acting as an equatorial ligand. For complex , intermolecular AA base pairing interaction is observed between N(6) and N(1) of adjacent adenines with N(6)N(1) of 3.027(7) A. A molecular dynamics simulation of the DNA binding of two complexes showed that the adenine moiety plays an important role in the intercalation of into DNA. This is verified by UV, fluorescence, circular dichroism and flow linear dichroism
两个新颖的
铜(ii)
吡啶吡啶络合物,[Cu(atpy)(NO(3))(H(2)O)](NO(3))。3H(2)O()和[Cu(ttpy)(NO (3))(2)]()(atpy = 4'-p-N9-
腺苷基甲基苯基-2,2':6,2''-叔
吡啶; ttpy = 4'-p-tolyl-2,2':6已经制备了2,2′-叔
吡啶),并通过X射线晶体学对其结构进行了表征。两种配合物在方形
金字塔(4 + 1)几何结构中显示CuN(3)O(2)配合物,其中
吡啶用作赤道
配体。对于复合物,观察到相邻
腺嘌呤的N(6)和N(1)之间的分子间
AA碱基配对相互作用,其中N(6)N(1)为3.027(7)A。两种复合物的DNA结合的分子动力学模拟结果表明,
腺嘌呤部分在插入DNA中起重要作用。这已通过UV,荧光,圆二色性和流动线性二色性研究得到验证。