1552-41-6Relevant articles and documents
N-alkylation of indole compounds in modified Wittig-Horner reaction
Singh, Anil K.,Asefa, Abera
, p. 1491 - 1494 (2007)
N-Ethyl-3-styrylindoles are prepared under modified Wittig-Horner reaction conditions. Copyright Taylor & Francis Group, LLC.
Self-assembly and luminescence of oligo(p-phenylene vinylene) amphiphiles
Hulvat, James F.,Sofos, Marina,Tajima, Keisuke,Stupp, Samuel I.
, p. 366 - 372 (2005)
We have synthesized a series of amphiphilic molecules consisting of oligo(phenylene vinylene) (OPV) asymmetrically end-substituted with a hydrophilic poly(ethylene glycol) (PEG) segment and a hydrophobic alkyl chain. This amphiphilic structure induces sel
Supramolecular metallacycles with a 'pseudo double-paracyclophane' structure based on flexible π-conjugated linkers
Shen,El Sayed Moussa,Yao,Lescop
, p. 11560 - 11563 (2015)
The straightforward synthesis of new supramolecular metallacycles having a 'pseudo double-paracyclophane' structure is presented. They are obtained from the reaction of a pre-assembled Cu(i) bimetallic precursor bearing short intermetallic distances with
Determination and application of the excited-state substituent constants of pyridyl and substituted phenyl groups
Cao, Chao-Tun,Yan, Lu,Cao, Chenzhong
, (2021/05/21)
Thirty six 1-pyridyl-2-arylethenes XCH=CHArY (abbreviated XAEY) were synthesized, in which, X is 2-pyridyl, 3-pyridyl and 4-pyridyl and Y is OMe, Me, H, Br, Cl, F, CF3, and CN. Their ultraviolet absorption spectra were measured in anhydrous ethanol, and their wavelengths of absorption maximum λmax were recorded. Also, the 234 λmax values of 1-substituted phenyl-2-arylethylene compounds (XAEY, where X is substituted phenyl) were collected. The excited-state substituent constants (Formula presented.) of three pyridyl groups and 23 substituted phenyl groups (total of 26) were obtained by means of curve-fitting method. Taking the λmax values of 358 samples of bi-arylethene derivatives as a data set and 126 samples of bi-aryl Schiff bases (including nine compounds synthesized by this work) as another data set, quantitative correlation analyses were performed by employing the obtained (Formula presented.) as a parameter, and good results were obtained for the two data sets. The reliability of the obtained (Formula presented.) values was verified. The results of this paper can provide excited-state substituent constants for the study and application of optical properties of conjugated organic compounds containing aryl groups.
White light emission in water through admixtures of donor-π-acceptor siblings: Experiment and simulation
Kumari, Beena,Singh, Amit,Jana, Palash,Radhakrishna, Mithun,Kanvah, Sriram
, p. 11701 - 11709 (2019/07/31)
Donor-acceptor π-conjugated molecules with triphenylamine donor and different acceptor (H, cyano, and pyridinium) units with a double bond spacer were synthesized. These compounds exhibit bathochromic shifts in absorption and emission with an increase in the acceptor strength. Solvatochromic measurements in water reveal emitting states characterized by a polar nature with three distinct emission spectral regions from blue to red. Interestingly, binary mixtures of the stilbenes in acetonitrile and water gave white light emission. MD simulations of the admixtures reveal that the emission data directly correlate to the structural arrangements of the molecules driven by intermolecular and solvent interactions with micelle-like structural arrangements for one set and uniform homogenous mixing for the other two sets. Such a tunable emission strategy using simple structural siblings could offer great potential towards designing novel emitting systems.