Pyrch, Mikaela M.; Williams, Jay M.; Kasperski, Maguire W.; Applegate, Lindsey C.; Forbes, Tori Z. published the artcile< Synthesis and spectroscopic characterization of actinyl(VI) tetrahalide coordination compounds containing 2, 2'-bipyridine>, Computed Properties of 366-18-7, the main research area is uranium neptunium oxo chloro bromo complex preparation crystal structure.
Three new actinide tetrahalide coordination compounds containing 2,2′-bipyridinium (H2bpy) were synthesized by room temperature evaporation and characterized via single crystal x-ray diffraction, Raman spectroscopy, and IR spectroscopy. The solid-state compounds (Np1, U1, and U2) contain the AnO2+2 cation coordinated to four halide (chloride or bromide) atoms to form the anionic tetrahalide mol. unit [AnO2X4]2- (X = Cl, Br) and are charge balanced by the 2,2′-bipyridinium cations that engage in electrostatic interactions with the actinyl complex. Np1 (N2C10H10)[NpO2Cl4] contains 2,2′-bipyridine in the cis conformation where both the nitrogen atoms are directed towards the [NpO2Cl4]2- monomer. Within U1 (N2C10H9)[UO2Cl4], the 2,2′-bipyridine is in a trans conformation, and found in the same orientation in the isomorphous structure U2 (N2C10H9)[UO2Br4]. The compounds were further characterized by vibrational spectroscopy with specific interest in the actinyl cation. Raman spectroscopy provided information on the actinyl sym. stretch (ν1) whereas IR spectroscopy was used to determine the location of the asym. stretch (ν3). Spectral similarities are observed between the two isomorphous structures, but slight variations across structures are associated with bipyridine bands in the various conformations. Addnl. anal. of these vibrational features in U1 and U2 provided information on the actinyl force constants, allowing insight into the relative uranyl bond strength that was compared to similar tetrahalide compounds
Inorganica Chimica Acta published new progress about Actinide complexes Role: PRP (Properties), SPN (Synthetic Preparation), PREP (Preparation). 366-18-7 belongs to class pyridine-derivatives, and the molecular formula is C10H8N2, Computed Properties of 366-18-7.