2018年1月
Synthesis, crystal structure and photo physical properties of isomeric fluorinated s-shaped polyaromatic dibenzo[c,l]chrysene derivatives
JOURNAL OF MOLECULAR STRUCTURE
- ,
- ,
- ,
- ,
- ,
- 巻
- 1152
- 号
- 開始ページ
- 37
- 終了ページ
- 43
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1016/j.molstruc.2017.09.057
- 出版者・発行元
- ELSEVIER SCIENCE BV
Two s-shaped fluorinated isomeric polyaromatic dibenzo[c,l]chrysene derivatives have been synthesized by a two step process using the Wittig, Heck and iodine promoted cyclization reactions. These cyclized compounds were characterized by H-1 NMR and EI-MS. Further, absolute configurations of isomeric 4a and 4b were determined by X-ray diffraction analysis. Compound 4a crystallized under monoclinic system with space group P2(1)/c and compound 4b crystallized under monoclinic system with space group Cc. They have good solubility in common organic solvents such as dichloromethane, chloroform and THF. Photophysical properties of 4a and 4b were evaluated by using UV-Visible and Fluorescence spectrophotometer. Compounds 4a and 4b showed strong absorption maximum wavelength at 317 nm. The emission spectra of 4a and 4b displayed sharp peaks in the visible region from 417 to 441 nm. The shape of the UV-Visible and Fluorescence spectra of 4a and 4b looks almost identical. But compound 4a exhibited better fluorescence intensity than compound 4b. This difference may be due to the difference in the configuration of compounds 4a and 4b. (c) 2017 Elsevier B.V. All rights reserved.
- リンク情報
- ID情報
-
- DOI : 10.1016/j.molstruc.2017.09.057
- ISSN : 0022-2860
- eISSN : 1872-8014
- Web of Science ID : WOS:000415774400005