【摘要】 在不同ｐＨ条件下以Ｎ－烷基亚胺二乙酸［Ｒ－Ｎ（ＣＨ２ＣＯＯＨ）２，Ｒ＝Ｍｅ，ｉ－Ｐｒ，ｎ－Ｐｒ，ＨＯ—Ｅｔ］为配体合成了一系列二氨铂（Ⅱ）类配合物．１３ＣＮＭＲ（２０ＭＨｚ）研究结果表明该类配体均以Ｎ、Ｏ与铂配位，配位方式不随合成时ｐＨ值的改变而改变，在弱酸条件下，配合物处于交换平衡状态．平衡常数由不同ｐＨ下未配位羧基碳的化学位移计算而得．更多还原

【Abstract】 A series of N-alkyl iminodiacetato (diammine) Platinum (Ⅱ) complexes [Pt(NH3)2(R- N(CH2COO)2], R= Me, i-Pr, n - Pr, HO- Et] have been synthesized under different pH conditions.The results of 13C NMR study (20MHz) show that the iminodiacetate ligands are coordinated to platinum through N, O linkages, which doesn’t change with pH value. Under soft acidity, these complexes exist in exchange equilibrium states. The equilibrium constant was calculated based on the 13C chemical shifts.更多还原