Solvation of UCl62- anionic complex by MeBu3N+, BuMe2IM+, and BuMeIm(+) cations - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Inorganic Chemistry Year : 2008

Solvation of UCl62- anionic complex by MeBu3N+, BuMe2IM+, and BuMeIm(+) cations

Abstract

The complexes [MeBu3N](2)[UCl6] and [BuMe2IM](2)[UCl6] were characterized in the solid state and in solution of [MeBu3N][Tf2N], [BuMe(2)Im][Tf2N], and [BuMeIm][Tf2N] room-temperature ionic liquids using single-crystal XRD, EXAFS, electrochemistry, UV-visible absorption spectroscopy, and NMR. In the solid state and in solution, the existence of hydrogen bonding between the UCl62- complex and the ionic liquid cations was revealed by these techniques. The MeBu3N+ cation interacts with UCl62- via the protons on the alpha-carbon atoms of nitrogen. The protons of the imidazolium ring account for the interaction between the BuMe2IM+ cation and the UCl62- anion. For the BuMeIm(+) cation the major interaction was confirmed between the most acidic proton on C(2) and the chlorides of UCl62-. The experimental results also show that the intensity of the interaction between the UCl62- anion and the cation varies with the ionic liquid cation in the following order: MeBu3N+ approximate to BuMe(2)Im(+) << BuMeIm(+).

Dates and versions

in2p3-00421531 , version 1 (02-10-2009)

Identifiers

Cite

E. Boss, C. den Auwer, C. Berthon, P. Guilbaud, M. S. Grigoriev, et al.. Solvation of UCl62- anionic complex by MeBu3N+, BuMe2IM+, and BuMeIm(+) cations. Inorganic Chemistry, 2008, 47, pp.5746-5755. ⟨10.1021/ic702477z⟩. ⟨in2p3-00421531⟩
27 View
0 Download

Altmetric

Share

Gmail Facebook X LinkedIn More