V) cation–cation interaction is observed, were isolated in the form of single crystals and studied by X-ray diffraction. The NpO2+··

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4b131175c4c9c532bb50a51c6cb6f985
https://doi.org/10.1134/s1066362216050015

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Synthesis and crystal structure of new Np(VII) compounds, M[NpO4(OH)]·nH2O (M = Ca, Sr, Ba)

Autor: I. A. Charushnikova, V. P. Perminov, N. N. Krot

Publikováno v: Radiochemistry. 57:451-458

Previously unknown Np(VII) compounds with alkaline earth metal cations of the composition M[NpO4OH]·nH2O (M = Ca, Sr, Ba) were prepared in the crystalline form and studied by single crystal X-ray diffraction analysis. The main structural motif in th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::10d81cba64d5ce8dc38e55b21dfea8d8
https://doi.org/10.1134/s106636221505001x

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