[1]张致慧,陈忱,陈群,等.吡啶甲基天冬氨酸钴的制备、结构及催化研究[J].常州大学学报(自然科学版),2016,(02):35-40.[doi:10.3969/j.issn.2095-0411.2016.02.007]
　ZHANG Zhihui,CHEN Chen,CHEN Qun,et al.Synthesis, Structures and Catalytic Activity of Cobalt(II) Complexes Based on Pyridylmethyl Aspartic Acid[J].Journal of Changzhou University(Natural Science Edition),2016,(02):35-40.[doi:10.3969/j.issn.2095-0411.2016.02.007]
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吡啶甲基天冬氨酸钴的制备、结构及催化研究()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2016年02期
页码:
35-40
栏目:
出版日期:
2016-03-30

文章信息/Info

Title:
Synthesis, Structures and Catalytic Activity of Cobalt(II) Complexes Based on Pyridylmethyl Aspartic Acid
作者:
张致慧; 陈忱; 陈群; 何明阳
常州大学 石油化工学院，江苏 常州 213164
Author(s):
ZHANG Zhihui;  CHEN Chen;  CHEN Qun;  HE Mingyang
School of Petrochemical Engineering， Changzhou University， Changzhou 213164， China
关键词:
亚砜; 硫醚; 氧化反应
Keywords:
sulfoxides;  sulfides;  oxidation
分类号:
O 621.3
DOI:
10.3969/j.issn.2095-0411.2016.02.007
文献标志码:
A
摘要:
以两种对映异构的N2吡啶甲基天冬氨酸（LH2pasp或DH2pasp）为配体分别与CoII盐反应，通过常温挥发的方法合成了两个配合物，分别为{［Co(Lpasp)2］·3H2O}n (1), {［Co(Dpasp)2］·3H2O}n (2), 晶体结构表明，配合物1和2均结晶于正交晶系P212121空间群，天冬氨酸衍生物配体L/Dpasp中一个羧酸根阴离子与吡啶N和氨基N采用三齿螯合的配位方式，而另一个羧酸根离子则表现为反常的游离模式，最终使1和2形成一对单核钴配合物对映异构体。催化活性研究表明两种化合物均对硫醚催化氧化具有较高的原料转化率和亚砜选择性。
Abstract:
Treatment of Cobalt(II) salts and N(2pyridylmethyl)aspartic acid (LH2pasp or DH2pasp) lead to two Coamino complexes, which were structurally characterized by Xray singlecrystal diffraction. Complexes 1 and 2 crystallize in the orthorhombic P212121 space groups, respectively. They demonstrated enantiotropic mononuclear coordination structures with one carboxylate of pasp ligand and two N atoms from pyridyl and amino groups coordinating to CoII ion in a tridentate mode. While another carboxylate exhibit a rare uncoordination mode. The connectivity finally induced 1 and 2 form a pair of mononuclear CoII complex enantiomers. The catalysis results showed that these complexes can act as stable heterogeneous catalysts for oxidation of sulfides to sulfoxides with high conversion and selectivity.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：20150831。基金项目：国家自然科学基金资助项目（21201026）。作者简介：张致慧（1980—），女，河南鹿邑人，博士，副教授，主要从事绿色催化研究。通讯联系人：何明阳（1962—），Email: hemingyangjpu@yahoo.com
更新日期/Last Update: 2016-03-20