Color-Tuned Electroluminescence from Columnar Liquid Crystalline Alkyl Arenecarboxylates

Novel derivatives of 1,6,7,12-tetrachloroperylene-3,4,9,10-tetracarboxylic acid: synthesis, electrochemical and optical properties

“…1,2,3 Over the course of time, a number of important synthetic routes towards perylene-3,4,9,10-tetracarboxylic acid derivatives have been developed. Some representative classes of compounds that have been synthesized are presented in Figure 1, such as perylene-3,4,9,10-tetracarboxy tetraesters (A1-A3), 4,5,6,7 perylene-3,4,9,10-tetracarboxy monoimide diesters (B1-B2), 5,8,9 perylene-3,4,9,10-tetracarboxy bisimides (C1-C3), 1,3 and perylene-3,4,9,10-tetracarboxy bisbenzimidazoles (D1-D3). 8,10 In addition, methods to obtain perylene-3,4-dicarboxylic acid derivatives have also been reported.…”

“…34 As compared to other organic dyes, perylene dyes provide a wealth of opportunities for the tuning of their properties via structural modification. These structural modifications can be achieved at three different positions around the perylene core; namely, the "peri" (3,4,9,10) positions, the "bay" (1, 6,7,12) positions, and the "ortho" (2,5,8,11) positions (Figure 1). Among these, the functionalization of peri and bay positions have been the preferred choices so far.…”

High-resolution dielectric study reveals pore-size-dependent orientational order of a discotic liquid crystal confined in tubular nanopores

“…It consists of a polyaromatic core surrounded by flexible aliphatic chains [52]. In the bulk state Py4CEH forms a hexagonal columnar discotic (CD) phase (see Fig.…”

Facile synthesis of 4-nitro-N-substituted-1,8-naphthalimide derivatives using ultrasound in aqueous media

“…Because of their strong fluorescence and good photostability, 1,8-naphthalimide derivatives have found applications in a number of areas such as in the coloration of polymer (1, 2) as laser-active media (3), fluorescent markers in biology (4), anticancer agents (5), lightemitting diodes (6,7), photoinduced electron-transfer sensors (8,9), fluorescence switchers (10,11), electroluminescent materials (12,13), liquid-crystal displays (14,15), and ion probes (16).…”