Abstract: Provided is a porous metal cyanide-based framework material (MCFs) with cation gating effect, along with its preparation method and application in carbon dioxide capture. The general structural formula of the framework material is Mx[M?(CN)6]y·Az·nH2O, where 0?n?10. When n?1, the crystal structure belongs to the R3c space group. When 0?n<1, the structure transforms to the P2/c space group. The framework material has a cage structure, and each cage has six hexagonal windows and six quadrilateral windows. The monovalent cations at the hexagonal windows exhibit a gating effect, which can selectively allow carbon dioxide molecules to pass through. The framework material has the highest CO2 adsorption capacity and selectivity in carbon dioxide capture, especially in the application of carbon dioxide adsorption under low pressure (?0.

Abstract: Methods of using an organic framework (OF) are provided herein, including methods of using an OF comprising a repeat unit of the formula: The OFs provided herein may be used in the separation of two or more molecules from each other. In some embodiments, the molecules are propylene and propane.

Abstract: Provided herein is a molecular sorbent based on copper that provides high-purity separation, such as separation of ethylene from ethylene-ethane mixtures and propylene from propylene-propane mixtures. Further provided herein are compositions thereof, methods of manufacturing these, and methods of use thereof.

Abstract: Methods of using an organic framework (OF) are provided herein, including methods of using an OF comprising a repeat unit of the formula: The OFs provided herein may be used in the separation of two or more molecules from each other. In some embodiments, the molecules are propylene and propane.

Abstract: Methods of preparing and using a metal-organic framework (MOF) are provided herein, including methods of using an MOF comprising a repeat unit of the formula [ML]n, wherein M is a divalent metal ion and L is a ligand of the formula: The MOFs provided herein may be used in the separation of two or more molecules from each other. In some embodiments, the molecules are ethylene and ethane. In some embodiments, UTSA-280 may be synthesized from calcium oxide (CaO) or calcium hydroxide (Ca(OH)2) and squaric acid (SA) through mechanochemical synthesis.

Abstract: In some aspects, the present disclosure provides one or more compounds of the formula: The compounds maybe used to form one or more organic frameworks that may be used in the separation of two or more molecules from each other. In some embodiments, the molecules are ethylene and ethane. In some embodiments, the organic frameworks may be used to separate one or more of these molecules with high selectivity.

Abstract: Methods of preparing and using a metal-organic framework (MOF) are provided herein, including methods of using an MOF comprising a repeat unit of the formula [ML]n, wherein M is a divalent metal ion and L is a ligand of the formula: The MOFs provided herein may be used in the separation of two or more molecules from each other. In some embodiments, the molecules are ethylene and ethane. In some embodiments, UTSA-280 may be synthesized from calcium oxide (CaO) or calcium hydroxide (Ca(OH)2) and squaric acid (SA) through mechanochemical synthesis.

Abstract: A method of separating acetylene from a gas mixture comprising acetylene is provided. The method involves the use of a hybrid porous material with an affinity for acetylene adsorption. The hybrid porous material comprises a three-dimensional structure of metal species (M) and first and second linker groups (L1 and L2), wherein the metal species (M) are linked together in a first and second direction by first linker groups (L1) and are linked together in a third direction by second linker groups (L2) to form the three-dimensional structure. The hybrid porous materials may have a high selectivity for acetylene and/or a high capacity for acetylene adsorption. The method may be particularly useful for the purification of ethylene gas contaminated with acetylene during an ethylene production/purification process. The method may be particularly useful for the large scale separation of acetylene from other gases such as ethylene and carbon dioxide, during an acetylene production/purification process.

Abstract: The separation of ethane from its corresponding ethylene is a very important, challenging and energy-intensive process in the chemical industry. Herein we report a microporous metal-organic framework Fe2(O2)(dobdc) (dobdc4?: 2,5-dioxido-1,4-benzenedicarboxylate) with Fe-peroxo sites for the preferential binding of ethane over ethylene and thus highly selective separation of C2H6/C2H4. Neutron powder diffraction studies and theoretical calculations demonstrate the key role of Fe-peroxo sites for the recognition of ethane. The high performance of Fe2(O2)(dobdc) for the ethane/ethylene separation has been validated by gas sorption isotherms, ideal adsorbed solution theory calculations, simulated and experimental breakthrough curves. Through a fixed-bed column packed with this porous material, polymer-grade of ethylene (99.

Abstract: A metal-organic framework (MOF) and uses thereof are provided herein, including an MOF comprising a repeat unit of the formula [Zn2(H2O)L.0.5H2O]n, wherein L is a ligand of the formula: The MOFs provided herein may be used in the separation of two or more gaseous molecules from each other. In some embodiments, the gaseous molecules are carbon dioxide and acetylene.

Abstract: A metal-organic framework (MOF) and uses thereof are provided herein, including MOF comprising a repeat unit of the formula [ML], wherein L is a ligand of the following formula: and M is a divalent metal such as copper. The MOFs provided herein may be used in the separation of two or more gaseous molecules from each other. In some embodiments, the gaseous molecules are ethylene and acetylene.

Abstract: A method of separating acetylene from a gas mixture comprising acetylene is provided. The method involves the use of a hybrid porous material with an affinity for acetylene adsorption. The hybrid porous material comprises a three-dimensional structure of metal species (M) and first and second linker groups (L1 and L2), wherein the metal species (M) are linked together in a first and second direction by first linker groups (L1) and are linked together in a third direction by second linker groups (L2) to form the three-dimensional structure. The hybrid porous materials may have a high selectivity for acetylene and/or a high capacity for acetylene adsorption. The method may be particularly useful for the purification of ethylene gas contaminated with acetylene during an ethylene production/purification process. The method may be particularly useful for the large scale separation of acetylene from other gases such as ethylene and carbon dioxide, during an acetylene production/purification process.

Abstract: Disclosed herein are metal-organic frameworks (MOF) and uses thereof, including those comprising a repeat unit of the formula [Cu2L(H2O)2]-5DMF-3H2O, wherein L is a ligand of the formula: These are useful for many applications, including in the purification of hydrogen gas from production byproducts CH4 and CO2, sensing, heterogeneous catalysis, drug delivery, lithium sulfide battery, membrane and analytical devices.

Abstract: A metal-organic framework (MOF) and uses thereof are provided herein, including MOF comprising a repeat unit of the formula [ML], wherein L is a ligand of the following formula: and M is a divalent metal such as copper. The MOFs provided herein may be used in the separation of two or more gaseous molecules from each other. In some embodiments, the gaseous molecules are ethylene and acetylene.

Abstract: A metal-organic framework (MOF) and uses thereof are provided herein, including an MOF comprising a repeat unit of the formula [Zn2(H2O)L.0.5H2O]n, wherein L is a ligand of the formula: The MOFs provided herein may be used in the separation of two or more gaseous molecules from each other. In some embodiments, the gaseous molecules are carbon dioxide and acetylene.

Abstract: Disclosed herein are metal-organic frameworks (MOF) and uses thereof, including those comprising a repeat unit of the formula [Cu2L(H2O)2]-5DMF-3H2O, wherein L is a ligand of the formula: These are useful for many applications, including in the purification of hydrogen gas from production byproducts CH4 and CO2, sensing, heterogeneous catalysis, drug delivery, lithium sulfide battery, membrane and analytical devices.

Abstract: Disclosed herein are metal-organic frameworks (MOF) and uses thereof, including those comprising a repeat unit of the formula [Cu3(L1)2(H2O)3] or [Cu3(L2)2(H2O)3], wherein L1 is a ligand of the formula: (structurally represented), and where L2 is a ligand of the formula: (structurally represented). These are useful for many applications, including in the purification of hydrogen gas from production byproducts CH4 and CO2, sensing, heterogeneous catalysis, drug delivery, lithium sulfide battery, membrane and analytical devices.

Abstract: A 3D porous metal-organic framework and method of making are described. In some embodiments, a 3D porous metal-organic framework may be based on a trinodal (3,3,4) net of zyg topology by the self-assembly of the nonlinear hexacarboxylate (BHB) with the paddle-wheel Cu2(COO)4 cluster. Although its porosity and surface area are moderate, the open copper sites and optimal pore spaces enable the pore spaces to be fully utilized for methane storage, resulting in a high methane storage density and high absolute volumetric methane storage at room temperature and 35 bar. By the immobilization of high density open metal sites and the deliberate control of the pore space for their efficient methane storage, this porous MOF functions as an efficient media for methane and natural gas storage.

Abstract: Disclosed herein are mixed metal-organic frameworks, Zn3(BDC)3[Cu(SalPycy)] and Zn3(CDC)3[Cu(SalPycy)], wherein BDC is 1,4-benzenedicarboxylate, CDC is 1,4-cyclohexanedicarboxylate, and SalPyCy is a ligand of the formula: These are useful for applications such as selective gas storage, selective molecular separations, and selective detection of molecules, including enantioselective applications thereof.

Abstract: Disclosed herein are metal-organic frameworks (MOF) and uses thereof, including those comprising a repeat unit of the formula [Cu3(L1)2(H20)3] or [Cu3(L2)2(H20)3], wherein L1 is a ligand of the formula: (structurally represented), and where L2 is a ligand of the formula: (structurally represented). These are useful for many applications, including in the purification of hydrogen gas from production byproducts CH4 and C02, sensing, heterogeneous catalysis, drug delivery, lithium sulfide battery, membrane and analytical devices.