University of PardubiceFaculty of Chemical Technology

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Dicyano-Substituted Acceptor Units in Push-Pull Chromophores featuring Intramolecular Charge-Transfer

Authors: Ludwig Miroslav | Bureš Filip

Year: 2013

Type of publication: ostatní - přednáška nebo poster

Page from-to: nestránkováno

Titles:

Language	Name	Abstract	Keywords
eng	Dicyano-Substituted Acceptor Units in Push-Pull Chromophores featuring Intramolecular Charge-Transfer	Nowadays, organic p-conjugated molecules, end-capped with electron donors and acceptors, represent extensively investigated area of organic chemistry. Due to their unique structure and properties, they become widely applied in branches such as physics, chemistry, material sciences, engineering, biology etc. Dicyano-substituted acceptor units such as dicyanovinyl (DCV), dicyanoimidazole (DCI), and dicyanopyrazine (DCP) and their employment in charge-transfer chromophores will be discussed. Recent contribution to the synthesis, characterization and application of such push-pull compounds in nonlinear optics and optoelectronics will be evaluated. These moieties, in combination with suitable electron-donors and p-conjugated systems, proved to generate highly polarized D-p-A molecules of various shapes and arrangements. The fine-tuning of NLO properties has been accomplished by the variation of electronic behavior and number of appended donors, the length and composition of the p-linker, and chromophore overall planarity.	Cyano; Acceptor units; Push-Pull Chromophores; Intramolecular Charge-Transfer