1,3,5-Tris(4-ethynylphenyl)benzene

CAS Number 71866-86-9

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

1,3,5-Tris(4-ethynylphenyl)benzene CAS 71866-86-9

Covalent Organic Frameworks (COFs) Terphenyl Ligand

An ethynyl ligand linker for COFs in application of carbon dioxide reduction, hydrogen peroxide detection, battery cathode and water spillage.

Specifications | MSDS | Literature and Reviews

1,3,5-Tris(4-ethynylphenyl)benzene (TEPB), CAS number 71866-86-9, has a trigonal structure with three 4-ethynylphenyl groups sitting at meta-positions to each other around a benzene ring. 1,3,5-Tris(4-ethynylphenyl)benzene is generally engaged in the synthesis of porous conjugated polymers (PCPs) and other semiconducting covalent organic frameworks (COFs).

Microporous conjugated semiconducting polymer, PCP-SO-TPB, prepared from 1,3,5-tris(4-ethynylphenyl)benzene as the linker and 2,7-dibromodibenzo[b,d]thiophene 5,5-dioxide as the active nodes via Sonogashira–Hagihara cross-coupling reaction, exhibited high BET surface areas, high CO₂over N₂ selectivity, and broad visible light absorptions. PCP-SO-TPB demonstrated high carbon monoxide production rate of 40.12 μmol h⁻¹ g⁻¹ and nearly 100% product selectivity without using organic sacrificial reagent and additional cocatalyst.

1,3-diyne-linked conjugated microporous polymer nanosheets (CMPNs), prepared by oxidative coupling of terminal alkynes 1,3,5-tris-(4-ethynylphenyl)benzene, demonstrated highly efficient photocatalytic activity for hydrogen production under visible light with quantum efficiency of 10.3% at 420 nm.

MOF and COF ligands

Ethyne ligand for cross-linked COF networks

Worldwide shipping

Quick and reliable shipping

High purity

>97% High purity

Facile reactions

Readily for click reaction and Sonogashira reaction

General Information

CAS Number	71866-86-9
Chemical Formula	C₃₀H₁₈
Full Name	1,3,5-Tris(4-ethynylphenyl)benzene
Molecular Weight	378.46 g/mol
Synonyms	TEPB, 4,4''-Diethynyl-5'-(4-ethynylphenyl)-1,1':3',1''-terphenyl
Classification / Family	Terphenyl, COF ligands

Chemical Structure

Product Details

Purity	>97%
Melting Point	210 °C
Appearance	Off white to yellow powder/crystals

MSDS Documentation

1,3,5-Tris(4-ethynylphenyl)benzene MSDS Sheet

Literature and Reviews

1,3,5-Triphenylbenzene Based Porous Conjugated Polymers for Highly Efficient Photoreduction of Low-Concentration CO2 in the Gas-Phase System, C. Dai et al., Solar RRL, 6 (4), 2100872 (2022); DOI: 10.1002/solr.202100872.
Poly(1,3,5-tris(4-ethynylphenyl)-benzene) Conjugated Polymers as Electrochemical Sensors for Hydrogen Peroxide Detection, C. Qi et al., ACS Appl. Polym. Mater., 2 (2), 685–690 (2020); DOI: 10.1021/acsapm.9b01013.
Conjugated Microporous Polymer Nanosheets for Overall Water Splitting Using Visible Light, L. Wang et al., Adv. Mater., 29 (38), 1702428 (2017); DOI: 10.1002/adma.201702428.

Recent Progress of Amorphous Porous Organic Polymers as Heterogeneous Photocatalysts for Organic Synthesis, Y. Wang et al., Adv. Funct. Mater., 2307179 (2023); DOI: 10.1002/adfm.202307179.
Designing 3D Porous Organic Polymers for High-Performance Organic Battery Cathodes, B. Liao et al., ACS Appl. Energy Mater., 6 (16), 8581–8589 (2023); DOI: 10.1021/acsaem.3c01467.