26628-82-0

Basic information

• Product Name: trans-stilbene radical anion
• CAS NO: 26628-82-0
• Molecular Weight: 179.241
• Mol File: 26628-82-0.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: trans-stilbene radical anion(CAS DataBase Reference)
• NIST Chemistry Reference: trans-stilbene radical anion(26628-82-0)
• EPA Substance Registry System: trans-stilbene radical anion(26628-82-0)

Safety Data

• Hazardous Substances Data: 26628-82-0(Hazardous Substances Data)

Upstream product

• 103-30-0 (E)-1,2-diphenyl-ethene 
• 7087-68-5 N-ethyl-N,N-diisopropylamine 

Relevant articles and documents

TRANS-STILBENE-AMINE EXCIPLEXES. BEHAVIOR OF THE EXCIPLEX, SOLVENT-SEPARATED RADICAL ION PAIR, AND FREE RADICAL IONS.

The interaction of singlet trans-stilbene with several trialkylamines and diamines in acetonitrile solution has been investigated by a combination of steady-state measurements and time-resolved resonance Raman spectroscopy. Adduct formation between trans-stilbene and acyclic monoamines is proposed to occur via a short-lived exciplex (contact radical ion pair) intermediate, which is not quenched by ground-state amine. A solvent-separated radical ion pair is formed either directly from an encounter complex or via the exciplex and decays by intersystem crossing to yield triplet trans-stilbene, dissociation to yield free radical ions, or quenching by ground-state amine. Intersystem crossing is more rapid for the diamines vs. monoamines, resulting in a lower yield of free radical ions. Quenching of the solvent-separated radical ion pair by ground-state amine is subject to the same stereoelectronic effect as observed for exciplex quenching in nonpolar solvent.