搜索:     

    点击:7351


陈学太,教授
 

Email: xtchen@netra.nju.edu.cn

Tel: 025-83597147

陈学太 教授

Prof. Xue-Tai Chen

2003-present                Professor, Nanjing University

1999-2003                    Associate Professor, Nanjing University

1997-1998                    Postdoctoral Associate, Ruhr University, Germany

1994-1997                    Ph. D. in Inorganic Chemistry, the University of Sheffield, U. K.

1989-1994                    Research Associate, Fujian Institute of Research on the Structure of Matter, Chinese Academy of

                                     Sciences

1986-1989                    MSc. in Physical Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese

Academy of Sciences

1981-1986                    BSc. in Geochemistry, the University of Science and Technology of China

         陈学太   教授,博士生导师。1986年获中国科技大学学士学位。 1989年获中国科学院福建物质结构研究所硕士学位。1989年-1994年在中国科学院福建物质结构研究所工作,任实习研究员(19891992年),助理研究员(19921994年),研究方向为金属硫(氧)配合物的合成与结构。1997年在英国谢菲尔德(Sheffield)大学攻读博士学位,研究方向为金属羰基配合物的溶液动态结构。19971998年在德国鲁尔(Ruhr)大学做博士后(德国洪堡基金资助)1999-2003年任南京大学化学化工学院副教授,2003年任教授,2004年任博士生导师。研究方向为卡宾金属配合物化学,分子磁性材料和金属氧化物纳米材料。

Research Interests

Transition Metal Complexes of N-heterocyclic Carbenes

N-heterocyclic carbenes (NHCs) have come to occupy a central position in the armory of organometallic chemists since the first isolation of imidazole-2-ylidene by Arduengo and co-workers. The most of research effort has been focused on the metal complexes with mono-N-heterocyclic carbenes. Recently bidentate or polydentate NHC-containing ligands have been designed and used in the preparation of new organometallic complexes with novel structures and catalytic properties. The research in our group include design, synthesis and reactivities of transition metal complexes with bis-N-heterocyclic carbenes, functionalized N-heterocyclic carbenes with another donor atoms, tripodal tris(N-heterocyclic carbenes) and macrocyclic N-heterocyclic carbenes. Several interesting results have been obtained. For example, we have revealed unexpected fluorination of the BH2 moiety during iridium(I) and rhodium(I) carbonyl complexes with the bis(3-tert-butylimidazol-2-ylidene)borate and [Cp2Fe]PF6. An unusual ring opening of one of the triazoyl rings was observed in the reaction of FeCl2 or CoCl2 with a bistriazolium salt, yielding Fe(III) and Co(III)-NHC complexes with the formation of C,N,O tridentate ligands.

We are working with the metal complexes with two important poly(N-heterocyclic carbenes) ligands, poly(N-heterocyclic carbenes)borate and macrocyclic N-heterocyclic carbenes.

Magnetic Molecular Materials

Single-molecule magnets (SMMs) have been extensively studied in the past two decades due to the slow magnetic relaxation and quantum tunneling phenomenon and their potential applications in magnetic information storage, quantum computation and molecular spintronics. The most reported single molecular magnets are those magnetic clusters constructed with several 3d metal ions. Recently mononuclear 4f, 5f and 3d metal complexes have been demonstrated to behave as SMMs (called as single ion magnets (SIMs)), which include MnIII, FeI, FeII, FeIII, CoII, NiI, and ReIV mononuclear complexes. It has been demonstrated the coordination geometry should have important influences on the magnetic properties of these SIMs. We have observed the slow magnetization relaxation in several Co(II) complexes with different coordination number and configurations. We are attempting to reveal the relationship between the magnetic properties and the coordination environments especially in those metal complexes with high coordination numbers. In collaboration with Prof. Zi-Ling Xue, University of Tennessee at Knoxville, USA, we are using inelastic neutron scattering (INS) to determine zero-field splitting parameters and the electronic structures of these SIMs and related magnetic molecular materials.

Metal Oxide Nanomaterials

Over the past decade, synthesis of metal oxides micro/nanostructures with well-defined size and morphology have attracted extensive attention due to their unique properties and potential applications. Our research is concentrated on the synthesis of ternary metal oxides using the hydro(solvo)thermal routes with or without the assistance of microwave irradiation. In the past several years, some simple and effective synthetic approaches have been developed to prepare metal germinate, metal molybdates, and Bi-containing oxides with hierarchical structures. Their photocatalytic activities for the degradation of organic pollutants were studied. More recently we have controllably prepared CuGeO3 nanorods with different sizes. Our magnetic investigations show that the spin-Peierls transition can be quenched when the size of the CuGeO3 nanorods is small, giving a unique example of the dependence of physical properties of a solid on its sizes.

Selected Publications

1.   Blue-green luminescent rhenium(I) tricarbonyl complexes with pyridine-functionalized N-heterocyclic carbene ligands, Xiao-Wei Li, Hong-Yan Li, Gao-Feng Wang, Fei Chen, Yi-Zhi Li, Xue-Tai Chen,* You-Xuan Zheng* and Zi-Ling Xue, Organometallics, 2012, 31, 3829–3835.

2.   Formation of stable iron/cobalt NHC complexes via unexpected ring opening and in situ generation of a tridentate ligand, Gao-Feng Wang, Xiao-Jiao Song, Fei Chen, Yi-Zhi Li, Xue-Tai Chen* and Zi-Ling Xue*, Dalton Trans., 2012, 41, 10919–10922.

3.   Iridium(I) and rhodium(I) carbonyl complexes with the bis(3-tert-butylimidazol-2-ylidene)borate ligand and the unusual B-H fluorination, Fei Chen, Jia-Feng Sun, Tao-Yuan Li, Xue-Tai Chen*, and Zi-Ling Xue, Organometallics, 2011, 30, 2006–2011.

4.   Microwave-assisted preparation and photocatalytic properties of Zn2GeO4 nanorod bundles, Lei Zhang, Xiao-Feng Cao, Ying-Li Ma, Xue-Tai Chen* and Zi-Ling Xue, CrystEngComm, 2010, 12, 3201–3206.

5.   Syntheses, structures, and catalytic properties of ruthenium(II) nitrosyl complexes with pyridine-functionalized N-heterocyclic carbenes, Yong Cheng, Jia-Feng Sun, Hong-Ling Yang, Hui-Jun Xu, Yi-Zhi Li, Xue-Tai Chen*, and Zi-Ling Xue, Organometallics, 2009, 28, 819-823.

6.   Preparation, characterization and catalytic properties of ruthenium(II) nitrosyl complexes with α-diimine ligands, Hui-Jun Xu, Xiang-Yong Lu, Yong Cheng, Jia-Feng Sun, Xue-Tai Chen* and Zi-Ling Xue, Organometallics, 2009, 28, 6687–6694.



配位化学国家重点实验室  版权所有  © 2007-2019 All Rights Reserved

总访问量: 02258297