The complete molecule of the title compound, C(18)H(14)N(4), is generated by the application of a centre of inversion. The dihedral angle between the central benzene ring and the pyridine ring is 31.88 (7)°. In the crystal, mol-ecules are stacked in columns along the c axis and several inter-molecular π-π inter-actions are present between the six-membered rings, the shortest centroid-centroid d...

For a library of single-crystal merocyanines charge percolation pathways and mobilities were computed, matching the experimental data. Hole transport is maximized when molecules pack in slipped not centrosymmetric pairs, arranged 2D architectures.

In the title compound C(27)H(19)ClO(6), the coumarin ring system is not exactly planar, with a dihedral angle of 4.12 (7)° between its benzene and lactone rings. The cis-fused pyran rings adopt half-chair conformations. The carbometh-oxy and chloro-phenyl groups are in a trans configuration. The crystal packing is stabilized by inter-molecular C-H⋯O interactions, which produce a centrosymmetric...

The title compound, [Cu(C(9)H(9)BrNO(2))(2)], is a centrosymmetric mononuclear copper(II) complex. The Cu atom is four-coordinated in a trans-CuN(2)O(2) square-planar geometry by two phenolate O and two oxime N atoms from two symmetry-related N,O-bidentate (E)-4-bromo-2-(ethoxy-imino-meth-yl)phenolate oxime-type ligands. An inter-esting feature of the crystal structure is the centrosymmetric in...

A new application of second harmonic generation to selectively probe the surface of microscopic size centrosymmetric structures in centrosymmetric bulk media has been applied to polymer beads in aqueous solution and to oil droplets in an oil/water emulsion. The free energies of adsorption and the surface densities of organic molecules adsorbed from aqueous solution to 1 μm polystyrene bead surf...

Abstract The simple ABO 3 and A-site-ordered AA? B 4 O 12 perovskites represent two types of classical perovskite functional materials. There are well-known with ferroelectric properties, while there is still no report ferroelectricity due to symmetry breaking transition in quadruple perovskites. Here we the high pressure synthesis an PbHg Ti , only known that transforms from high-temperature c...

The successful realization of skyrmion-based spintronic devices depends on the easy manipulation underlying magnetic interactions in skyrmion-hosting materials. Although mechanism skyrmion formation non-centrosymmetric magnets is comprehensively established, stabilization process different skyrmion-like textures centrosymmetric needs further investigation. Here, we utilize Lorentz transmission ...