Planar-Chiral Through-Space Conjugated Oligomers: Synthesis and Characterization of Chiroptical Properties

2014 ◽  
Vol 20 (27) ◽  
pp. 8386-8390 ◽  
Author(s):  
Yasuhiro Morisaki ◽  
Kenichi Inoshita ◽  
Yoshiki Chujo
Keyword(s):  
Synthesis And Characterization ◽  
Conjugated Oligomers ◽  
Chiroptical Properties

Conjugated oligomers incorporating azulene building blocks – seven- vs. five-membered ring connectivity

2014 ◽  
Vol 5 (11) ◽  
pp. 4483-4489 ◽  
Author(s):  
Elizabeth Amir ◽  
Masahito Murai ◽  
Roey J. Amir ◽  
John S. Cowart ◽  
Michael L. Chabinyc ◽  
...  
Keyword(s):  
Building Blocks ◽  
Membered Ring ◽  
Synthesis And Characterization ◽  
Conjugated Oligomers

The properties of isomeric azulene derivatives based on 7- versus 5-membered ring substitution were examined by the synthesis and characterization of well-defined electroactive oligomers.

Synthesis and Characterization of Chiral Conducting Polymers Based on Polypyrrole

1997 ◽  
Vol 50 (9) ◽  
pp. 939 ◽  
Author(s):  
Fang Chen ◽  
Parveen Akhtar ◽  
Leon A. P. Kane-Maguire ◽  
Gordon G. Wallace
Keyword(s):  
Conducting Polymers ◽  
Propionic Acid ◽  
Spectroscopic Properties ◽  
Optically Active ◽  
Synthesis And Characterization ◽  
Chiroptical Properties ◽  
Covalently Bonded ◽  
Circular Dichroïsm ◽  
Ring Position

A range of optically active pyrrole monomers have been synthesized in which a chiral sub- stituent is covalently bonded either to the pyrrole N or C3 ring position, namely (–)-(1R)-4-methyl-N-(1-phenylethyl)pyrrole-3-carboxamide, (+)-(1S)-4-methyl-N-(1-phenylethyl)pyrrole-3-carboxamide, (–)-(1R)-4-methyl-N-(1-naphthylethyl)pyrrole-3-carboxamide, (+)-(1S)-4-methyl-N-(1-naphthylethyl)pyrrole-3-carboxamide, (+)-(2S)-2-(1H-pyrrol-1-yl)propionic acid, (+)-(1S)-N-(1-phenyl-ethyl)pyrrole, and (–)-(1R)-N-(1-phenylethyl)pyrrole. Their chiroptical properties have been established by circular dichroism spectroscopy. Electropolymerization of the three N-substituted pyrrole monomers provided films of chiral conducting polymers, whose electrical and spectroscopic properties are described. Although oxidation of the C3 substituted pyrrole monomers was also facile, electrodeposition was poor and films of the associated polymers could not be obtained.

Synthesis and characterization of soluble low-bandgap oligothiophene-[all]-S,S -dioxides-based conjugated oligomers and polymers

2011 ◽  
Vol 49 (9) ◽  
pp. 1933-1941 ◽  
Author(s):  
Elizabeth Amir ◽  
Kulandaivelu Sivanandan ◽  
Justin E. Cochran ◽  
John J. Cowart ◽  
Sung-Yu Ku ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
Conjugated Oligomers ◽  
Low Bandgap

Synthesis and characterization of π-conjugated oligomers that contain metal-to-ligand charge transfer chromophores†

1999 ◽  
pp. 1749-1750 ◽  
Author(s):  
Kevin D. Ley ◽  
Yiting Li ◽  
Jodie V. Johnson ◽  
David H. Powell ◽  
Kirk S. Schanze
Keyword(s):  
Charge Transfer ◽  
Synthesis And Characterization ◽  
Conjugated Oligomers ◽  
Ligand Charge Transfer

Synthesis and characterization of bis(dithiafulvenyl)-substituted fluorenones and fluorenylidene-1,3-dithioles

2020 ◽  
Vol 44 (22) ◽  
pp. 9179-9189
Author(s):  
Fatemeh Salami ◽  
Yuming Zhao
Keyword(s):  
Electrochemical Properties ◽  
Synthesis And Characterization ◽  
Conjugated Oligomers ◽  
Redox Active ◽  
End Groups

A series of π-conjugated oligomers containing redox-active dithiafulvenyl (DTF) end groups and fluorenone/fluorenylidene-1,3-dithiole central units was synthesized and their structural, electronic, and electrochemical properties were investigated.

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