Synthesis and structure of crystals of UO2(C2H5COO)2·1.5L (L = methylurea or N,N’-dimethylurea)

Сережкин, В. Н.; Григорьев, М. С.; Abdul’myanov, A. R.; Сережкина, Л. Б.

doi:10.1134/s1066362216020028

Cited by 5 publications

(2 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the example of uranium(VI) compounds, it was found that the [UO 2 (prop) 3 ] − acidic complexes are most often implemented in crystal structures, whose charge is compensated for by singly or doubly charged cations R. R can stand for K + or NH 4 + , 6 Tl + , Rb + , or Cs + , 7 Mg 2+ , 4 Ca 2+ , 8 Sr 2+ or Ba 2+ , 5 and even uranyl-containing cationic complexes [UO 2 (prop)-(L) 3 ] + , where L is methylurea or N,N′-dimethylurea. 9 The purpose of this work was to study the structure of the newly obtained crystals {N(C 2 H 5 ) 4 }[AnO 2 (C 2 H 4 BrCOO) 3 ] [An = U (I), Np (II), or Pu (III)], as well as of the 3bromopropionic acid (C 2 H 4 BrCOOH, IV), which was one of the initial reagents in the synthesis of I−III. The interest in actinide(VI) bromopropionate complexes is due to several reasons.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Within each of the three mentioned series of compounds (An = U, Np, or Pu), they turned out to be isostructural regardless of the nature of An. For the example of uranium(VI) compounds, it was found that the [UO 2 (prop) 3 ] − acidic complexes are most often implemented in crystal structures, whose charge is compensated for by singly or doubly charged cations R. R can stand for K + or NH 4 + , Tl + , Rb + , or Cs + , Mg 2+ , Ca 2+ , Sr 2+ or Ba 2+ , and even uranyl-containing cationic complexes [UO 2 (prop)(L) 3 ] + , where L is methylurea or N , N ′-dimethylurea …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Peculiarities of the Supramolecular Assembly of Tetraethylammonium and 3-Bromopropionate Ions in Uranyl, Neptunyl, and Plutonyl Coordination Compounds

et al. 2019

View full text Add to dashboard Cite

Synthesis and X-ray diffraction studies of {N(C 2 H 5 ) 4 }[AnO 2 (C 2 H 4 BrCOO) 3 ] [An = U (I), Np (II), or Pu (III)] and C 2 H 4 BrCOOH (IV), where C 2 H 4 BrCOO − is an anion of the 3-bromopropionic acid, are reported. The isostructural coordination compounds I−III contain mononuclear anionic complexes [AnO 2 (C 2 H 4 BrCOO) 3 ] − belonging to the crystal chemical group AB 01 3 (A = AnO 2 2+ ; B 01 = C 2 H 4 BrCOO − ). In the crystal structure of IV, the C 2 H 4 BrCOOH molecules are hydrogen bonded into centrosymmetric dimers R 2 2 (8). Using the method of molecular Voronoi−Dirichlet (VD) polyhedra, the features of intermolecular interactions in crystals of I−IV are discussed in support of the results of IR and UV spectroscopy experiments. Actinide contraction in I−III manifests itself in a regular reduction of the average length of the axial and equatorial bonds in hexagonal bipyramids AnO 8 , in an increase in ν as (AnO 2 2+ ) wavenumbers, and in a simultaneous decrease in the volume and sphericity degree of VD polyhedra of An atoms in the U−Np−Pu series. The title compounds represent an interesting architecture, where 3-bromopropionate ions penetrate through the square 4 4 net of tetraethylammonium ions and thus bind adjacent nets via the "locking effect".

show abstract

Section: ■ Introductionmentioning

confidence: 99%