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Symmetry restoration and quantum Mpemba effects in chaotic andlocalization sy...
Quantum Gases 2024
Stories of Fermions in an Optical Box
Contractive Unitary and Classical Shadow Tomography
报告题目:
Supramolecular Nanotechnology of Block Copolymers and Metal Carbonyls
 报告人:
Prof. Xiaosong Wang (王晓松教授)
Department of Chemistry
Waterloo Institute for Nanotechnology
University of Waterloo, Canada
加拿大滑铁卢大学
报告时间:
2015-07-17 10:00
报告地点:
化学馆301会议室
主办单位:
化学系袁金颖课题组
  简介:
Abstract:
Supramolecular nanotechnology aims to develop non-covalent synthetic techniques for functional nanomaterials. Substantial knowledge has been created in recent years, it is therefore crucial to develop ideas on how to use this established knowledge. With this perspective, we have made effort, by using developed block copolymer assemblies, to address a number of important scientific questions, e.g. whether C60 is toxic? Whether nucleation and growth of metal atoms can be manipulated? Whether nanoassembles can be precisely prepared? We also developed a technique, building on well-developed emulsion chemistry, for controlled synthesis of metal coordination nanoparticle. On the other hand, several challenges encountered in the field cannot be resolved without developing new knowledge. One of these challenges is how to self-assemble hydrophobic molecules into uniform vesicles in water. We have resolved this issue via the discovery of hydration-driven self-assembly of metal carbonyls. The resultant metal carbonyl assemblies possess a range of novel properties, e.g aggregation-induced self-enhanced IR spectroscopy and unusual encapsulation behaviour, which represent a new group of materials for nanotechnology.
 
References
1.      Lanigan, N.; Assoud, A.; Wang, X. S. Intermolecular Interactions of CpFePPh3(CO)CO(CH2)5CH3: From a Crystalline Solid to a Supramolecular “Iron-Truss” Polymer. ACS Macro Lett., 2014, 3, 1281–1285.
2.      Wang, X. S.; Cao, K.; Liu, Y. B.; Tsang B, Liew S. Migration insertion polymerization (MIP) of cyclopentadienyldicarbonyldiphenylphosphinopropyliron (FpP): a new concept for main chain metal-containing polymers (MCPs), J. Am. Chem. Soc. 2013, 135, 3399-3402. 
3.      Liang, G. D.; Xu, J. T.; Wang, X. S. Synthesis and characterization of organometallic coordination polymer nanoshells of Prussian blue using miniemulsion periphery polymerization (MEPP) J. Am. Chem. Soc. 2009, 131 (15), 5378–5379.
4.      Wang, X. S.; Guerin, G.; Wang, H.; Wang, Y. S.; Manners, I.; Winnik, M. A. Formation of cylindrical block copolymer micelles and co-micelles of controlled length and architecture, Science 2007, 317, 644-647.
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