27802-00-2

Basic information

• Product Name: 1,1'-Diphenyl-Δ4,4'(1H,1'H)-bipyridine
• Synonyms: 1,1'-Diphenyl-Δ4,4'(1H,1'H)-bipyridine
• CAS NO: 27802-00-2
• Molecular Formula: C₂₂H₁₈N₂
• Molecular Weight: 310.39172
• Mol File: 27802-00-2.mol
• Article Data: 1

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 1,1'-Diphenyl-Δ4,4'(1H,1'H)-bipyridine(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1'-Diphenyl-Δ4,4'(1H,1'H)-bipyridine(27802-00-2)
• EPA Substance Registry System: 1,1'-Diphenyl-Δ4,4'(1H,1'H)-bipyridine(27802-00-2)

Safety Data

• Hazardous Substances Data: 27802-00-2(Hazardous Substances Data)

Upstream product

• 47369-00-6 1,1’-diphenyl-4,4’-bipyridinium dichloride 
• 861309-52-6 1,1'-diphenyl-1,4,1',4'-tetrahydro-[4,4']bipyridinyl 

Relevant articles and documents

Isolation and characterization of phenyl viologen as a radical cation and neutral molecule

The chemical synthesis, isolation, and characterization of phenyl viologen (PV) as a dication, radical cation, and neutral species are described. Single-crystal X-ray diffraction of PV2+2Cl-H 2O and PV.+PF6-.pyridine reveals the expected differences in bond lengths and also a structural change from two coplanar central rings in PV.+ to a twist of 36° between the two central rings in PV2+. The phenyl viologen radical cation exhibits behavior characteristic of many radical cations, including weak π-dimerization in the solid state and reversible π-dimerization in solution. Electrical conductivity measurements of neutral phenyl viologen, the first such measurements of a neutral viologen, reveal that it is a significantly better conductor than the radical cation. Differences in geometric relaxation during charge transfer offer a possible explanation for the higher conductivity of the neutral viologen.