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4,4'-Diethynyl-1,1'-biphenyl

CAS Number 38215-38-2

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


Product Code B3841-1g
Price £85 ex. VAT

Covalent Organic Frameworks (COFs) Phenylacetylene Ligand

A rigid ethynyl functional ligand linker for COFs in application of photoluminescent probe, catalyst, fluoride detection and palladium scavenger


Specifications | MSDS | Literature and Reviews


4,4'-Diethynyl-1,1'-biphenyl (DEBP), CAS number 38215-38-2, is a rigid linear biphenyl ligand with extended conjugation of ethynyl functional groups on both ends.

DEBP-BMOP, a Lewis acidic microporous organic polymer derived from tris(4-bromo-2,3,5,6-tetramethylphenyl)boron nodes and 4,4'-diethynyl-1,1'-biphenyl linkers with a pore size of 1.08 nm has been engaged in selective sensing and capture of fluoride ion. DEBP-BMOP showed selective turn-on blue emission for fluoride ions in aqueous mixtures with a detection limit of 2.6 μM. 

Porous polymeric metalloporphyrin [PoP(MTPP), M = Co, Mn], derived from metal complexes of (5,10,15,20-tetrakis(p-bromophenyl) porphyrin) (MT4BrPP) (M = Co, Mn) and 4,4'-diethynyl-1,1'-biphenyl as monomers by Sonogashira cross-coupling reaction served as a catalyst for the cycloaddition reaction of epoxides and CO2 to form cyclocarbonate with a high yield of 90%.

MOF and COF ligands

MOF and COF ligands

Ethyne ligand for cross-linked COF networks

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High purity 38215-38-2

High purity

>97% High purity

Facile reactions

Facile reactions

Readily for click reaction and Sonogashira reaction

General Information


CAS Number 38215-38-2
Chemical Formula C16H10
Full Name 4,4'-Diethynyl-1,1'-biphenyl
Molecular Weight 202.26 g/mol
Synonyms DEBP - 4,4'-Diethynylbiphenyl
Classification / Family Phenylacetylene COF ligands

Chemical Structure


38215-38-2 - 4,4'-diethynylbiphenyl chemical structure
4,4'-Diethynyl-1,1'-biphenyl (DEBP) Chemical Structure, 38215-38-2

Product Details


Purity >97%
Melting Point 168 °C
Appearance White to light yellow to orange powder/crystals

MSDS Documentation


38215-38-2 - 4,4'-diethynyl-1,1'-biphenyl4,4'-Diethynyl-1,1'-biphenyl MSDS Sheet

Literature and Reviews


  1. Chain-growth copolymerization of functionalized ethynylarenes with 1,4-diethynylbenzene and 4,4′-diethynylbiphenyl into conjugated porous networks, S. Stahlová et al., Eur. Polym., J., 67, Stahlová (2015); DOI: 10.1016/j.eurpolymj.2015.03.070.
  2. Synthesis of poly[2]catenane having rigid linkage by 1,3-dipolar cycloaddition of diazido[2]catenane with 4,4′-diethynylbiphenyl, T. Hagiwara et al., Polymer, 52 (24), 5426-5430 (2011); DOI: 10.1016/j.polymer.2011.10.022.
  3. Highly Luminescent Microporous Organic Polymer with Lewis Acidic Boron Sites on the Pore Surface: Ratiometric Sensing and Capture of F− Ions, V. Suresh et al., Chem. Eur. J., 21 (30), 10799-10804 (2015); DOI: 10.1002/chem.201500406.
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