Synthesis and Fluorescence Properties of1-Bromo-4-( 2,2-diphenylvinyl) benzene

Paper

Synthesis and Fluorescence Properties of1-Bromo-4-( 2,2-diphenylvinyl) benzene

Published 2015 · Liang Zuo-qi

Chinese Journal of Synthetic Chemistry

UNKNOWN SJR score

0

Citations

0

Influential Citations

Semantic Scholar

Abstract

1-Bromo-4-( 2,2-diphenylvinyl) benzene( 1) was synthesized by Wittig- Horner reaction of benzophenone with( 4-bromobenzyl) phosphonic acid dimethyl ester( 2),which was prepared by nucleophilic reaction of 1-bromo-4-bromomethyl-benzene with trimethyl phosphite. The structure was characterized by1 H NMR,13 C NMR,IR,EI-MS and XRD. The steric configuration of 1( CCDC:1 056 026) is beneficial to hinder the tight intermolecular packing. Photoluminescence properties in solution and solid state of 1 were investigate by FL. λemof 1 was 350 nm( λex= 307 nm) with fluorescence intensity of 7 377 in toluene solvent and λemwas 442( λex= 372 nm) with fluorescence intensity of 3. 0 × 105 in solid-state. The fluorescence intensity of 1 in solid state is 40. 7 times as high as that in solution state. So 1 exhibited AIE peculiarity.

Study Snapshot

1-Bromo-4-(2,2-diphenylvinyl) benzene exhibits AIE peculiarity with a fluorescence intensity 40.7% higher in solid state compared to solution state.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

Sign up to use Study Snapshot

Consensus is limited without an account. Create an account or sign in to get more searches and use the Study Snapshot.

Create an account

Synthesis and Fluorescence Properties of1-Bromo-4-( 2,2-diphenylvinyl) benzene

Sign up to use Study Snapshot

References

Citations