The title compound, [Rh2Br2(C8H12)2(C17H32N4)], was obtained by the reaction of 3,3'-(propane-1,3-di-yl)bis-(1-isopropyl-3,4,5,6-tetra-hydro-pyrimidin-1-ium) bromide and [{Rh(cod)Cl}2] (cod is cyclo-octa-1,5-diene) in tetra-hydro-furan. The two Rh(I) atoms each have a distorted square-planar coordination environment, defined by a bidentate cod ligand, a bromide anion and one C atom of the bridg...

An extraction chromatography (XC) material containing N,N,N’,N’-tetra-n-butyl diglycolamide (TBDGA) and 1-butyl-3-methylimidazolium bis(trifluoromethanesulphonyl) imide (C4mim?NTf2), a room temperature ionic liquid, was used for the uptake of tetravalent actinide ions Th(IV), Np(IV), Pu(IV) from nitric acid feed solutions. The metal followed trend: Th(IV) < Np(IV) Pu(IV), which is same as that ...

X-ray absorption spectroscopy (XAS) has been used to unveil the bromide ion local coordination structure in 1-alkyl-3-methylimidazolium bromide [C(n)mim]Br ionic liquids (ILs) with different alkyl chains. The XAS spectrum of 1-ethyl-3-methylimidazolium bromide has been found to be different from those of the other members of the series, from the butyl to the decyl derivatives, that have all ide...

In the title mol-ecule, C(17)H(23)N(2)O(2)P, the P atom has a distorted tetra-hedral environment. The P-N bond to the tolyl-amido fragment is 1.642 (4) Å while that to the butyl-amido fragment is 1.629 (3) Å. The dihedral angle between the two benzene rings is 82.3 (2)°. In the crystal, adjacent mol-ecules are linked via weak N-H⋯(O)P and N-H⋯N hydrogen-bonding inter-actions into an extended ch...

In the title monohydrated salt, (C(6)H(14)N(2))[CuBr(4)]·H(2)O, the copper(II) ion is coordinated by the four bromide ions in a flattened tetra-hedral geometry. In the crystal, the cations, anions and water mol-ecules inter-act via N-H⋯O, O-H⋯Br and N-H⋯Br hydrogen bonds, forming chains parallel to the b axis. The chains are further linked by O-H⋯Br hydrogen bonds into layers parallel to the bc...

The reaction of 1-bromo-methyl-1,4-diazo-niabicyclo-[2.2.2]octane bromide, zinc chloride and hydro-chloric acid in water yields the title compound, (C(7)H(15)BrN(2))[ZnCl(4)]. In the crystal, the components are linked by N-H⋯Cl hydrogen bonds. The Zn(II) atom has an approximately tetra-hedral coordination geometry.

We report a new lattice structure of the ionic clathrate hydrate of tetra-n-butylammonium bromide induced by guest CO2 molecules, which is found to provide high CO2 storage capacity. The structure was characterized by a set of methods, including single crystal X-ray diffraction, NMR, and MD simulations.