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|Title:||Tuning metal-carboxylate coordination in crystalline metal-organic frameworks through surfactant media|
|Citation:||Gao, J., Ye, K., He, M., Xiong, W.-W., Cao, W., Lee, Z.Y., Wang, Y., Wu, T., Huo, F., Liu, X., Zhang, Q. (2013). Tuning metal-carboxylate coordination in crystalline metal-organic frameworks through surfactant media. Journal of Solid State Chemistry 206 : 27-31. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jssc.2013.07.031|
|Abstract:||Although it has been widely demonstrated that surfactants can efficiently control the size, shape and surface properties of micro/nanocrystals of metal-organic frameworks (MOFs) due to the strong interactions between surfactants and crystal facets of MOFs, the use of surfactants as reaction media to grow MOF single crystals is unprecedented. In addition, compared with ionic liquids, surfactants are much cheaper and can have multifunctional properties such as acidic, basic, neutral, cationic, anionic, or even block. These factors strongly motivate us to develop a new synthetic strategy: growing crystalline MOFs in surfactants. In this report, eight new two-dimensional (2D) or three-dimensional (3D) MOFs have been successfully synthesized in an industrially-abundant and environmentally-friendly surfactant: polyethylene glycol-200 (PEG-200). Eight different coordination modes of carboxylates, ranging from monodentate η1 mode to tetra-donor coordination μ3-η1:η2:η1 mode, have been founded in our research. The magnetic properties of Co-based MOFs were investigated and MOF NTU-Z6b showed a phase transition with a Curie temperature (Tc) at 5 K. Our strategy of growing crystalline MOFs in surfactant could offer exciting opportunities for preparing novel MOFs with diverse structures and interesting properties. © 2013 Elsevier Inc.|
|Source Title:||Journal of Solid State Chemistry|
|Appears in Collections:||Staff Publications|
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