Supramolecular assembly of graphene with functionalized poly(fluorene-alt-phenylene): the role of the anthraquinone pendant groups.

  title={Supramolecular assembly of graphene with functionalized poly(fluorene-alt-phenylene): the role of the anthraquinone pendant groups.},
  author={Marta Castela{\'i}n and Horacio Javier Salavagione and Rafael G{\'o}mez and Jos{\'e} L. Segura},
  journal={Chemical communications},
  volume={47 27},
Hybrid materials composed of graphene and conjugated poly(fluorene-alt-phenylene) endowed with redox-active anthraquinone moieties are prepared. Remarkable changes in the electronic properties of the polymer are observed. Effective interactions among the pendant anthraquinone and graphene, likely due to π-π stacking, are confirmed. 
Preparation of dispersible graphene through organic functionalization of graphene using a zwitterion intermediate cycloaddition approach
Highly functionalized graphene were obtained through a zwitterion intermediate cycloaddition onto exfoliated graphene flakes under new reaction conditions. The functionalized graphene obtained formed
Graphene functionalisation with a conjugated poly(fluorene) by click coupling: striking electronic properties in solution.
The success of the click-coupling approach was confirmed by FTIR, (1)H NMR, Raman, and X-ray photoelectron spectroscopy (XPS), and the absorption and emission spectra of the Click product show a strong solvent dependency.
"Click"-functionalization of [60]fullerene and graphene with an unsymmetrically functionalized diketopyrrolopyrrole (DPP) derivative.
A synthetic strategy is developed that allows for the facile functionalization of carbon nanostructures thus providing the possibility of comparing the striking different optical and electrochemical
Synthesis of graphene-conjugated polymer nanocomposites for electronic device applications.
This minireview will summarize the recent advances in the development of graphene-CP nanocomposites for electronic device applications.
Ultrafast charge separation in supramolecular tetrapyrrole-graphene hybrids.
Supramolecular donor-acceptor hybrids composed of few-layer graphene as an electron acceptor and phthalocyanine or porphyrin bearing four pyrene entities as photosensitizer donors have been
Linking photo- and redoxactive phthalocyanines covalently to graphene.
Physicochemical characterizations reveal an ultrafast charge separation from the photoexcited phthalocyanine to few-layer graphene followed by a slower charge recombination.
Electron-accepting phthalocyanine–pyrene conjugates: towards liquid phase exfoliation of graphite and photoactive nanohybrid formation with graphene
Herein, we describe the synthesis of a zinc(II) alkylsulfonylphthalocyanine–pyrene conjugate, its assembly with highly exfoliated graphite, and the investigation of the photophysical properties of
The chemistry of pristine graphene.
Current approaches for the preparation of modified pristine graphene are reviewed, which encompass the use of graphite as initial material and are directed to wet chemical approaches toward high-quality graphene flakes.
Electron-donating behavior of few-layer graphene in covalent ensembles with electron-accepting phthalocyanines.
This is the first example of an electron donor-acceptor nanoconjugate, that is, few-layer graphene/phthalocyanine, pinpointing the uncommon electron donating character of graphene.
Synthesis and intramolecular hydrogen bonding networks of 2,4,6-tri(o-hydroxyaryl)-1,3,5-triazines.
Functionalized, triaryl substituted triazines were synthesized via the Friedel-Crafts arylation reaction and possess unique, intramolecular hydrogen bonding motifs, which provide tunable planarity.


High-yield organic dispersions of unfunctionalized graphene.
We report a simple, high-yield, method of producing homogeneous dispersions of unfunctionalized and nonoxidized graphene nanosheets in ortho-dichlorobenzene (ODCB). Sonication/centrifugation of
Chemical derivatisation of multiwalled carbon nanotubes using diazonium salts.
A chem. activated method of covalently derivatizing carbon powder, via the chem. redn. of aryl diazonium salts with hypophosphorous acid, to include the covalent derivatization of multiwalled carbon
Synthesis and photophysical properties of conjugated polymers with pendant 9,10-anthraquinone units.
The photophysical properties of a series of electron-donor conjugated copolymers with pendant electron-acceptor units, designed to have different optical pi-pi* band gaps, are investigated.
Influence of single-walled carbon nanotubes induced crystallinity enhancement and morphology change on polymer photovoltaic devices.
  • J. Geng, T. Zeng
  • Chemistry, Medicine
    Journal of the American Chemical Society
  • 2006
Single-walled carbon nanotubes (SWNTs) were determined to have significant interaction with poly(3-hexylthiophene) (P3HT), which is helpful to form continuous active film with interpenetrating
Spectroelectrochemical Study of Electron and Energy Transfer in Poly(fluorene-alt-phenylene) with Perylenediimide Pendant Groups
Electrochemical and spectroelectrochemical studies have been performed on a (fluorene-alt-phenylene) polymer with perylenediimide pendant groups. This polymer can be p-doped by oxidation of the
Stacking of polycyclic aromatic hydrocarbons as prototype for graphene multilayers, studied using density functional theory augmented with a dispersion term.
For stacked bilayers (dimers) and multilayers of polyaromatic hydrocarbons, which serve as molecular models of graphene sheets, it is found that binding energies and energy gaps are strongly dependent on their sizes, while the stacking order and the number of stacked layers have a minor influence.
High-quality few layer graphene produced by electrochemical intercalation and microwave-assisted expansion of graphite
Few-layer graphene is synthesized from electrochemically-produced graphite intercalation compounds in aqueous perchloric acid. Although anodic intercalation is more efficient in terms of time,
Synthesis, optical properties, and aggregation behavior of a triad system based on perylene and oligo(p-phenylene vinylene) units.
CPK models with a dimeric structure, in which two perylene molecules are held together by intermolecular hydrogen bonding with the perylene core shifted slightly with respect to one another, could account for the optical properties and the observation of the four different peaks in the (1)H NMR spectra in polar solvent.
Polymer Photovoltaic Cells Based on Solution‐Processable Graphene and P3HT
A soluble graphene, which has a one-atom thickness and a two-dimensional structure, is blended with poly(3-hexylthiophene) (P3HT) and used as the active layer in bulk heterojunction (BHJ) polymer
Single-wall carbon nanotube/conjugated polymer photovoltaic devices
We report the optoelectronic properties occurring in single-walled carbon nanotubes (SWNTs)—conjugated polymer, poly(3-octylthiophene) composites. Composite films were drop or spin cast from a