13296-04-3Relevant articles and documents
Optically sensed, molecular shuttles driven by acid-base chemistry
Vella, Sarah J.,Tiburcio, Jorge,Loeb, Stephen J.
, p. 4752 - 4754 (2007)
A pair of bistable [2]rotaxane, molecular shuttles were prepared that combine 1,2-bis(pyridinium)ethane and benzylanilinium recognition sites; acid-base controlled shuttling of DB24C8 was accompanied by a change in colour and/or fluorescence intensity. The Royal Society of Chemistry.
Electron transfer within self-assembling cyclic tetramers using chlorophyll-based donor-acceptor building blocks
Gunderson, Victoria L.,Smeigh, Amanda L.,Kim, Chul Hoon,Co, Dick T.,Wasielewski, Michael R.
, p. 4363 - 4372 (2012)
The synthesis and photoinduced charge transfer properties of a series of Chl-based donor-acceptor triad building blocks that self-assemble into cyclic tetramers are reported. Chlorophyll a was converted into zinc methyl 3-ethylpyrochlorophyllide a (Chl) and then further modified at its 20-position to covalently attach a pyromellitimide (PI) acceptor bearing a pyridine ligand and one or two naphthalene-1,8:4,5-bis(dicarboximide) (NDI) secondary electron acceptors to give Chl-PI-NDI and Chl-PI-NDI2. The pyridine ligand within each ambident triad enables intermolecular Chl metal-ligand coordination in dry toluene, which results in the formation of cyclic tetramers in solution, as determined using small- and wide-angle X-ray scattering at a synchrotron source. Femtosecond and nanosecond transient absorption spectroscopy of the monomers in toluene-1% pyridine and the cyclic tetramers in toluene shows that the selective photoexcitation of Chl results in intramolecular electron transfer from 1*Chl to PI to form Chl+?-PI -?-NDI and Chl+?-PI-?-NDI 2. This initial charge separation is followed by a rapid charge shift from PI-? to NDI and subsequent charge recombination of Chl+?-PI-NDI-? and Chl+?-PI- (NDI)NDI-? on a 5-30 ns time scale. Charge recombination in the Chl-PI-NDI2 cyclic tetramer (τCR = 30 ± 1 ns in toluene) is slower by a factor of 3 relative to the monomeric building blocks (τCR = 10 ± 1 ns in toluene-1% pyridine). This indicates that the self-assembly of these building blocks into the cyclic tetramers alters their structures in a way that lengthens their charge separation lifetimes, which is an advantageous strategy for artificial photosynthetic systems.
Novel hydrazone derivatives comprising aryl or heteroaryl group substituted at terminal amine and use thereof
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Paragraph 0325; 0327; 0328; 0472; 0474; 0475, (2020/08/28)
The present invention relates to novel hydrazone derivatives with an aryl or heteroaryl group substituted at a terminal amine group thereof and a use thereof.
RHO-ASSOCIATED PROTEIN KINASE INHIBITOR, PHARMACEUTICAL COMPOSITION COMPRISING THE SAME, AS WELL AS PREPARATION METHOD AND USE THEREOF
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Paragraph 0134; 0136, (2019/01/11)
The present invention relates to a Rho-associated protein kinase inhibitor of Formula (I), a pharmaceutical composition comprising the same, a preparation method thereof, and use thereof for the prevention or treatment of a disease mediated by the Rho-associated protein kinase (ROCK).