Modular electron donor group tuning of frontier energy levels in diarylaminofluorenone push–pull molecules

2012 ◽  
Vol 14 (34) ◽  
pp. 11961 ◽  
Author(s):  
Paul J. Homnick ◽  
Paul M. Lahti
Keyword(s):  
Electron Donor ◽  
Energy Levels ◽  
Donor Group

Synthesis and properties of a new second-order NLO chromophore containing the benzo[b]furan moiety for electro-optical materials

RSC Advances ◽  
2014 ◽  
Vol 4 (63) ◽  
pp. 33312-33318 ◽  
Author(s):  
Maolin Zhang ◽  
Guowei Deng ◽  
Airui Zhang ◽  
Huajun Xu ◽  
Heyan Huang ◽  
...  
Keyword(s):  
Electron Donor ◽  
Optical Materials ◽  
Furan Ring ◽  
Second Order ◽  
Donor Group ◽  
Nlo Chromophores ◽  
Furan Moiety

We have designed and synthesized a new chromophore having a 1,1,7,7-tetramethyljulolidine fused furan ring as the electron donor group to systematically investigate the role of the benzo[b]furan ring in NLO chromophores.

scholarly journals Synthesis and characterization of novel second-order NLO-chromophores bearing pyrrole as an electron donor group

Tetrahedron ◽  
2012 ◽  
Vol 68 (39) ◽  
pp. 8147-8155 ◽  
Author(s):  
M. Cidália R. Castro ◽  
M. Belsley ◽  
A. Maurício C. Fonseca ◽  
M. Manuela M. Raposo
Keyword(s):  
Electron Donor ◽  
Second Order ◽  
Synthesis And Characterization ◽  
Donor Group ◽  
Nlo Chromophores

Influence of 1,3,5-triazine Core and Electron Donor Group in Photophysical Properties of BODIPY Dyes

2019 ◽  
Vol 29 (4) ◽  
pp. 845-852
Author(s):  
María Teresa Páez González ◽  
Shaiani Maria Gil de Mello ◽  
Flavio da Silva Emery
Keyword(s):  
Electron Donor ◽  
Photophysical Properties ◽  
Donor Group

Thiazole as a weak electron-donor unit to lower the frontier orbital energy levels of donor–acceptor alternating conjugated materials

2013 ◽  
Vol 49 (85) ◽  
pp. 9938 ◽  
Author(s):  
Elena Zaborova ◽  
Patricia Chávez ◽  
Rony Bechara ◽  
Patrick Lévêque ◽  
Thomas Heiser ◽  
...  
Keyword(s):  
Electron Donor ◽  
Energy Levels ◽  
Orbital Energy ◽  
Frontier Orbital ◽  
Conjugated Materials ◽  
Donor Acceptor ◽  
Weak Electron ◽  
Frontier Orbital Energy

Functionalized Rosette Nanotubes as Novel Electron Donor Materials for Solution-Processed Organic Photovoltaics

2015 ◽  
Vol 1737 ◽  
Author(s):  
Liang Shuai ◽  
Venkatakrishnan Parthasarathy ◽  
Jae-Young Cho ◽  
Takeshi Yamazaki ◽  
Rachel L. Beingessner ◽  
...  
Keyword(s):  
Electron Donor ◽  
Organic Photovoltaics ◽  
Energy Levels ◽  
Spectroscopic Techniques ◽  
Solution Processed ◽  
Rosette Nanotubes ◽  
Self Assembling ◽  
Hybrid Molecules ◽  
Homo And Lumo ◽  
Homo And Lumo Energy

ABSTRACTTwo self-assembling twin guanine-cytosine (G∧C) hybrid molecules featuring porphyrin (TPPO-(G∧C)2) and oligothiophene groups (6T-(G∧C)2) were synthesized. In organic solution, these molecules self-assemble into one-dimensional rosette nanotubes (RNTs) featuring the porphyrin or oligiothiophene groups on the outer surface. Using a combination of imaging and spectroscopic techniques we established the structure of the TPPO-(G∧C)2 and 6T-(G∧C)2 RNTs and compared the HOMO and LUMO energy levels with PC61BM, a well-known electron acceptor material. These studies, in combination with solid-state photoluminescence data of PC61BM-TPPO-(G∧C)2 RNT blended thin films, indicates that these self-assembled nanomaterials have great potential as electron donor materials for solution-processed organic photovoltaics.

scholarly journals Synthesis of SF5-containing benzisoxazoles, quinolines, and quinazolines by the Davis reaction of nitro-(pentafluorosulfanyl)benzenes

2013 ◽  
Vol 9 ◽  
pp. 411-416 ◽  
Author(s):  
Petr Beier ◽  
Tereza Pastýříková
Keyword(s):  
Electron Donor ◽  
Electron Acceptor ◽  
Carbonyl Compounds ◽  
Donor Group ◽  
Condensation Reactions ◽  
Acceptor Group ◽  
Synthetic Utility ◽  
High Yields

Meta- or para-nitro-(pentafluorosulfonyl)benzenes underwent the Davis reaction with arylacetonitriles to provide the SF5-containing benzisoxazoles. Good yields were obtained with arylacetonitriles containing the electron-neutral or electron-donor group, while those with the electron-acceptor group were found to be unreactive. Reductions of the benzisoxazoles gave ortho-aminobenzophenones in high yields. Their synthetic utility was demonstrated by condensation reactions with carbonyl compounds or amines to provide SF5-containing quinolines and quinazolines, respectively.

scholarly journals Synthesis and Spectroscopic Characterisation of Some Novel Butadienyl Asycyanine Colorants having Lepidine Moiety

2019 ◽  
pp. 1-6
Author(s):  
Yasir Sajjad ◽  
Ram Ekbal Yadav ◽  
I. Ali ◽  
A. S. Ansari
Keyword(s):  
Electron Donor ◽  
Electron Acceptor ◽  
Red Shift ◽  
Donor Group ◽  
Basic Catalyst ◽  
Visible Absorption ◽  
Catalytic Condensation ◽  
Phenyl Ketone ◽  
Spectroscopic Characterisation

Twenty-one novel chromophoric chain β-substituted butadienyl asycyanine colorants have been synthesized by catalytic condensation of (i) dimethylaminostyryl phenyl ketone, (ii) 4ʹ-dimethylaminostyryl-4ʹ-nitrophenyl ketone and (iii) 4ʹ-dimethylaminostyryl-4ʹ-methoxyphenyl ketone with seven lepidinium methyliodide salts in ethanolic DMF medium using piperidine as basic catalyst. These colorants were synthesized with the objective to study the effect of electron acceptor and electron donor group substituent at 4ʹ-position in the chain β-phenyl nucleus on visible absorption maxima. The newly prepared colorants were found to exhibit uniform increase in absorption maxima i.e. Red shift (RS), when collated with analogues having no substituent in the β-phenyl nucleus. Again the absorption maxima of the title colorants were found to be higher than the absorption maxima of previously prepared butadienyl colorants having quinoline mioety of same conjugated system.

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