853377-10-3Relevant articles and documents
Electron Delocalization in Perylene Diimide Helicenes
Schuster, Nathaniel J.,Paley, Daniel W.,Jockusch, Steffen,Ng, Fay,Steigerwald, Michael L.,Nuckolls, Colin
, p. 13519 - 13523 (2016)
We report two new helicenes derived from the double fusion of an acene with two perylene diimide (PDI) subunits. These PDI-helicene homologs exhibit very different structural and electronic properties, despite differing by only a single ring in the link between the PDI units. The shorter inter-PDI link brings the two PDI subunits closer together, and this results in the collision of their respective π-electron clouds. This collision facilitates intramolecular through-space electronic delocalization when the PDI-helicene is reduced.
Multi-terpyridyl metal organic ligand compound, five-membered flower ring-shaped supramolecule assembled thereby, and preparation
-
Paragraph 0088-0091, (2020/11/23)
The invention discloses synthesis method of a five-membered flower cyclic supramolecule based on terpyridyl metal coordination. The supermolecule is a giant five-membered flower ring-shaped supermolecule formed by self-driving a ligand containing a plurality of terpyridyl and metal ruthenium and transition metal ions in a solvent, wherein the ligand and the transition metal can accurately react togenerate a single pentamer product without generation of other byproducts; then structural characterization and molecular weight determination are carried out on the ligand and a final assembly product through nuclear magnetism, mass spectrometry, scanning electron microscopy and other tests. The supermolecule has large molecular weight and good solubility, the molecular structure has symmetry and aesthetic properties, and gelation can be realized.
Organic photoelectric semiconductor material, synthesis method and applications thereof
-
Paragraph 0074; 0083; 0091-0096; 0097-0098; 0105-0111, (2020/01/12)
The invention discloses an organic photoelectric semiconductor material, a synthesis method and applications thereof, wherein the organic photoelectric semiconductor material is 2,7-dianthryl naphthalene, 2,7-bis(9,10-ditriisopropylsilylethynylanthryl)naphthalene or 2,7-bis(6-decylanthryl)naphthalene. The synthesis method comprises: in an inert gas environment, uniformly mixing a reactant A, a reactant B, tetrakis(triphenylphosphine)palladium as a catalyst, toluene and a potassium carbonate aqueous solution, heating to 90-100 DEG C, reacting for 24-96 h, filtering to obtain filter residue, andwashing the filter residue with a detergent to obtain the organic photoelectric semiconductor material. According to the invention, the preparation reaction route has advantages of simplicity, high efficiency, environmental friendliness, cheap raw materials and low synthesis cost; the method is high in universality and good in repeatability; and the new choice is provided for high-performance organic photoelectric materials.
Cobalt-Catalyzed Regioselective Borylation of Arenes: N-Heterocyclic Silylene as an Electron Donor in the Metal-Mediated Activation of C?H Bonds
Ren, Hailong,Zhou, Yu-Peng,Bai, Yunping,Cui, Chunming,Driess, Matthias
supporting information, p. 5663 - 5667 (2017/04/28)
C?H Borylation of arenes has been a subject of great interest recently because of its atom-economy and the wide applicability of borylated products in value-added synthesis. A new bis(silylene)cobalt(II) complex bearing a bis(N-heterocyclic silylene)-pyridine pincer ligand (SiNSi) has been synthesized and structurally characterized. It enabled the regioselective catalytic C?H borylation of pyridines, furans, and fluorinated arenes. Notably, it exhibited complementary regioselectivity for the borylation of fluorinated arenes compared to previously known catalytic systems, demonstrating that N-heterocyclic silylene donors have enormous potential in metal-catalyzed catalytic applications.
