1,1':3',1''-Terphenyl-4,4''-dicarbaldehyde (CAS 171820-02-3) is a meta-terphenyl building block carrying an aldehyde group at each end. Its V-shaped geometry and two reactive aldehyde sites make it a useful linker for constructing cross-linked covalent organic frameworks (COFs) by condensation with amine or ketone derivatives. It is supplied by Ossila as a pale yellow powder with a purity above 97%.
The molecule can be modified further before framework assembly. Pd-catalysed direct arylation with 9-bromoanthracene gives an anthracene-terphenyldicarbaldehyde, which has been used to build a one-dimensional COF for detecting chromium (III).
In optoelectronics, a one-pot reaction converts this dialdehyde into a violet-blue phenanthroimidazole emitter. The meta linkage of the terphenyl core limits π-conjugation, which leads to efficient violet-blue emission; an OLED based on this emitter reached a current efficiency of 1.99 cd/A and a power efficiency of 1.81 lm/W.
- Synthesis of cross-linked covalent organic frameworks through reaction with amine or ketone derivatives.
- Preparation of one-dimensional COFs for fluorescent detection of chromium (III).
- Research on one-dimensional COF films for near-infrared electrochromism.
- One-pot synthesis of violet-blue emitters for organic light-emitting diodes.
- Use as an aldehyde ligand for cross-linked MOF and COF networks.
| Brand | Ossila |
|---|---|
| CAS number | 171820-02-3 |
| Molecular formula | C20H14O2 |
| Purity | > 97% |
| Category | — |
| Pack sizes | 500 mg, 1 g |
| Physical form | Pale yellow powder |
| Storage | — |
- Product code: B4051
- Full Name: 1,1':3',1''-Terphenyl-4,4''-dicarbaldehyde
- Molecular Weight: 286.33 g/mol
- Synonyms: 3'-(4-Formylphenyl)-[1,1'-biphenyl]-4-carbaldehyde, 4,4''-m-Terphenyldicarboxaldehyde, 4-[3-(4-Formylphenyl)phenyl]benzaldehyde
- Classification: COFs, Carbaldehyde building blocks, Porous organic materials
—
—