Crystal structure of catena-poly[[methanoldioxidouranium(VI)]-µ-2-[5-(2-oxidophen-yl)-1H-1,2,4-triazol-3-yl]acetato-κ2 O:O'].
Acta Crystallogr E Crystallogr Commun
; 80(Pt 8): 852-856, 2024 Aug 01.
Article
em En
| MEDLINE
| ID: mdl-39108784
ABSTRACT
In the title complex, [U(C10H7N3O3)O2(CH3OH)] n , the UVI cation has a typical penta-gonal-bipyramidal environment with the equatorial plane defined by one N and two O atoms of one doubly deprotonated 2-[5-(2-hy-droxy-phen-yl)-1H-1,2,4-triazol-3-yl]acetic acid ligand, a carboxyl-ate O atom of the symmetry-related ligand and the O atom of the methanol mol-ecule [U-N/Oeq 2.256â
(4)-2.504â
(5)â
Å]. The axial positions are occupied by two oxide O atoms. The equatorial atoms are almost coplanar, with the largest deviation from the mean plane being 0.121â
Å for one of the O atoms. The benzene and triazole rings of the tetra-dentate chelating-bridging ligand are twisted by approximately 21.6â
(2)° with respect to each other. The carboxyl-ate group of the ligand bridges two uranyl cations, forming a neutral zigzag chain reinforced by a strong O-Hâ¯O hydrogen bond. In the crystal, adjacent chains are linked into two-dimensional sheets parallel to the ac plane by C/N-Hâ¯N/O hydrogen bonding and π-π inter-actions. Further weak C-Hâ¯O contacts consolidate the three-dimensional supra-molecular architecture. In the solid state, the compound shows a broad medium intensity LMCT transition centred around 463â
nm, which is responsible for its red colour.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Acta Crystallogr E Crystallogr Commun
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
Ucrânia