Nickel-4'-(3,5-dicarboxyphenyl)-2,2',6',2″-terpyridine Framework: Efficient Separation of Ethylene from Acetylene/Ethylene Mixtures with a High Productivity.

A novel compound, [Ni(DCPTP)] n (termed Ni-DCPTP), based on the 4'-(3,5-dicarboxyphenyl)-2,2',6',2″-terpyridine (DCPTP2-) ligand was presented here. Ni-DCPTP has a three-dimensional structure with a ths topology featuring one-dimensional (1D) helical channels. Ni-DCPTP shows an efficient removal of a trace amount of C2H2 from a C2H2/C2H4 (1/99) mixture with an excellent C2H4 productivity as demonstrated by both the transient breakthrough simulations and breakthrough experiments, generating the polymer-grade C2H4 gas (C2H2 < 40 ppm). The carboxylate oxygen atoms on the surface of 1D channels are the preferential binding sites for C2H2 molecules. This work demonstrates an elegant example with carboxylate oxygen-functionalized pore channels for effective C2H2/C2H4 separation.

[1]  Xianhui Bu,et al.  Metal–Organic Frameworks for Separation , 2018, Advanced materials.

[2]  R. Krishna,et al.  An Ideal Molecular Sieve for Acetylene Removal from Ethylene with Record Selectivity and Productivity , 2017, Advanced materials.

[3]  Xiao-Ming Chen,et al.  Controlling guest conformation for efficient purification of butadiene , 2017, Science.

[4]  R. Krishna,et al.  Flexible-Robust Metal-Organic Framework for Efficient Removal of Propyne from Propylene. , 2017, Journal of the American Chemical Society.

[5]  Wei Zhou,et al.  Optimized Separation of Acetylene from Carbon Dioxide and Ethylene in a Microporous Material. , 2017, Journal of the American Chemical Society.

[6]  M. Eddaoudi,et al.  A metal-organic framework–based splitter for separating propylene from propane , 2016, Science.

[7]  Chen-Yen Tsai,et al.  Interpenetrating Metal-Metalloporphyrin Framework for Selective CO2 Uptake and Chemical Transformation of CO2. , 2016, Inorganic chemistry.

[8]  Rajamani Krishna,et al.  Pore chemistry and size control in hybrid porous materials for acetylene capture from ethylene , 2016, Science.

[9]  R. Krishna,et al.  Extraordinary Separation of Acetylene-Containing Mixtures with Microporous Metal-Organic Frameworks with Open O Donor Sites and Tunable Robustness through Control of the Helical Chain Secondary Building Units. , 2016, Chemistry.

[10]  W. Zhou,et al.  Metal-Organic Frameworks as Platforms for Functional Materials. , 2016, Accounts of chemical research.

[11]  Shengqian Ma,et al.  Applications of metal-organic frameworks featuring multi-functional sites , 2016 .

[12]  Xiuling Ma,et al.  Microporous Metal-Organic Framework Stabilized by Balanced Multiple Host-Couteranion Hydrogen-Bonding Interactions for High-Density CO2 Capture at Ambient Conditions. , 2016, Inorganic chemistry.

[13]  R. Krishna,et al.  Microporous metal–organic framework with dual functionalities for highly efficient removal of acetylene from ethylene/acetylene mixtures , 2015, Nature Communications.

[14]  C. Tang,et al.  Supramolecular binding and separation of hydrocarbons within a functionalized porous metal-organic framework. , 2015, Nature chemistry.

[15]  R. Krishna.  The Maxwell–Stefan description of mixture diffusion in nanoporous crystalline materials , 2014 .

[16]  Michael O’Keeffe,et al.  The Chemistry and Applications of Metal-Organic Frameworks , 2013, Science.

[17]  Cheng Wang,et al.  Metal-organic frameworks as a tunable platform for designing functional molecular materials. , 2013, Journal of the American Chemical Society.

[18]  Stephen D. Burd,et al.  Porous materials with optimal adsorption thermodynamics and kinetics for CO2 separation , 2013, Nature.

[19]  Rajamani Krishna,et al.  Metal–organic frameworks with potential for energy-efficient adsorptive separation of light hydrocarbons , 2012 .

[20]  Rajamani Krishna,et al.  Hydrocarbon Separations in a Metal-Organic Framework with Open Iron(II) Coordination Sites , 2012, Science.

[21]  R. Snurr,et al.  Highly selective carbon dioxide uptake by [Cu(bpy-n)2(SiF6)] (bpy-1 = 4,4'-bipyridine; bpy-2 = 1,2-bis(4-pyridyl)ethene). , 2012, Journal of the American Chemical Society.

[22]  K. Thomas,et al.  Rationally tuned micropores within enantiopure metal-organic frameworks for highly selective separation of acetylene and ethylene. , 2011, Nature communications.

[23]  Guodong Qian,et al.  Metal-organic frameworks with functional pores for recognition of small molecules. , 2010, Accounts of chemical research.

[24]  Hong-Cai Zhou,et al.  Selective gas adsorption and separation in metal-organic frameworks. , 2009, Chemical Society reviews.