3-diamino-2-(aminomethyl)propane (daap) results in cobalt(III)-pentamine complexes with obligate configuration. Optimization of the synthesis of [(en)(daap)Co] 2 O 2 4+ suggests that daap must undergo conformational change for complete coordination. Ultraviolet and visible spectra of [(en)(daap)Co] 2 O 2 4+ , [(en)(daap)Co] 2 O 2 5+ , [Co(daap)(enOH] 2+ , and Co-(daap)(en)H 2 O] 3+ are consistent with
摘要使用乙二胺(en)和三脚架配体1,3-二氨基-2-(氨基甲基)丙烷(daap)可以形成专一的钴(III)-五胺配合物。[(en)(daap)Co] 2 O 2 4+的合成优化表明,daap必须经历构象变化才能完全协调。[(en)(daap)Co] 2 O 2 4+,[(en(daap)Co] 2 O 2 5+,[Co(daap)(enOH] 2+和Co-( daap)(en)H 2 O] 3+与类似配合物一致[[en](daap)Co] 2 O 2 4+和顺磁性[[en](daap)Co] 2 O的NMR谱观察到并分配了2 5+,在各种离子强度下均获得了阳离子[Co(daap)(en)H 2 O] 3+的水溶液酸度。