The molecular arrangement and topography of ultrathin ionic liquids (ILs) on a silicon wafer have been studied by AFM and ARXPS, respectively. The results indicate a transition from an "anion-cation" layered (smooth) structure to a "drop-on-layer"/"sponge" (rough) structure when the film gets thicker, which can be attributed to the competition between solid/IL attraction and anion-cation cohesion.

The title compound, (C(11)H(18)N(4))[CdBr(4)], was prepared by an anion exchange. The dihedral angle between the two planar imidazolium rings in the cation is 74.4 (4)°. The crystal packing is stabilized by weak inter-molecular C-H⋯Br hydrogen bonds between the cation and the tetrahedral anion, building up a three-dimensionnal network.

The effect of an external magnetic field on the intensity of electrogenerated chemiluminescence (ecl) was determined for nine systems involving anthracene, 9,lO-diphenylanthracene (DPA), rubrene, 1,3,6,%tetraphenylpyrene (TPP), and fluoranthene as emitting species in N,N-dimethylformamide (DMF) solutions. Enhancements in emission intensity up to 27% with increasing field strength were noted for...

We report on 18O tracer diffusion experiments and model calculations for the study of cation vacancy migration in oxide crystals. The model takes advantage of the electrostatic coupling forces between anion and cation defects that allow the evolution of the cation vacancy profile to be observed by anion tracer experiments. Applied to SrTiO3, the ambipolar diffusion of strontium vacancies with H...

In the cation of the title compound, C16H26NO2 (+)·C6HCl2O4 (-)·C4H8O2, the 1-hy-droxy-cyclo-hexyl ring adopts a slightly distorted chair conformation. The dihedral angle between the mean planes of the 1-hy-droxy-cyclo-hexyl and 4-hy-droxy-phenyl rings is 84.0 (8)°. In the anion, the hydroxyl H atom is twisted slightly out of the ring plane with a C-C-O-H torsion angle of -171.9°. Disorder was ...

Ionic liquids (ILs) containing the bis(fluorosulfonyl)imide anion, FSI, have been investigated as electrolytes for metal-air batteries. Full chemical reversibility is found reduction of oxygen to superoxide at 60 °C under short time scale conditions cyclic voltammetry a glassy carbon electrode when IL contains small chain length triisobutyl(methyl)phosphonium rather than pyrrolidinium cation. D...

Recent advances in stabilizing simple FAPbI 3 perovskite composition have challenged the use of complex multiple cation/anion compositions for fabrication highly efficient and stable solar cells.

A scandium hydride supported by a (NNNN)-type macrocycle consists of a trinuclear cation and a trinuclear anion. The anion shows significantly higher reactivity.

Enantiopure semiconducting crystalline radical cation salts of TM-BEDT-TTF with the Lindqvist type molybdenum based dianion, prepared by electrocrystallization, show unusual donor/anion ratio, charge distribution and helical packing donors.

The hydrothermal synthesis of two new inorganic-organic hybrid materials in which PDA (PDA = 1,10-phenanthroline-2,9-dicarboxylate) is connected to a well-defined Keggin-type polyoxometalate anion (POM) and a Ln(III) cation (POM = [SiW12O40]4−; Ln = Eu3+ (1), Er3+ (2)), are reported. These hybrids are characterized by elemental analyses, IR spectra and single-crystal X-ray diffraction. Single-c...