Journal
ORGANIC & BIOMOLECULAR CHEMISTRY
Volume 12, Issue 29, Pages 5517-5527Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ob00901k
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Funding
- Czech Science Foundation [P106/12/0392]
- Balassi Institute
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A series of novel X-shaped push-pull compounds based on benzene-1,2-dicarbonitrile has been designed, synthesized and further investigated by X-ray analysis, electrochemistry, absorption and emission spectra, SHG experiment and quantum-chemical calculations. The obtained data were compared with those for isolobal 5,6-disubstituted pyrazine-2,3-dicarbonitriles. Structure-property relationships were elucidated. The extension, composition and planarization of the pi-linker used as well as the electron-withdrawing ability of both dicyano-substituted acceptor units affect the linear and nonlinear properties of the target charge-transfer chromophores most significantly.
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