171820-02-3

Basic information

• Product Name: 4,4''-m-Terphenyldicarboxaldehyde
• Synonyms: 4,4''-m-Terphenyldicarboxaldehyde
• CAS NO: 171820-02-3
• Molecular Formula: C20H14O2
• Molecular Weight: 286.32
• Mol File: 171820-02-3.mol
• Article Data: 8

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 4,4''-m-Terphenyldicarboxaldehyde(CAS DataBase Reference)
• NIST Chemistry Reference: 4,4''-m-Terphenyldicarboxaldehyde(171820-02-3)
• EPA Substance Registry System: 4,4''-m-Terphenyldicarboxaldehyde(171820-02-3)

Safety Data

• Hazardous Substances Data: 171820-02-3(Hazardous Substances Data)

Usage

General Description

4,4''-m-Terphenyldicarboxaldehyde is a chemical compound with the molecular formula C22H16O2. It is used in various industries including pharmaceutical, dye, and polymer. 4,4''-m-Terphenyldicarboxaldehyde is a yellow crystalline solid with a molecular weight of 312.36 g/mol. 4,4''-m-Terphenyldicarboxaldehyde is known for its high thermal stability and resistance to chemical reactions, making it a valuable ingredient in manufacturing processes. It is commonly employed as a building block in the synthesis of advanced materials and organic compounds. Additionally, it exhibits fluorescent properties, making it useful in optical and electronic applications.

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Relevant articles and documents

A meta-molecular tailoring strategy towards an efficient violet-blue organic electroluminescent material

In this paper, an efficient violet-blue emitter 4,4′′-bis(1-(4-(tert-butyl)phenyl)-1H-phenanthro[9,10-d]imidazol-2-yl)-1,1′:3′,1′′-terphenyl (m-BBTPI) was designed and synthesized by linking two phenanthroimidazole units via the meta position of a freely rotatable phenyl bridge. The present design provides a suitable level of conjugation between the two phenanthroimidazole units such that fluorescence is strengthened over the single unit while a violet-blue emission can be maintained by limiting the amount of redshift. The new emitter m-BBTPI is also found to have good thermal stability, strong violet-blue emission and bipolar charge transporting properties. An electroluminescent device using m-BBTPI as a non-doped emission layer shows a low turn-on voltage (3.2 V), good colour purity (0.16, 0.06) as well as high current and power efficiencies (1.99 cd A-1, 1.81 lm W-1). These performance parameters are comparable to the state-of-the-art non-doped violet-blue OLEDs. This journal is

The use of McMurry coupling for the synthesis of indolophanes and cis-stilbenophanes

Treatment of 2equiv of indole-3-aldehyde with o, m, p-xylyl, 2,5-dimethoxy-p-xylyl dibromides and 4,4′-bis(bromomethyl)-1,1′- biphenyl gave the bisalkylated products, which underwent McMurry coupling with low valent titanium to give indolophanes. Various cis-stilbenophanes with m-terphenyl building blocks were also synthesized by application of the McMurry coupling technique.

Toward Electrochromic Metallopolymers: Synthesis and Properties of Polyazomethines Based on Complexes of Transition-Metal Ions

The tridentate ligand L and its complexes with transition-metal ions have been prepared and characterized. The polycondensation reactions of transition-metal complexes with different dialdehydes led to the formation of transition-metal-complex-based polyazomethines, which have been obtained by on-substrate polymerization, and their electrochemical and electrochromic performance have been investigated. The most interesting properties are exhibited by polymers of Fe(II) and Cu(II) ions obtained by the reaction of the appropriate complexes with a triphenylamine-based dialdehyde. Fe(II) polymer P1 undergoes a reversible oxidation/reduction process and a color change from orange to gray due to the oxidation of Fe(II) to Fe(III) ions concomitant with the oxidation of the triphenylamine group. Its electrochromic properties such as long-term stability, switching times, and coloration efficiencies have been investigated, providing evidence of the utility of the on-substrate polycondensation reaction in the formation of thin films of electrochromic metallopolymers.

Multi-layered, covalently supported ionic liquid phase (mlc-SILP) as highly cross-linked support for recyclable palladium catalysts for the suzuki reaction in aqueous medium

The reaction between an excess of 1,4-bis(3-vinylimidazolium-1-yl) bromide and a mercaptopropyl-modified amorphous silica gel or ordered mesoporous silica SBA-15 in the presence of azobisisobutyronitrile (AIBN) afforded new materials, which have a high loading of imidazolium moieties. These materials, which contain a highly cross-linked polymeric network, have been denoted as multi-layered, covalently supported ionic liquid phase (mlc-SILP) and have been used as support for palladium catalysts containing a high loading of the metal (10 wt%). Such materials were characterized by several techniques ( 13C magic angle spinning nuclear magnetic resonance, the Brunauer-Emmett-Teller technique, small-angle X-ray scattering, X-ray diffraction, X-ray photoelectron spectroscopy, and transmission electron microscopy). The presence of a homogeneous distribution of palladium nanoparticles was established. The palladium catalysts displayed good activity allowing the synthesis of several biphenyl compounds in high yields working with only 0.1 mol% of palladium loading at mild temperatures (room temperature or 50 °C) in ethanol/water. Reactions carried out on a 10-mmol scale required only 10 mg of catalysts. Good recyclability was observed. Copyright