Synthesis and two-photon absorption property of phenylacetylene macrocycles
β Scribed by Ok Soon Pyun; Wenjun Yang; Mi-Yun Jeong; Sang Hae Lee; Kyung Min Kang; Seung-Joon Jeon; Bong Rae Cho
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- French
- Weight
- 172 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
The first synthesis of phenylacetylene macrocycle with large two-photon absorption cross section is reported.
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Two malononitrile derivatives, 2-[2,5-bis-(4-dimethylamino-benzylidene)-cyclopentylidene]-malononitrile (1) and 2-{2,6-bis-[2-(4dimethylamino-phenyl)-vinyl]-pyran-4-ylidene}-malononitrile (2), were synthesized and their photophysical characteristics were investigated using UV-vis spectra, fluorescen
Two-photon absorption (TPA) cross sections of an organic dye, trans-4-[p-(N -hydroxyethyl-N -methylamino) tyryl]-N -methylpyridinium iodide (abbreviated as ASPI), from 720 to 1100 nm have been measured by using nonlinear transmittance method, which re ect the TPA degrees of the dye at di erent wavel