chelate ring. The group of the hydrogen malonate ion appeared as a sharp singlet at 2.95 ppm and integration showed the presence of two bimalonate groups. The reactive methylene protons were found to be exchangeable. Ion association by counter ions of the complex ion in DMSO-d6 showed no preference among amino protons. This is as expected for trans complexes with D2h-symmetry.
的反式- [CO(烯)2(MAlH)2 ] CLO 4 ·H 2 O的制备由
钠氢
丙二酸的反应用[CO(烯)复合物2(H 2 ö 2 ](CLO 4)3在存在高浓度
高氯酸根离子,显示出三波段可见光谱(最大γ357、448和542.6 nm),对反式-MA 4 B 2系统进行了诊断,并给出了反式-双
乙二胺所预期的特征性IR谱带
钴(III)配合物在
DMSO-中的1 H NMR光谱d 6揭示了可分配给
氨基氢的5.8 ppm宽谱带和螯合环的亚乙基的2.68单个谱带。
丙二酸氢根离子的基团在2.95 ppm处显示为尖锐的单峰,并且积分显示存在两个比马龙酸酯基团。发现反应性亚甲基质子是可交换的。
DMSO- d 6中复合离子的抗衡离子与离子缔合没有显示出
氨基质子之间的偏爱。如具有D 2 h对称性的反式配合物所预期的。