6-dihydroxybenzoate). By reference to earlier, X-ray determined structures of related, but non-fluorescent, inclusion complexes the primary anion retention force is known to arise from hydrogen bonding between the anion and four convergent hydroxy groups that exist at the base of a cavity that develops in L11 and L22 as their aromatic groups juxtapose upon metal ion coordination. This work reveals significant
两个新的八齿荧光大环
配体, 1-(2-(9-
蒽甲基
氨基)乙基)-4,7,10-三((2 S)-2-羟基-3-苯氧基丙基)-1,4,7,10-四
氮杂环十二烷(L 1 1)和1-(2-(9-
蒽甲基
氨基)乙基)-4,7,10-三((2 S)-2-羟基-3- [4'-(甲基)苯氧基]丙基)-制备了1,4,7,10-四
氮杂环十二烷(L 2 2),以用于研究螯合芳香族阴离子。L 1 1和L 2 2,[Cd L 1 1 ](ClO 4)2 ·2H 2 O和[Cd L 2 2 ](ClO 4)2 ·4H 2的八坐标Cd(II)配合物O,都被证明能够充当一系列芳香族化合物的受体 含
氧阴离子。两者的摄动都证明了这一点。1 H NMR
化学位移值和
蒽作为潜在的客体阴离子和受体结合得到的荧光发射强度。所得滴定曲线的非线性最小二乘回归分析可确定20%
水溶液中的结合常数1,4-
二恶烷其在10 2.3 M -1(
苯甲酸酯)至10