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Thymine and adenine derivatives with pyrene, tetrathiafulvalene and nitronyl nitroxide units: Synthesis and formation of ensembles sensing thymine and adenine molecules
  • 时间:0
  • 分类:Q51[生物学—生物化学]
  • 作者机构:[1]Center for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China, [2]Department of Chemistry, University of Sciences and Technology of China, Hefei 200026, China, [3]Graduate School of Chinese Academy of Sciences, Beijing 100080, China
  • 相关基金:Acknowledgements This work was supported by the National Natural Science Foundation of China (Grant Nos. 20421101 and 90501003 ), Chinese Academy of Sciences and the National Science Fund for Distinguished Young Scholars (Grant No. 202225207).
中文摘要:

有分核的四胸腺嘧啶(T) 和腺嘌(A) 衍生物, tetrathiafulvaleneand nitronyl nitroxide 单位(1, 2, 3 和 4 ) 被综合并且描绘。Fluorescentspectral 研究显示相应 T 和 A 衍生物能与 ca 的协会常数形成整体。10 ~ 4 L/mol。1 和 2 的整体显示出分核 exci 我排放,当 1/3 和 2/4 的由于“ intramolecular ”显示弱荧光时 photoinducedelectron 转移反应。增加加重 5 或 6,分别地,它在前 cimer 排放和分核荧光的改进的减小是 T 和 A 衍生物到 1/2, 1/3 和 2/4 结果的整体。这些结果证明这些整体能察觉到 T 和 A 分子。

英文摘要:

Four thymine (T) and adenine (A) derivatives with pyrene, tetrathiafulvalene and nitronyl nitroxide units (1, 2, :3 and 4) were synthesized and characterized. Fluorescent spectral studies indicate that the corresponding T and A derivatives can form ensembles with the association constant of ca. 104 L/tool. The ensemble of 1 and 2 shows pyrene excimer emission, while that of 1/:3 and 2/4 displays rather weak fluorescence due to the "intramolecular" photoinduced electron transfer reactions. Addition of compounds 5 or 6, which is T and A derivatives, respectively, to the ensembles of 1/2, 1/:3 and 2/4 resuits in reduction of excimer emission and enhancement of pyrene fluorescence. These results show that these ensembles are able to sense T and A molecules.

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