for the first time. High‐fidelity 2:2 complexes were selected by using suitably sized organo substituents. Reversible and direct switching occurs with triflic acid and hydroxide base. An unexpected acid⋅⋅⋅anion heterodimer was discovered with weaker picric acid, which helped reveal some of the elementary steps. Switching can also proceed in a cooperative (strong anion then weak acid) or stepwise manner
首次研究了由有机
磷酸酯和
氰基星形大环化合物的抗静电阴离子-阴离子同二聚体形成的络合物的酸碱转换。通过使用适当大小的有机取代基选择高保真度2:2配合物。
三氟甲磺酸和氢氧化物碱发生可逆和直接的转换。发现了一种意想不到的酸···阴离子异二聚体和较弱的
苦味酸,这有助于揭示一些基本步骤。切换也可以协同作用(强阴离子然后弱酸)或逐步方式(弱酸然后强阴离子)进行。