【摘 要】
：
A series of seven novel lanthanide(Ⅲ) nitrato complexes with 4-[N-(2-methoxybenzylimine)formyl]l-2, 3-dimethyl-1-phenyl-3-pyazolin-5-one (2mbfa), were synthesi
【机 构】
：
Department of Chemistry
论文部分内容阅读
A series of seven novel lanthanide(Ⅲ) nitrato complexes with 4-[N-(2-methoxybenzylimine)formyl]l-2, 3-dimethyl-1-phenyl-3-pyazolin-5-one (2mbfa), were synthesized.These complexes were characterized by elemental analysis, molecular mass determination, conductance and magnetic moment measurements, IR, UV-visible, and 13CNMR spectral studies.In these complexes, the Schiff base, 2mbfa, acts as neutral bidentate ligand by utilizing the carbonyl oxygen and azomethine nitrogen as donor sites.All the three nitrate ions are also coordinated unidentately with 7 coordination for the lanthanide(Ⅲ) ions with a tentative monocapped octahedral geometry for the complexes.All the seven lanthanide(Ⅲ) complexes have a general formula, [Ln(2mbfa)2(NO3)3].
其他文献
目的:介绍利用Markov模型对肺结核干预措施进行卫生经济学评价的基本思路。方法:用Markov模型中肺结核各状态的转移概率,评价肺结核干预措施的成本效用,将具有吸收状态的转移
确立城市社区卫生服务可持续发展的理念,不仅是我国城市社区卫生服务发展模式的选择,也是正确审视现阶段我国城市社区卫生服务发展状况、研究城市社区卫生服务发展后劲、把脉
为了满足医疗消费市场中人们特殊形式的付款方式,我院采用医疗消费卡的形式进行医疗服务的结算,并取得了一定效果。1医疗消费卡产生的背景1.1病人的需求
In order to meet t
科技进步、产业结构、能源效率之闻存在着相互影响的关系.文章对大连市的能源生产结构转换、能源消费方式转轨等进行了阐述,并从能耗率与科技进步、产业结构的关系角度,应用
On the basis of the velocity field results of horizontal crustal movement obtained from GPS measurements during the periods of 1993～1999, 1999～2001 and 2001～2003 i
The influence of different concentrations of copper solvent extractant ZJ 988 on the growth and activity of acidophilic microorganisms was studied and the micro
Carbothermal reduction was performed at temperatures up to 1600℃ for vanadium-bearing titanomagnetite, ilmenite concentrate, and high titania slag. The possibi
The microstrueturai features and grain refinement in the coarse-grained region of the heat-affected zone in low-carbon high-strength micro,alloyed steels were i