轴向配体的碱性对Co(SBMe)双氧加合物和Cu(SBPh)结构影响的ESR研究  

STUDY ON BASICITY OF AXIAL LIGANDS EFFECTS ON MONOMERIC DIOXYGEN ADDUCT OF COBALT(Ⅱ) SCHIFF BASE COMPLEX BY ESR METHOD

作　　者：徐皓[1] 徐正[1] 李明星[1] 李宝龙[1] 钱钺[1] 游效曾[1] 朱多林[2] 俞运鹏[2] 

机构地区：[1]南京大学配位化学研究所配位化学国家重点实验室,南京210008 [2]镇江师范专科学校,镇江212003

出　　处：《无机化学学报》1993年第4期331-335,共5页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金资助项目

摘　　要：用希夫碱钴(Ⅱ)和铜(Ⅱ)配合物作为模型化合物,系统地研究了轴向配体的碱性对模型化合物ESR参数的影响.实验发现,钴(Ⅱ)配合物的|A|张量随轴向配体碱性的增加而减小,而铜(Ⅱ)配合物的|A|张量正好相反.用π反馈作用解释了这一现象.Complex of cobalt and copper with Schiff base are prepared as model compound. And systematic study has been done on the influence of axial ligands' basicities on the ESR parameters of model compounds. Linear relationships between A tensors and basicities of ligands have been found in both compounds, but with different trend. With the increase of basicities, the values of |A | tensor decrease in the complex of cobalt while in the compound of copper, the values increase. The former was attributed to the strengthening of π-back donation, which does not exist in the latter.

关 键 词：双氧加合物 钴配合物 ESR 

分 类 号：O614.812[理学—无机化学]