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Product Code B3691-250mg
Price $125 ex. VAT

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Covalent Organic Frameworks (COFs) Tetraphenylsilane Ligand

A tectonic bridging ligand linker for COFs in applications of effective iodine and Hg2+ adsorption and high selective adsorption of carbon dioxide.


Tetrakis(4-formylphenyl)silane (TFPSi) is a tectonic molecule with four 4-formylphenyl groups joined by a silicon centre. It has been predominantly used in development of metal-organic frameworks (MOFs) and coordination polymers (CPs).

Prepared by the bottom-up approach from TFPSi as one of the building blocks, 3D thioether-based COF JUC-570 demonstrated fast and high Hg2+ uptakes of 972 mg g−1 at pH = 5. It is believed that the isopropyl groups around the imine bonds greatly improved its chemical stability by effectively maintaining the pore shape and size, endowing a high Hg2+ adsorption capacity (619 mg g−1) and excellent cycle performance even at pH = 1.

MALP-2, also prepared from TFPSi, shows a largest adsorbed amount of 18.6 wt % CO2 (273 K, 1 bar), and high adsorption selectivity of COover N2 (22.5) and over CH4 (6.3). MALP-2 also demonstrated an excellent iodine vapor adsorption capacity (218.5 wt %) and remarkable solution iodine adsorption ability. The high chemical and physical stability, and excellent adsorption performances toward CO2, toxic organic vapor, and iodine show that MALP COFs are promising candidates for environmental protection.

MOF and COF ligands

MOF and COF ligands

Aldehyde ligand for cross-linked COF networks

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High purity 1055999-34-2

High purity

>97% High purity

Facile reactions

Facile reactions

Aldehyde possesses excellent reactivity

General Information

CAS Number 1055999-34-2
Chemical Formula C28H20O4Si
Full Name Tetrakis(4-formylphenyl)silane
Molecular Weight 448.55 g/mol
Synonyms TFPSi, TFPS, 4,4',4'',4'''-Silanetetrayltetrabenzaldehyde
Classification / Family Tetraphenylsilane, COF ligands

Chemical Structure

1055999-34-2 - tetrakis(4-formylphenyl)silane chemical structure
Tetrakis(4-formylphenyl)silane (TFPSi) Chemical Structure, 1055999-34-2

Product Details

Purity >97%
Melting Point T= 212 – 215 °C. TGA = 418 °C.
Appearance White powder/crystals

MSDS Documentation

1055999-34-2 - tetrakis(4-formylphenyl)silaneTetrakis(4-formylphenyl)silane MSDS Sheet

Literature and Reviews

  1. A facile one-pot preparation of porphyrin-based microporous organic polymers for adsorption of carbon dioxide, ethane, and methane, Y. Tan et al., New J. Chem., 46, 19401-19406 (2022); DOI: 10.1039/D2NJ03749A.
  2. Fabrication of Microporous Aminal-Linked Polymers with Tunable Porosity toward Highly Efficient Adsorption of CO2, H2, Organic Vapor, and Volatile Iodine, M. Rong et al., Ind. Eng. Chem. Res., 58 (37), 17369–17379 (2019); DOI: 10.1021/acs.iecr.9b03126.
  3. Facile one-pot synthesis of porphyrin based porous polymer networks (PPNs) as biomimetic catalysts, L. Zou et al., Chem. Commun., 51, 4005-4008 (2015); DOI: 10.1039/C4CC09479D.
  4. Diverse crystal size effects in covalent organic frameworks, T. Ma et al., Nat. Commun., 11, 6128 (2020); DOI: 10.1038/s41467-020-19858-8.
  5. Functional Regulation and Stability Engineering of Three-Dimensional Covalent Organic Frameworks, X. Guan et al., Acc. Chem. Res., 55 (14), 1912–1927 (2022); DOI: 10.1021/acs.accounts.2c00200.
  6. 3D Thioether-Based Covalent Organic Frameworks for Selective and Efficient Mercury Removal, Y. Zhang et al., Small, 17 (22); 2006112 (2021); DOI: 10.1002/smll.202006112.

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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