Metal–free C5N2 doped with boron atom as an efficient electrocatalyst for nitrogen reduction reaction

Electrochemical nitrogen reduction reactions (NRR) under ambient conditions is a promising and attractive way for ammonia (NH3) synthesis. It is significant to develop efficient and low–cost electrocatalysts for nitrogen reduction....

1,12-Diiodo-Ortho-Carborane: A Classic Textbook Example of the Dihalogen Bond

The crystal structure of 1,12-diiodo-ortho-carborane 1,12-I2-1,2-C2B10H10 was determined by single crystal X-ray diffraction. In contrary to earlier studied 1,12-dibromo analogue 1,12-Br2-1,2- C2B10H10, its crystal packing is governed by the presence of the intermolecular I···I dihalogen bonds between the iodine atom attached to the carbon atom (acceptor) and the iodine atom attached to the antipodal boron atom (donor) of the carborane cage. The observed dihalogen bonds belong to the II type and are characterized by classical parameters: shortened I⋯I distance of 3.5687(9) Å, C–I⋯I angle of 172.61(11)° and B–I⋯I angle of 92.98(12)°.

Crystal structure and fluorescence study of (μ-N-[(3,5-dimethyl-1H-pyrrol-2-yl)methylidene]-N-{4-[(3,5-dimethyl-1H-pyrrol-2-yl)methylideneazaniumyl]phenyl}azanium)bis[difluoridoboron(IV)]

The title molecule, C20H20B2F4N4, assumes a planar conformation with all atoms apart from the F atoms lying on the symmetry plane. Each boron atom is four-coordinated by two fluorine atoms, a pyrrole N atom and an imine N atom. Both imine CH=N groups adopt a trans conformation. In the crystal, the molecules self-assemble into a pillar structure through C—H...F hydrogen bonds and π–π interactions. The UV–vis spectrum and fluorescence spectra of the title compound are also reported.

The role of sp-hybridized boron atom in highly-efficient photocatalytic N2 reduction activity of boron-doped triphenylene-graphdiyne

Photocatalytic nitrogen (N2) reduction with H2O under ambient conditions is a fascinating approach to realize clean ammonia (NH3) production. However, the high overpotential of N2 activation and low solar-to-chemical conversion...