Synthesis of C60-diphenylaminofluorene dyads with two-photon absorbing characteristics

Linear A-sp3-D molecular conjugates as 9,9-dialkyl-2-diphenylaminofluorene (DPAF-C,)-C60 monoadducts were demonstrated using methanoketo unit as a linker to bridge the DPAF donor moiety and the fullerene acceptor chromophore together within a short distance of roughly 2DDT0A. Target products of C60-...

Full description

Saved in:
Bibliographic Details
Published in:Synthetic metals 2005-09, Vol.154 (1-3), p.185-188
Main Authors: PADMAWAR, Prashant A, CANTEENWALA, Taizoon, VERM, Sarika, TAN, Loon-Seng, HE, Guang S, PRASAD, Paras N, CHIANG, Long Y
Format: Article
Language:English
Subjects:
Atomic and molecular clusters
Atomic and molecular physics
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Nonlinear optics
Optical properties of clusters
Optical susceptibility, hyperpolarizability
Optics
Physics
Studies of special atoms, molecules and their ions
clusters
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Linear A-sp3-D molecular conjugates as 9,9-dialkyl-2-diphenylaminofluorene (DPAF-C,)-C60 monoadducts were demonstrated using methanoketo unit as a linker to bridge the DPAF donor moiety and the fullerene acceptor chromophore together within a short distance of roughly 2DDT0A. Target products of C60-diphenylaminofluorene dyads C60( > DPAF-C2) and C60( > DPAF-C18) were synthesized using Bingel cycloproanation reaction from the corresponding 7-D*a-bromoacetyl-9,9-dialkyl-2-diphenylaminoflu orene precursors. Both dyads C60( > DPAF-C2) and C60( > DPAF-C18) were characterized by spectroscopic methods and simultaneous two-photon excitation measurements, showing large two-photon absorption cross-sections in the nanosecond regime.
ISSN:0379-6779
1879-3290
DOI:10.1016/j.synthmet.2005.07.047