کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5375088 | 1504285 | 2010 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Stark absorption spectroscopy of peridinin and allene-modified analogues
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Stark absorption spectroscopy of peridinin and allene-modified analogues Stark absorption spectroscopy of peridinin and allene-modified analogues](/preview/png/5375088.png)
چکیده انگلیسی
Stark absorption spectra of peridinin (Per) and five allene-modified analogues and their angular dependence as a function of an externally applied electric field were measured in methyl methacrylate polymer at 77 K. In all cases, the energetically lowest absorption band has a significant change of static dipole-moment upon photoexcitation (Îμ). In particular, Per has the largest value of |Îμ|. The angles between Îμ and the transition dipole-moment of all the analogues were determined. It is suggested that the allene group in Per plays a key role as the electron donor in the charge transfer process following photoexcitation. The results of MNDO-PSDCI calculations support this idea.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Physics - Volume 373, Issues 1â2, 19 July 2010, Pages 71-79
Journal: Chemical Physics - Volume 373, Issues 1â2, 19 July 2010, Pages 71-79
نویسندگان
Toshiyuki Kusumoto, Tomoko Horibe, Takayuki Kajikawa, Shinji Hasegawa, Takashi Iwashita, Richard J. Cogdell, Robert R. Birge, Harry A. Frank, Shigeo Katsumura, Hideki Hashimoto,