dibenzo-18-crown-6, CAS No. 14187-32-7

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14187-32-7

Catalog No. EBD2138482

CAS 14187-32-7

Name dibenzo-18-crown-6

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Basic Information

Synonyms: 18-dibenzocrown-6 dibenzo-18-crown-6 6,7,9,10,12,13,20,21-Octahydrodibenzo[b,k][1,4,7,10,13,16]hexaoxacyclo-octadecin Dibenzocrownminwhitepowder Di-benzo18-C-6 Dibenzanthracene-18-Crown-6 6,7,9,10,17,18,20,21-octahydrodibenzo[b,k][1,4,7,10,13,16]hexaoxacyclooctadecine 6,7,9,10,12,13,15,16-octahydrodibenzo[b,e][1,4,7,10,13,16]hexaoxacyclooctadecine crown18 crown-18 dibenzocrown dibenzo-18-crown6-ether diphenyl-18-crown-6-polyether

Molecular Formula: C20H24O6

Molecular Weight: 360.4

MDL Number: MFCD00005098

Categories: Materials Chemistry > Adsorption and Separation Materials > Macrocyclic and Host-Guest Chemistry Building Blocks Synthetic Chemistry > Organic Building Blocks > Other Organic Building Blocks

Product Description:

Dibenzo-18-crown-6 (DB18C6) is a macrocyclic polyether compound belonging to the crown ether family. Its structure consists of a central 18-membered ring containing six oxygen atoms, with two benzene rings fused to the ring system. This specific architecture endows it with a strong and selective binding affinity for potassium (K⁺) and ammonium (NH₄⁺) cations, forming stable host-guest complexes. Its primary applications are rooted in its ability to selectively complex with specific ions. It is widely used as a phase-transfer catalyst in organic synthesis to facilitate reactions between ionic reagents and organic substrates in immiscible solvents. In analytical chemistry, it serves as a key component in ion-selective electrodes and as a complexing agent in separation science, including liquid-liquid extraction and membrane transport processes for the selective removal or sensing of target cations. Beyond these core uses, DB18C6 finds roles in materials science, such as in the preparation of supramolecular assemblies and functional materials. It is also utilized in fundamental research to study cation-π interactions and molecular recognition phenomena. As a versatile macrocyclic ligand, it is a foundational building block in supramolecular and coordination chemistry.

Physical Properties

Melting Point: 162-164 °C(lit.)

Boiling Point: 380-384 °C (679 mmHg)

Flash Point: 380-384°C/679mm

Density: 1.108 g/cm3

Solubility: sparingly soluble

Analytical Data

Appearance: white to slightly beige fluffy powder