FREE shipping to on qualifying orders when you spend or more, processed by Ossila BV. All prices ex. VAT. Qualifying orders ship free worldwide! Fast, secure, and backed by the Ossila guarantee. It looks like you are visiting from , click to shop in or change country. Orders to the EU are processed by our EU subsidiary.

It looks like you are using an unsupported browser. You can still place orders by emailing us on info@ossila.com, but you may experience issues browsing our website. Please consider upgrading to a modern browser for better security and an improved browsing experience.

5'-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-[1,1':3',1''-terphenyl]-4,4''-dicarbaldehyde

CAS Number 1033752-94-1

Boronates, Carbaldehyde Monomers, Chemistry Building Blocks, COF Ligands, Materials, Porous Organic Frameworks


Product Code B3651-500mg
Price $200 ex. VAT

Quality assured

Expert support

Volume discounts

Worldwide shipping

Fast and secure


Covalent organic frameworks (COFs) meta-terphenyl ligand

serves as a synthesis intermediate for COFs that are applied in photocatalytic hydrogen reaction and up-conversion luminescence


5'-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-[1,1':3',1''-terphenyl]-4,4''-dicarbaldehyde (CAS number 1033752-94-1), is a meta-terphenyl derivative that features a pinacolborane and two aldehyde groups. The presence of the pinacolborane and aldehyde functional groups allows for stepwise functionalisation of the molecules to enable sophisticated molecular design. A series of novel crystalline 2D COFs is prepared by using 5'-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-[1,1':3',1''-terphenyl]-4,4''-dicarbaldehyde as a C2 linker. The 2D COFs are highly conjugated and exhibit two-photon up-conversion luminescence.

The synthesis of those COFs is versatile as the core in between two 5'-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-[1,1':3',1''-terphenyl]-4,4''-dicarbaldehyde units can be altered to incorporate desired functional molecules through Suzuki coupling reactions. The resulting semiconducting COFs are employed in photocatalytic hydrogen generation with an evolution rate up to 1410 μmol g-1 h-1.

Duo functionality

Duo functionality

Enabling post-functionalisation

High Purity 1033752-94-1

High Purity

>98% Purity

Worldwide shipping for 1033752-94-1

Worldwide shipping

Quick and reliable shipping

MOF and COF ligands

MOF and COF ligands

Aldehyde and Bpin ligand for cross-linked COF networks

General Information

CAS Number 1033752-94-1
Chemical Formula C26H25BO4
Full Name 5'-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-[1,1':3',1''-terphenyl]-4,4''-dicarbaldehyde
Molecular Weight 412.29 g/mol
Synonyms N/A
Classification / Family COFs, Aldehyde ligands, Pinacolborane ligands, Photocatalytic hydrogen reaction, Semiconducting COFs, Up-conversion luminescence

Chemical Structure

5'-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-[1,1':3',1''-terphenyl]-4,4''-dicarbaldehyde chemical structure, CAS 1033752-94-1
5'-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-[1,1':3',1''-terphenyl]-4,4''-dicarbaldehyde chemical structure, CAS 1033752-94-1

Product Details

Purity 98%
Melting Point N/A
Appearance White to off-white powder

MSDS Documentation

5'-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-[1,1':3',1''-terphenyl]-4,4''-dicarbaldehyde5'-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-[1,1':3',1''-terphenyl]-4,4''-dicarbaldehyde MSDS Sheet

Literature and Reviews

  1. Module-patterned polymerization towards crystalline 2D sp2-carbon covalent organic framework semiconductors, E. Jin et al., Angew. Chem. Int. Ed., 61, e202115020 (2022); DOI: 10.1002/anie.202115020.
  2. COF-derived N,P Co-doped carbon as a metal-free catalyst for highly efficient oxygen reduction reaction, C. Yang et al., ChemNanoMat., 5, 957 (2019); DOI: 10.1002/cnma.201900159.
  3. Benzothiadiazole and its derivatives-based sp2 carbon-conjugated covalent organic frameworks for photocatalytic hydrogen generation, C.-H. Han et al., J. Mater. Chem. C, 11, 12000–12006 (2023); DOI: 10.1039/D3TC02305B.
  4. Isomeric route to Schiff-based single-layered covalent organic frameworks, X.-H. Liu et al., Small, 10 (23), 4934–4939 (2014); DOI: 10.1002/smll.201400899.

To the best of our knowledge the information provided here is accurate. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only.

Return to the top