CAS 119-91-5 2,2'-Biquinoline - Catalysts / Alfa Chemistry

Synonyms

Cuproin; 2,2'-Diquinolyl

IUPAC Name

2-quinolin-2-ylquinoline

Molecular Weight

256.30

Molecular Formula

C18H12N2

Canonical SMILES

C1=CC=C2C(=C1)C=CC(=N2)C3=NC4=CC=CC=C4C=C3

InChI

WPTCSQBWLUUYDV-UHFFFAOYSA-N

InChI Key

InChI=1S/C18H12N2/c1-3-7-15-13(5-1)9-11-17(19-15)18-12-10-14-6-2-4-8-16(14)20-18/h1-12H

Melting Point

192-195 °C-lit.

Purity

98%+

Solubility

3.98e-06 M;

Appearance

Powder or crystal

Storage

Store at +15°C to +25°C.

Complexity

297

Covalently-Bonded Unit Count

EC Number

204-357-5

Exact Mass

256.100048391

H-Bond Acceptor

Heavy Atom Count

Monoisotopic Mass

256.100048391

NSC Number

1533

Rotatable Bond Count

Topological Polar Surface Area

25.8 Å²

UNII

6RO6GA6RP3

Application

2,2'-Biquinoline is a versatile chemical compound primarily used as a reagent for the spectrophotometric determination of copper, where it forms distinctive purple complexes with monovalent cupric ions, making it highly selective for detecting cuprous ions. Additionally, it serves as an indicator in the titration of organolithium reagents by creating yellow-green charge-transfer complexes. In the field of material science, 2,2'-Biquinoline functions as a ligand in the synthesis of heteroleptic copper(I) complexes for light-emitting diodes (LEDs) and cationic iridium(III) complexes, which are valuable as phosphorescent dyes in live-cell imaging. Despite being insoluble in water, it is soluble in various solvents such as ethyl and isoamyl alcohol, acetonitrile, and carbon tetrachloride, and appears as slightly yellow to light beige shiny flakes or a white crystalline solid with a melting point of 176°C.

February 17, 2025

Outstanding Reagent for Cu Determination in Research

Using Alfa Chemistry's 2,2'-Biquinoline for spectrophotometric Cu determination was seamless. The reagent's selective reaction forming yellow-green complexes was vital in my study, enhancing accuracy in results. Highly recommended for precise analytical applications.