By using an asymmetrical 2-carboxyphenylphosphonate ligand (2-cpp(3-)), a chiral layered vanadium compound (VO)(3)(2-cpp)(2)(H(2)O)(6)·H(2)O (1) is isolated. The bulk sample is enantioenriched due to symmetry breaking on crystallization. Partial release of the coordination water molecules upon heating leads to a single-crystal-to-single-crystal transformation to compound [(VO)(3)(2-cpp)(2)(H(2)...

Transformation of deuterated ethanol from the plastic crystal phase into the monoclinic one is investigated by means of a singular setup combining simultaneously dielectric spectroscopy with neutron diffraction. We postulate that a dynamic transition from plastic crystal to supercooled liquid-like configuration through a deep reorganization of the hydrogen-bonding network must take place as a p...

The concept of symmetry point groups for regular polyhedra can be generalized to special permutation groups to describe negative curvature polygonal networks that can be expanded to possible carbon and boron nitride structures through leapfrog transformations, which triple the number of vertices. Thus a D surface with 24 heptagons and 56 hexagons in the unit cell can be generated by a leapfrog ...

Changes in the structure of phyllosilicate microparticles submicron fractions polymineral clay with an average size 290 nm, as well changes positions impurity ions transition metals crystal lattice, were studied by X-ray diffraction analysis, Fourier transform infrared spectroscopy, and high-resolution electron paramagnetic resonance spectroscopy. The main composition included clinochlore, mont...