The mechanism of the molecular CISS effect in chiral nano-junctions.

The chirality induced spin selectivity (CISS) effect has been up to now measured in a wide variety of systems but its exact mechanism is still under debate. Whether the spin polarization occurs at an interface layer or builds up in the helical molecule is yet not clear. Here we have investigated the current transmission through helical polyalanine molecules as a part of a tunnel junction realized with a scanning tunneling microscope.

Ferrocenyl-triazole complexes and their use in heavy metal cation sensing.

Complexes tris((1-ferrocenyl-1-1,2,3-triazol-4-yl)methyl)amine (3), bis((1-ferrocenyl-1-1,2,3-triazol-4-yl)methyl)amine (6), bis((1-ferrocenyl-1-1,2,3-triazol-4-yl)methyl)ether (7), and 1-ferrocenyl-1-1,2,3-triazol-4-yl)methanamine (9) were synthesized using the copper-catalyzed click reaction. Complexes 3, 6, 7, and 9 were characterized using NMR (H and {H}) and IR spectroscopy, elemental analysis, and mass spectrometry. Structures of 3, 7, and 9 in the solid state were determined using single-crystal X-ray diffraction.

Self-Assembled Flexible and Integratable 3D Microtubular Asymmetric Supercapacitors.

The rapid development of microelectronics has equally rapidly increased the demand for miniaturized energy storage devices. On-chip microsupercapacitors (MSCs), as promising power candidates, possess great potential to complement or replace electrolytic capacitors and microbatteries in various applications. However, the areal capacities and energy densities of the planar MSCs are commonly limited by the low voltage window, the thin layer of the electrode materials and complex fabrication processes.