四元螯环配合物稳定性质的研究Ⅰ再论螯环大小对螯合物稳定性质的影响

Studies on the Stability for Four─membered Ring Chelates I The Effect of Chelate Ring Size on the Stability of the Chelates

本文系统地研究了螯环大小对螯合物稳定性的影响。螯环存在着张力，张力是影响螯环稳定性的根本因素。螯环大小不是决定张力的唯一因素，金属半径和配位原子半径等也是影响张力的重要因素。

A systematic study on the effect of chelate ring size on the stability of thechelate is reported.Inside a chelate ring exists strain which is the fundamental factor to in-fluence its stability.The size of chelate ring is not the only factor to decide the strain,otherfactors such as radius of metallicion and that of coordinated atom are also important to itsstability.