Scientists Reveal Controllable Assembly System Based on Discrete Metallocages
Apr 10, 2014 Email"> PrintText Size
Using coordination bonds to construct artificial assemblies not only can help people to understand the complex self-assembly process in natural systems but also provides a method for preparing molecule based materials with excellent character. Coordination-driven metal mediated self-assembly has attracted considerable attention, and many metallosupramolecular assemblies have been prepared. However, how to realize controllable assembly is still a big challenge.
The research group headed by Prof. HONG Maochun at Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, has developed a controllable assembly system based on discrete Ag6L4 metallocages (which can be in situ assembled, Chem. Commun., 2013, 49, 719-721), where the Ag6L4 cages can not only effectively assemble into a polycatenane containing multiple mechanical bonds in their supersaturated (CH3OH-CHCl3) solution in a kinetically-controlled way, but can also be directly linked into a highly ordered polycage in the unsaturated solution through a thermodynamically-controlled assembly process.
Moreover, the transformation of the kinetic product into the thermodynamic product is also smooth, which represents the first transformation of multiple mechanical bonds. This result has been published as an edge article in Chemical Science (Chem. Sci., 2014, 5, 483-488).
In addition, a novel metal-organic framework with four different metallocages has been prepared by Prof. HONG’s group, which may provide a new strategy for synthesizing more complex metal-organic assemblies, this result has been published in Chemical Communications (Chem. Commun., 2014, 50, 1678-1681). While another metal-organic framework with different metallocage units has also been prepared, which has excellent H2 storage capacity, and the result has also been published in Chemical Communications (Chem. Commun., 2014, 50, 2834-2836).
Over the past few years, Prof. HONG's group has reported series of supramolecular assemblies based on discrete metallocages. (Chem. Sci., 2012, 3, 2321-2325.; Chem. Commun., 2011, 47, 9861-9863.; Chem. Commun., 2011, 47, 2327-2329; Chem. Eur. J., 2013, 19, 468-472; Chem. Eur. J., 2011, 17, 2189-2198).
Using coordination bonds to construct artificial assemblies not only can help people to understand the complex self-assembly process in natural systems but also provides a method for preparing molecule based materials with excellent character. Coordination-driven metal mediated self-assembly has attracted considerable attention, and many metallosupramolecular assemblies have been prepared. However, how to realize controllable assembly is still a big challenge.
The research group headed by Prof. HONG Maochun at Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, has developed a controllable assembly system based on discrete Ag6L4 metallocages (which can be in situ assembled, Chem. Commun., 2013, 49, 719-721), where the Ag6L4 cages can not only effectively assemble into a polycatenane containing multiple mechanical bonds in their supersaturated (CH3OH-CHCl3) solution in a kinetically-controlled way, but can also be directly linked into a highly ordered polycage in the unsaturated solution through a thermodynamically-controlled assembly process.
Moreover, the transformation of the kinetic product into the thermodynamic product is also smooth, which represents the first transformation of multiple mechanical bonds. This result has been published as an edge article in Chemical Science (Chem. Sci., 2014, 5, 483-488).
In addition, a novel metal-organic framework with four different metallocages has been prepared by Prof. HONG’s group, which may provide a new strategy for synthesizing more complex metal-organic assemblies, this result has been published in Chemical Communications (Chem. Commun., 2014, 50, 1678-1681). While another metal-organic framework with different metallocage units has also been prepared, which has excellent H2 storage capacity, and the result has also been published in Chemical Communications (Chem. Commun., 2014, 50, 2834-2836).
Over the past few years, Prof. HONG's group has reported series of supramolecular assemblies based on discrete metallocages. (Chem. Sci., 2012, 3, 2321-2325.; Chem. Commun., 2011, 47, 9861-9863.; Chem. Commun., 2011, 47, 2327-2329; Chem. Eur. J., 2013, 19, 468-472; Chem. Eur. J., 2011, 17, 2189-2198).CAS Institutes
There are 124 Institutions directly under the CAS by the end of 2012, with 104 research institutes, five universities & supporting organizations, 12 management organizations that consist of the headquarters and branches, and three other units. Moreover, there are 25 legal entities affiliated and 22 CAS invested holding enterprisesThere are 124 I...>> more
Contact Us
Chinese Academy of Sciences
Add: 52 Sanlihe Rd., Xicheng District, Beijing, China
Postcode: 100864
Tel: 86-10-68597592 (day) 86-10-68597289 (night)
Fax: 86-10-68511095 (day) 86-10-68512458 (night)
E-mail: cas_en@cas.cn