Speaker：Prof. Haiping Xia Xi’an ，Southern University of Science and Technology

Invited by AISMST

Time：April 11, 2019 (Thursday) 15：30 p.m.

Venue: Lecture Room 324, AISMST (Building #2, KeJiYuan, North Campus)

Faculties and students are warmly welcome.

South China Advanced Institute for Soft Matter Science and Technology

                      School of Molecular Science and Engineering

April 11, 2019

Abstract:

The formation of metal-carbon bonds is a fundamental principle in organometallic chemistry. Construction of organometallics with more than two metal-carbon bonds remains challenge. Recently, we reported a novel organometallic complex, metallapentalyne, containing three metal-carbon σ bonds in the equatorial plane. Metallapentalyne formally consists of a seven-atoms carbon chain and a transition metal (M+7C). Thereafter, with the extension of this carbon chain (ranging from seven atoms to twelve atoms), a series of carbon-based polydentate organometallics (M+8C to M+12C) chelates containing four or five metal-carbon σ bonds were synthesized. For all of these complexes, the binding atoms, even the backbones, are carbon atoms. These carbon-based polydentate chelates are named as “carbolong complexes”. The metallapentalyne which contains aromatic spacer containing terminal alkyne group substituents can efficiently polymerize themselves into polycarbolong because of the highly reactivity of metal-carbon triple bond and terminal alkyne group. Insertion of transition metal elements into organic polymeric scaffolds enables a nice coupling of the intriguing physical traits of metal complexes. The properties of such polycarbolong need to be further studied.

Brief Biography：

Dr. Xia haiping is chair professor in department of chemistry at the Southern University of Science and Technology, winner of National Science Fund for Distinguished Young Scholars. And Huang Yao-Zeng organometallic chemistry award of the Chinese chemical society in 2016.

Professor Xia obtained his bachelor and doctor degree from Xiamen University in 1983 and 2002, respectively.  He started to work at Xiamen University in 1986 and was promoted to Associate Professor in 1991, and Professor in 1999.  Recently, Professor Xia joined Southern University of Science and Technology and now he is mainly engaged in the interdisciplinary research of inorganic, organic and polymer chemistry. 

He has published more than 200 scientifical papers, including more than 30 corresponding author papers published in Nat. Chem., Acc. Chem. Res., Nat. Commun., and his work are widely reported and highlighted by different news media such as Sciences, Science Shot, Science Daily, Nature Chemistry, Nature China, C&E News, Noteworthy Chemistry, Chemistry World.