Fluorescent macromolecular perylene diimides containing pyrene or indole units in bay positions
| dc.contributor.author | Dinçalp H. | |
| dc.contributor.author | Kizilok S. | |
| dc.contributor.author | Içli S. | |
| dc.date.accessioned | 2025-04-10T11:15:46Z | |
| dc.date.available | 2025-04-10T11:15:46Z | |
| dc.date.issued | 2010 | |
| dc.description.abstract | Novel, symmetric and unsymmetric perylene diimide dyes with pyrene or indole units in the bay positions of the perylene ring were synthesized and characterized using FT-IR, 1H and 13C NMR, MS, UV-Vis spectra and cyclic voltammetry. The λmax in different solvents were in the range 526-585 nm and emission wavelengths of the dyes exhibited positive solvatochromism with increasing solvent polarity. Long wavelength emissions >750 nm of dyes with pyrene units displayed charge-separated state of perylene-pyrene system. Dyes with pyrene or indole units showed greater photostability in toluene than dyes which did not contain these bulky substituents. Incorporating electron-donating indole substituents lowered the band gap energies and, therefore, the HOMO energy levels were increased. The energy density and shape of the molecular orbitals were calculated theoretically. © 2009 Elsevier Ltd. All rights reserved. | |
| dc.identifier.DOI-ID | 10.1016/j.dyepig.2009.11.005 | |
| dc.identifier.uri | http://hdl.handle.net/20.500.14701/51283 | |
| dc.title | Fluorescent macromolecular perylene diimides containing pyrene or indole units in bay positions | |
| dc.type | Article |