38399-21-2

Basic information

• Product Name: ((3-bromonaphthalen-2-yl)methyl)triphenylphosphonium bromide
• Synonyms: ((3-bromonaphthalen-2-yl)methyl)triphenylphosphonium bromide
• CAS NO: 38399-21-2
• Molecular Weight: 562.283
• Mol File: 38399-21-2.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: ((3-bromonaphthalen-2-yl)methyl)triphenylphosphonium bromide(CAS DataBase Reference)
• NIST Chemistry Reference: ((3-bromonaphthalen-2-yl)methyl)triphenylphosphonium bromide(38399-21-2)
• EPA Substance Registry System: ((3-bromonaphthalen-2-yl)methyl)triphenylphosphonium bromide(38399-21-2)

Safety Data

• Hazardous Substances Data: 38399-21-2(Hazardous Substances Data)

Upstream product

• 38399-20-1 2-bromo-3-(bromomethyl)naphthalene 
• 603-35-0 triphenylphosphine 
• 20717-80-0 2-bromo-3-carboxynaphthalene 

Downstream Products

• 38399-22-3 2-Bromo-3-[1,2-dibromo-2-(2-bromo-phenyl)-ethyl]-naphthalene 
• 38399-17-6 2-Bromo-3-(2-bromo-phenylethynyl)-naphthalene 
• 38399-23-4 C₁₈H₁₀Br₄ 
• 38399-51-8 (Z)-2-bromo-3-(2-bromostyryl)naphthalene 
• 38399-52-9 (E)-2-bromo-3-(2-bromostyryl)naphthalene 

Relevant articles and documents

Controlling the S1energy profile by tuning excited-state aromaticity

The shape of the lowest singlet excited-state (S1) energy profile is of primary importance in photochemistry and related materials science areas. Here we demonstrate a new approach for controlling the shape of the S1 energy profile which relies on tuning the level of excited-state aromaticity (ESA). In a series of fluorescent π-expanded oxepins, the energy decrease accompanying the bent-to-planar conformational change in S1 becomes less pronounced with lower ESA levels. Stabilization energies following from ESA were quantitatively estimated to be 10-20 kcal/mol using photophysical data. Very fast planarization dynamics in S1 was revealed by time-resolved fluorescence spectroscopy. The time constants were estimated to be shorter than 1 ps, regardless of molecular size and level of ESA, indicating barrierless S1 planarization within the oxepin series.