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利用原料配合物[Co(acac)_3]和N-甲基和苯基取代乙二胺类配体在甲醇溶媒和活性炭的存在下进行反应,合成了一系列新的八面体型[Co(acac)_2L]~+(L=N-甲基和笨其取代乙二胺类配体,acac=2,4-戊二酮离子)配合物。本文合成的七种配合物的分离和纯化都是采用以SP—SephadcxC 阳离子交换树脂为填充剂的柱型色谱技术进行的。所有配合物的紫外可见吸收光谱的第吸收带都在16600-18300cm~(-1)范围,表明~1A_(1g)→T_(2g)(O_h)的跃迁。并对N-甲基和苯基取代乙二胺配体的配位场强度进行了研究。
A series of new octahedral [Co (acac) 3] complexes were synthesized by the reaction of raw material complexes [Co (acac) _3] and N-methyl and phenyl substituted ethylenediamine ligands in the presence of methanol and activated carbon ) _2L] ~ + (L = N-methyl and stupid substitution of ethylenediamine ligands, acac = 2,4-pentanedionate) complex. The seven complexes synthesized in this paper were isolated and purified by column chromatography using SP-SephadcxC cation exchange resin as a filler. The first absorption bands of UV-vis spectra of all the complexes are in the range of 16600-18300cm -1, indicating the transition of ~ 1A_ (1g) → T_ (2g) (O_h). The coordination field strength of N-methyl and phenyl substituted ethylenediamine ligands was also studied.