3259-17-4Relevant academic research and scientific papers
Design of a series of polythiophenes containing C60 groups: Synthesis and optical and electrochemical properties
Perrin, Lara,Legros, Mathilde,Mercier, Rgis
, p. 323 - 336 (2015)
(Figure Presented) In order to develop polymers combining both acceptor and donor moieties, a series of alternating copolymers based on C60 fullerene and oligothiophenes were synthesized. First, a diamino-functionalized fullerene was obtained by a three-step modification of 4,4′-diaminobenzophenone, followed by a Bamford - Stevens addition on C60. A series of oligo-3-alkylthiophenes O3AT, with various polymer and alkyl chains lengths, were synthesized using the Grignard metathesis method and dicarbonylated by Vilsmeier formylation. Alternating copolymers [C60-O3AT]n were finally obtained by polycondensation, taking a specific care concerning synthesis conditions in order to optimize polymerization degrees. Nuclear magnetic resonance, infrared spectroscopy, gel permeation chromatography and thermogravimetric analysis were achieved in order to determine the structure of each copolymers. In addition, their functional properties (UV-vis absorption, photoluminescence, and electronic levels) were measured and related to the ascertained average compositions.
Enantioselective Intermolecular C-O Bond Formation in the Desymmetrization of Diarylmethines Employing a Guanidinylated Peptide-Based Catalyst
Chinn, Alex J.,Kim, Byoungmoo,Kwon, Yongseok,Miller, Scott J.
supporting information, p. 18107 - 18114 (2017/12/26)
We report a series of enantioselective C-O bond cross-coupling reactions based on remote symmetry breaking processes in diarylmethine substrates. The key to the chemistry is multifunctional guanidinylated peptide-based ligands that allow highly selective,
Synthesis and electrochemical properties of tetrasubstituted tetraphenylethenes
Schreivogel, Alina,Maurer, Joerg,Winter, Rainer,Baro, Angelika,Laschat, Sabine
, p. 3395 - 3404 (2007/10/03)
Tetrakis(4-acetoxyphenyl and 4-benzoyloxyphenyl)ethenes 1f and 1g were obtained by acylation of tetrakis(4-hydroxyphenyl)ethene 1b. Ullmann etherification of 4,4′-dihydroxybenzophenone 2b and subsequent McMurry coupling yielded tetrakis(phenoxyphenyl)ethe
Highly efficient light-harvesting organofullerenes
Gomez, Rafael,Segura, Jose L.,Martin, Nazario
, p. 717 - 720 (2007/10/03)
(Chemical Equation Presented) Diphenylmethanofullerene-perylenebisimide dyads and triads have been prepared as light harvesters and electron acceptors for the preparation of efficient organic solar cells. The presence of swallowtail chains on the perylene
