CRYSTAL STRUCTURE OF bis[1-{(3,5-DIMETHYL-1
H-PYRAZOL-1-YL)METHYL}-3,5-DIMETHYL-1
H-PYRAZOL-2-IUM] HEXACHLOROURANATE(IV): [H
2C(3,5-Me
2pz)(3,5-Me
2pzH)]
2[UCl
6]
J. M. Carretas1, J. Cui1, A. Cruz1, I. C. Santos1,2, J. Marçalo1
1Centro de Ciências e Tecnologias Nucleares, Lisboa, Bobadela LRS, Portugal
jmarcalo@ctn.ist.utl.pt
2Centro de Química Estrutural, Lisboa, Portugal
Ключевые слова: uranium, bis(3,5-dimethylpyrazol-1-yl)methane, pyrazolium, crystal structure, short contacts
Страницы: 189-192
Подраздел: КРАТКИЕ СООБЩЕНИЯ
Аннотация
The X-ray diffraction study of a single crystal with the composition [H 2C(3,5-Me 2pz)(3,5-Me 2pzH)] 2[UCl 6] (1) is performed. This compound is the product of an attempted synthesis of a bis(pyrazolyl)methane complex of uranium(IV) obtained by the reaction of UCl 4 with bis(3,5-dimethylpyrazol-1-yl)methane in THF. 1 crystallizes in the space group P-1 of the triclinic system: a = 9.6616(2) Å, b = 9.6946(2) Å, c = 10.7314(2) Å, α = 107.6210(10)°, β = 115.5600(10)°, γ = 99.6710(10)°, V = 810.45(3) Å 3, Z = 1, d calc = 1.765 g/cm 3, μ = 5.528 mm -1, R 1 = 0.0249. The structural unit consists of two separated [H 2C(3,5-Me 2pz)(3,5-Me 2pzH)] + cations and a UCl 6 2- anion. In the solid state structure of 1 several short intermolecular N-H⋯N and C-H⋯Cl contacts are identified suggesting the presence of hydrogen bonds.
DOI: 10.1134/S0022476615010254 |
