نتایج جستجو برای: p-conjugated molecules
تعداد نتایج: 1468560 فیلتر نتایج به سال:
the research in the short-chain organic -conjugated molecules has become one of the most interesting topics in the fields of chemistry. these compounds have become the most promising materials for the optoelectronic device technology. the use of low band gap materials is a viable method for better harvesting of the solar spectrum and increasing its efficiency. the control of the band gap of th...
Ž . Ž . We use inverse photoelectron spectroscopy IPES and ultraviolet photoelectron spectroscopy UPS to investigate Ž . unoccupied and occupied electronic states of five organic semiconductor materials: CuPc copper phthalocyanine , PTCDA Ž . Ž . Ž X X Ž . X 3,4,9,10-perylenetetracarboxylic dianhydride , a-6T a-sexithiophene , a-NPD N,N -diphenyl-N,N -bis l-naphthyl -l,l XX . Ž Ž . . biphenyl-4...
Background: Staphylococcal protein A (SPA) is a cell wall component of Staphylococcus aureus that binds to different IgG subclasses of human and several animal species. This bacterial protein can be used as an antibody detector in various immunological assays or as an isolation reagent for the purification of antibody molecules via immuno-chromatography procedures.Objectives: Molecular cl...
The cyano(triphenylsilyl)phosphanide anion was prepared as a sodium salt from 2-phosphaethynolate. electronic structure of this new cyano(silyl)phosphanide studied via computational methods and its reactivity investigated using various electrophiles Lewis acids, demonstrating P- N-nucleophilicity. ambident is in agreement with computations. silyl group also shows lability therefore the can be c...
abstract part one: the electrode oxidation potentials of a series of eighteen n-hydroxy compounds in aqueous solution were calculated based on a proper thermodynamic cycle. the dft method at the level of b3lyp-6-31g(d,p) was used to calculate the gas-phase free energy differences ,and the polarizable continuum model (pcm) was applied to describe the solvent and its interaction with n-hydroxy ...
the research in new organic π-conjugated molecules with specific properties has become one of the most interesting topics in fields of materials chemistry. these materials are promising for optoelectronic device technology such as solar cells. on the other hand, the use of low band gap materials is a viable method for better harvesting of the solar spectrum and increasing its efficiency. the co...
Conduction of electro-migration gap junctions coated with various organic molecules is studied to expose the prevalence of different transport processes. The principal comparison made here is between molecules with conjugated versus non-conjugated backbones. Coulomb blockade (CB) is observed in all junctions, including bare junctions and those with non-conjugated molecules, but at significantly...
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