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4,4',4'',4'''-(9H-Carbazole-1,3,6,8-tetrayl)tetrabenzoic acid

CAS Number 2097131-99-0

Chemistry Building Blocks, Materials, MOF Ligands, Porous Organic Frameworks


Product Code B3071-500mg
Price $188 ex. VAT

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Metal Organic Frameworks (MOFs) Carbazolyl Ligand

A star-shaped ligand linker for MOFs in applications of methane adsorption


4,4',4'',4'''-(9H-Carbazole-1,3,6,8-tetrayl)tetrabenzoic acid (H4CzTB) has a cabzolyl core with four 4-benzoic acids side arms around the carbazole ring at 1,3,6,8-poisitions.

Mesoporous MOF, PCN-668, Fe3O cluster using 4,4',4'',4'''-(9H-carbazole-1,3,6,8-tetrayl)tetrabenzoic acid as ligand linker, shows both nanoscale cage-like building units and one-dimensional (1D) channels with neighbouring cages being mutual diastereomers. Acid stability of PCN-668 can be improved via post-synthetic metal exchange to chromium. PCN-668-Cr exhibits very high stability in both acidic and basic aqueous solutions (pH = 1–11). Additionally, the mesoporous MOF showed a high total gravimetric methane uptake of ∼ 500 cm3 g-1 at 100 bar.

General Information

CAS Number 2097131-99-0
Chemical Formula C40H25O8
Full Name 4,4',4'',4'''-(9H-Carbazole-1,3,6,8-tetrayl)tetrabenzoic acid
Molecular Weight 647.63 g/mol
Synonyms H4CzTB, H4BDC, 4-[1,6,8-tris(4-carboxyphenyl)-9H-carbazol-3-yl]-Benzoic acid
Classification / Family Carbazoles, MOF ligands, 

Chemical Structure

2097131-99-0 - 4,4',4'',4'''-(9H-Carbazole-1,3,6,8-tetrayl)tetrabenzoic acid chemical structure
4,4',4'',4'''-(9H-Carbazole-1,3,6,8-tetrayl)tetrabenzoic acid (H4CzTB) Chemical Structure, 2097131-99-0

Product Details

Purity >97%
Melting Point  n.a.
Appearance Pale yellow powder/crystal

MSDS Documentation

2097131-99-0 - 4,4',4'',4'''-(9H-carbazole-1,3,6,8-tetrayl)tetrabenzoic acid4,4',4'',4'''-(9H-Carbazole-1,3,6,8-tetrayl)tetrabenzoic acid MSDS Sheet

Literature and Reviews

  1. Tuning the Structure of Fe-Tetracarboxylate Frameworks Through Linker-Symmetry Reduction, J. Pang et al., CCS Chem., 3 (2), 1701-1709 (2020); DOI: 10.31635/ccschem.020.202000348.
  2. Visual pH Sensors: From a Chemical Perspective to New Bioengineered Materials, L. Costanzo et al., Molecules, 26, 2952 (2021); DOI: 10.3390/molecules26102952.
  3. Stable metal–organic frameworks for PEC water splitting, Y. Gong et al., Flatchem, 27, 100240 (2021); DOI: 10.1016/j.flatc.2021.100240.

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.

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