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。
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.