报告题目：多孔骨架硫化学的发端和现状

报告内容：The story

is one of closing the gaps, i.e., the insulating gap in metal-organic

frameworks (MOFs), and the gap in the synthetic strategies for porous

metal-thiolate solids; both critically relevant to next-generation electronic

and catalytic materials. We recount the quest for recipes—the ones broadly effective for

tackling the intractable metal-sulfur link in both network construction and in

catalytic applications. In a simple, one-pot recipe, rigid, chelating aromatic

thiols directly react with metal ions to form porous frameworks. The resultant

metal-dithiolene nets inaugurate a class of covalent metal-organic frameworks

(CMOF) that not only feature versatile electroactive and ion-exchange capabilities,

but also bridge the two parallel fields of MOFs and porous polymers. In the

hard-and-soft design, carboxyl and sulfur groups make for a versatile, stepwise

approach: 1) hard ions like Zr(IV) selectively engages the carboxyl groups to

set up the host net; 2) the dangling thiol donors can then take up metal guests

to afford the metal-thiolate function which can be deployed either as

electroactive cross-links for closing up the insulating gap in the solid state

framework, or as solitary units with open metal sites for leach-free, bona fide

heterogeneous catalysis

报告人 ：徐政涛

（Zhengtao Xu）教授（香港城市大学）

报告时间：5月4日（星期一）上午10:00—11:30

报告地点：工三-208

欢迎广大师生参加！

专家简介：徐政涛教授，1996年毕业于北京大学获化学学士学位，1998年获得密西根州立大学(University of Michigan at Ann

Arbor)有机化学硕士学位，2001年获得康奈尔大学(Cornell

University)材料化学博士学位。2001-2003年在IBM研发中心从事博士后研究。2003-2005在美国乔治华盛顿大学任助理教授，2005-至今，先后任香港城市大学生物化学系助理教授、副教授、教授。其中2011-2013入选“洪堡学者”（Humboldt Research Fellowship for Experienced Researchers），在德国马普所从事研究工作。主持过美国化学会石油研究基金、香港政府研究基金多项（research grants from the Research Grant Council of the Hong Kong

government），总研究经费超过400万港币。研究兴趣主要包括新型多孔聚合物和金属有机框架的组装及其在传感、分离、催化和光电等领域的应用探索。近年来在JACS, Angew, Adv. Mater., Chem. Mater., Chem. Comm., Inorg. Chem.等国际著名期刊上发表高水平研究论文50多篇，总影响因子超过350，他引次数近800次，获得美国专利2项，在国际重要学术会议上应邀报告近50次。

学术论文：

1.“Tackling

Poison and Leach: Catalysis by Dangling Thiol-Palladium Functions within a

Porous Metal-Organic Solid”, B. Gui, K.-K. Yee, Y.-L. Wong, S.-M. Yiu, M.

Zeller, C. Wang*, Z. Xu*. Chem. Commun., 2015, DOI: 10.1039/c5cc00140d.

2.

“Extraction of Palladium from Nuclear Waste-like Acidic Solutions by a

Metal-Organic Framework with Sulfur and Alkene Functions”, M. Zha, J. Liu,

Y.-L. Wong, Z. Xu*. J. Mater. Chem. A, 2015, 3, 3928-3934.

3.“Pd

uptake and H2S sensing by an amphoteric metal-organic framework of soft core

and strong arms”, J. Cui, M. Zeller, A. D. Hunter, Z. Xu*. Angew. Chem. Int.

Ed. 2014, 53, 14438–14442.

4.

“Semiconducting Metal-Organic Frameworks”, Z. Xu*. a book chapter in

Metal-Organic Framework Materials, John Wiley & Sons, Ltd., 2014.

5.“Immobilization

of Volatile and Corrosive Iodine Monochloride (ICl) and I2 Reagents in a Stable

Metal-Organic Framework” J. He*, J. Duan, H. Shi, J. Huang, J. Huang, L. Yu, M.

Zeller, A. D. Hunter, and Z. Xu*. Inorg. Chem., 2014, 53, 6837–6843.

6.“An

Electroactive Porous Network from Covalent Metal-Dithiolene Links” J. Cui and

Z. Xu*. Chem. Commun., 2014, 50, 3986-3988.

7.“Selective

Ag(I) Binding, H2S Sensing and White-light Emission from an Easy-to-make Porous

Conjugated Polymer” J. Liu, K.-K. Yee, K.-W. Lo, Y. Zhang, W.-P. To, C.-M. Che,

and Z. Xu*. J. Am. Chem. Soc., 2014, 136, 2818.

8.“Convenient

detection of palladium by a metal-organic framework with sulfur and olefin

functions” J. He, M. Zha, J. Cui, M. Zeller, A. D. Hunter, S.-M. Yiu, S.-T.

Lee, Z. Xu*. J. Am. Chem. Soc., 2013, 135, 7807-7810.

9.“Effective

Mercury Sorption by Thiol-Laced Metal-organic Frameworks” K.-K. Yee, N. Reimer,

J. Liu, S.-Y. Cheng, S.-M. Yiu, J. Weber, N. Stock*, Z. Xu*. J. Am. Chem. Soc.,

2013, 135, 7795-7798.

10.

“White Light Emission and Second Harmonic Generation from Secondary Group

Participation (SGP) in a Coordination Network” J. He, Z. Xu*, M. Zeller, A. D.

Hunter. J. Am. Chem. Soc., 2012, 134, 1553−1559. This work was highlighted by

Nature Chemistry (2012, 4, 147).

11.“A

Semi-rigid Aromatic Sulfone-Carboxylate Building Block for Dynamic Coordination

Networks with Multiple Substitutions of the Ancillary Ligands” X.-P. Zhou, Z.

Xu*, M. Zeller, A. D. Hunter, Z. Guo, S. S.-Y. Chui, and C.-M. Che. Inorg. Chem.,

2011, 50, 7142–7149.

12.“Thioether

Side Chains Improve Stability, Fluorescence and Metal Uptake of a Metal-Organic

Framework” J. He, K.-K. Yee, Z. Xu*, M. Zeller, A. D. Hunter, S. S.-Y. Chui,

and C.-M. Che. Chem. Mater., 2011, 23, 2940–2947.

13.“Coordination

Networks from Cu Ions and Tetrakis(methylthio)benzenedicarboxylic Acid: Tunable

Bonding Patterns and Selective Sensing for NH3 Gas” X.-P. Zhou, Z. Xu*, M.

Zeller, A. D. Hunter, R. Clérac, C. Mathonière, S. S.-Y. Chui, C.-M. Che.

Inorg. Chem., 2010, 49, 10191–10198.

14.

“Reactions of H2S with AgCl within a Porous Coordination Network” X.-P. Zhou,

Z. Xu*, M. Zeller, A. D. Hunter, S. S.-Y. Chui, C.-M. Che. and J. Lin. Inorg.

Chem., 2010, 49, 7629–7631.

15.

“Metal-Based Photonic Coatings from Electrochemical Deposition” Tsang, C.-K.;

Xu, Z.; Li, Y. Y.* J. Electrochem. Soc., 2009, 156, D508.