How to rationally design effective and practical CO_2 adsorbent is a great challenge. Herein, an ultra-microporous metal-organic framework(FJI-H19) with high concentration of free carboxyl groups and uncoordinated Lew...How to rationally design effective and practical CO_2 adsorbent is a great challenge. Herein, an ultra-microporous metal-organic framework(FJI-H19) with high concentration of free carboxyl groups and uncoordinated Lewis basic sites has been synthesized from a multi-dental ligand with a high proportion of polar CO_2-philic atoms. FJI-H19 displays a relatively high CO_2 volumetric uptake(120 cm^3?cm^(–3)) with high selectivity under practical atmosphere(298 K and 1 bar). Further researches demonstrate that such high adsorption results from an unusual synergistic effect from free carboxyl group and uncoordinated N atoms. This result will provide a potential strategy for developing more effective and pratical CO_2 adsorbent based on MOFs.展开更多
A new inorganic-organic hybrid supramolecular compound [Habo]6[V10O28]·2C3H7OH·2H2O 1 (abo = R(-)-2-amino-1-butanol) has been synthesized from VO2^+ in organic solvents and its crystal structure was rep...A new inorganic-organic hybrid supramolecular compound [Habo]6[V10O28]·2C3H7OH·2H2O 1 (abo = R(-)-2-amino-1-butanol) has been synthesized from VO2^+ in organic solvents and its crystal structure was reported as follows: monoclinic, space group P21/n, a = 11.419(9), b = 16.811(16), c = 15.521(12) A, β= 102.98(2)°, V= 2903(4) A^3, Z = 4, C15H46N3O19V5, Mr = 827.25, Dc = 1.893 g/cm^3, 2(MoKα) = 0.71073 A, μ = 1.636 mm^-1, F(000) = 1696, the final R = 0.0696 and wR = 0.1361 for 4641 observed reflections with I 〉 2σ(I). The compound is based on decavanadate clusters [V10O28]^6-. The hydrogen bonding interactions among Habo^+ cations, solvents and decavanadate clusters extend 1 into a three-dimensional supramolecular architecture.展开更多
基金supported by the National Natural Science Foundation of China(21390392,21471148)the Youth Innovation Promotion Association CAS
文摘How to rationally design effective and practical CO_2 adsorbent is a great challenge. Herein, an ultra-microporous metal-organic framework(FJI-H19) with high concentration of free carboxyl groups and uncoordinated Lewis basic sites has been synthesized from a multi-dental ligand with a high proportion of polar CO_2-philic atoms. FJI-H19 displays a relatively high CO_2 volumetric uptake(120 cm^3?cm^(–3)) with high selectivity under practical atmosphere(298 K and 1 bar). Further researches demonstrate that such high adsorption results from an unusual synergistic effect from free carboxyl group and uncoordinated N atoms. This result will provide a potential strategy for developing more effective and pratical CO_2 adsorbent based on MOFs.
基金This work was supported by the National Natural Science Foundation of China and Natural Science Foundation of Fujian Province
文摘A new inorganic-organic hybrid supramolecular compound [Habo]6[V10O28]·2C3H7OH·2H2O 1 (abo = R(-)-2-amino-1-butanol) has been synthesized from VO2^+ in organic solvents and its crystal structure was reported as follows: monoclinic, space group P21/n, a = 11.419(9), b = 16.811(16), c = 15.521(12) A, β= 102.98(2)°, V= 2903(4) A^3, Z = 4, C15H46N3O19V5, Mr = 827.25, Dc = 1.893 g/cm^3, 2(MoKα) = 0.71073 A, μ = 1.636 mm^-1, F(000) = 1696, the final R = 0.0696 and wR = 0.1361 for 4641 observed reflections with I 〉 2σ(I). The compound is based on decavanadate clusters [V10O28]^6-. The hydrogen bonding interactions among Habo^+ cations, solvents and decavanadate clusters extend 1 into a three-dimensional supramolecular architecture.