Based on the molecular structure of novel fluorenone derivative named FO52, a series new molecules have been designed by extending its π-conjugated bridge and introducing electron donor or acceptor substituents. The electronic transition second-order non-linear optical response properties these derivatives were theoretically studied in detail using density functional theory computational method...

Direct dye with a high affinity for cellulose substrate was utilized as a cellulose anchor to promote retention of paper strengthening additives under various conditions associated with the wet end of a paper machine. Direct Red 28 (DR) was covalently linked to anionic polyacrylamide (APAM) via a condensation reaction using water-soluble carbodiimide. The DR-conjugated A-PAM (DR-A-PAM) demonstr...

Efficient violet-blue-emitting molecules are especially useful for applications in full-color displays, solid-state lighting, as well as in two-photon absorption (TPA) excited frequency-upconverted violet-blue lasing. However, the reported violet-blue-emitting molecules generally possess small TPA cross sections. In this work, new 1,8-diazapyrenes derivatives 3 with blue two-photon-excited fluo...

The synthesis and properties of linear π-conjugated systems incorporating phosphole rings are described. Their supramolecular organization in the solid state can be controlled either by chemical modifications or coordination to transition metals of the phosphorus atom. Furthermore, chemical transformations of the phosphole ring allow organizing these P-chromophores in 3D assemblies exhibiting σ...

Graph signal processing deals with signals whose domain, defined by a graph, is irregular. The total π-electron energy or simply the π-electronic energy, as calculated within Hückel tight-binding molecular orbital approximation, one of important quantum-theoretical characteristic conjugated molecules. In this paper, we propose an efficient computer-assisted computational method to determine eig...

A new π-conjugated molecule incorporates imine linkage and demonstrates p-type transport properties pronounced photo-conductive photo-gating effects.

Abstract Ultralong organic phosphorescence (UOP) crystals have attracted increased attention due to the distinct photophysical property of a long-lived lifetime. However, are generally brittle, leading serious problem for their application in flexible technology. Herein, we report three types elastic (EOCs) with ultralong via introducing halogen atoms (Cl, Br, I) into π-conjugated phosphorescen...