Crystal structure of N (1)-phenyl-N (4)-[(E)-(pyren-1-yl)methyl-idene]benzene-1,4-di-amine

Crystal structure of (E)-N1-[(anthracen-9-yl)methyl-idene]-N4-phenyl-benzene-1,4-di-amine

The title compound, C27H20N2, a Schiff base synthesized via a condensation reaction between anthracene-9-carbaldehyde and N-phenyl-p-phenyl-enedi-amine, crystallizes with three independent mol-ecules in the asymmetric unit. The three mol-ecules have slightly varying overall conformations, all having trans conformations with respect to the C=N bond. In the crystal, the packing features N-H⋯N hydrogen bonds, which connect mol-ecules into chains extending along the c-axis direction, inter-linked by C-H⋯π inter-actions (minimum H⋯Cg = 2.65 Å) into sheets lying parallel to (001).

Long-lived photoluminescence and high quantum yield of copper(ii) complexes with novel nanostructures

Four novel nano bipy-based copper(ii) complexes with high luminescence intensity, long-lived photoluminescence and quantum yield.