Synthesis of fluorescent dendrimers with an oligo(phenylenevinylene) core.
Novel fluorescent dendrimers of first, second, and third generation bearing a conjugated oligo(phenylenevinylene) (OPV) core and peripherial allyl chains as dendrons have been synthesized by a convergent method. The compounds have been fully characterized by 1H, 13C NMR, FTIR, UV-vis, and fluorescence spectroscopy, MALDI-TOF or FAB+ mass spectroscopy and elemental analysis. All dendrimers showed in solution a blue fluorescence with a maximum wavelength at 444-446 nm and can be deposited as thin films emitting in the blue-green region. The most homogeneous films were obtained for the second generation dendrimer which also exhibits the higher quantum yield in solution. These properties make it a possible candidate for application in organic light emitting diodes (OLEDs).
Instituto de Quimica, UNAM, Ciudad Universitaria, Circuito Exterior, CP 04510, México DF, Mexico.
J G
JG
Dominguez-Chávez
I
I
Lijanova
I
I
Moggio
E
E
Arias
R A
RA
Vazquez-Garcia
I
I
Reyes-Valderrama Ma
T
T
Klimova
M
M
Gutierrez-Nava
M
M
Martínez-García
D050091:Dendrimers / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D008956:Models, Chemical; D008968:Molecular Conformation; D053758:Nanoparticles / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*; D011145:Polyvinyls / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / Q000379:methods; D013053:Spectrophotometry; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared; D013997:Time Factors
D050091:Dendrimers; D005456:Fluorescent Dyes; D011145:Polyvinyls; C470024:poly(4-phenylenevinylene)