کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1364334 | 981535 | 2008 | 4 صفحه PDF | دانلود رایگان |
The 3-acetyl groups of synthetic methyl pyropheophorbides were rotated around the 3–31 bond and the rotational conformers were obtained in a dichloromethane solution of 20-bromo- and methyl-substituted compounds, based on their electronic and vibrational absorption spectra. Such a rotational deviation of the 3-acetyl group from the cyclic tetrapyrrole plane induced less π-conjugation to affect the redmost Qy band, which has been observed in natural photosynthetic antenna systems, bacteriochlorophyll-a molecules in oligopeptides.
The 3-acetyl group of synthetic methyl pyropheophorbides was rotated around the 3–31 bond and the rotational conformers were obtained by 20-bromination and methylation, which affected the redmost Qy band.Figure optionsDownload as PowerPoint slide
Journal: Bioorganic & Medicinal Chemistry Letters - Volume 18, Issue 23, 1 December 2008, Pages 6037–6040