Blue emitting C2-symmetrical dibenzothiazolyl substituted pyrrole, furan and thiophene
نویسندگان
چکیده
منابع مشابه
Structure and optoelectronic properties of helical pyridine-furan, pyridine-pyrrole and pyridine-thiophene oligomers.
Density functional theory based calculations have been carried out to systematically investigate the structural and optoelectronic properties of pyridine-furan, pyridine-pyrrole and pyridine-thiophene oligomers. Comparison of results obtained at B3LYP/6-31G(d) and B3LYP-D3/6-31G(d) levels of theories reveals that the inclusion of dispersion correction with the B3LYP functional has a major impac...
متن کاملVibronic structure of the valence p-photoelectron bands in furan, pyrrole, and thiophene
The A2 and B1 states formed in the ionization of the outermost p orbitals in furan, pyrrole and thiophene are shown to interact vibronically via nontotally symmetric b2 vibrational modes. The interaction is strongest in pyrrole and thiophene, where the conical intersection between the two adiabatic surfaces occurs near the minimum of the upper (B1) state. The resulting nonadiabatic effects mani...
متن کاملReactions of substituted furan-2-carboxaldehydes and furo[b]pyrrole type aldehydes with benzothiazolium salts.
A series of new push-pull compounds were synthesised by reaction of 5-aryl- furan-2-carboxaldehydes and furo[b]pyrrole type aldehydes with benzothiazolium salts. These new condensation products represent highly conjugated systems that have potential biological activity. The reaction of furo[b]pyrrole type aldehydes with benzothiazolium salts give potential precursors of cyanine dyes.
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4-Heteroarylidene-2-phenyl-1,3-oxazol-5(4H)-ones were prepared by reactions of hippuric acid with substituted furan-2-carboxaldehydes or furo[b]pyrrole type aldehydes. The reactivity of various furan-2-carboxaldehyde derivatives in this reaction is discussed. The effect of microwave irradiation on some condensation reactions was compared with "classical" conditions. The results show that microw...
متن کاملA facile preparation of trisubstituted amino-furan and -thiophene derivatives.
β-Alkylation of amino-furan and -thiophene heterocycles is described through metal-, acid- and base-free carbon-carbon bond formation. The ability of both heterocycles to undergo selective β-alkylation is compared by mean of experimental and theoretical data. The presence of chiral amine substituents induced the diastereoselective generation of the newly formed additional stereocenter.
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ژورنال
عنوان ژورنال: Journal of Materials Chemistry C
سال: 2013
ISSN: 2050-7526,2050-7534
DOI: 10.1039/c3tc00760j