A microporous Cu-MOF with optimized open metal sites and pore spaces for high gas storage and active chemical fixation of CO₂

Abstract

A microporous Cu-MOF with optimized open metal sites and pore space was constructed based on a designed bent ligand; it exhibits high-capacity multiple gas storage under atmospheric pressure and efficient catalytic activity for chemical fixation of CO2 under mild conditions.

Encapsulation of 5‐Fluorouracil in a Copper(II)‐based Porous Metal‐organic Framework: Drug Delivery and Inhibiting Human Spinal Cord Tumor Cells

“…As shown in Figure a, the Cu II ion is four‐coordinate by three O atoms from three carboxylic groups from three different bcb 3– ligands and one μ 2 ‐OH atom, resulting in a tetragonal [CuO4] arrangement. The Cu–O bond lengths are in the range of 1.920(2) to 2.469(2) Å, which are comparable to the values of the Cu II ‐MOFs reported in the literature . Two symmetry‐related Cu II ions are held together by the μ 2 ‐OH atom to afford a [Cu 2 (μ 2 ‐OH)] 3+ dimer with a Cu‐Cu distance of 3.493 Å, which is further extended to a one‐dimensional Cu II ‐chain secondary building unit (SBU) by two syn ‐bridging carboxylic groups along the c axis.…”

Porous Metal‐Organic Polyhedral Framework containing Cuboctahedron Cages as SBUs with High Affinity for H2 and CO2 Sorption: A Heterogeneous Catalyst for Chemical Fixation of CO2

“…The incorporation of secondary building units (SBUs) such as the well-known M 2 (carboxylate) 4 paddlewheel moiety was shown to produce av ariety of MOFs. [37][38][39][40][41][42][43][44][45][46][47] This approach will help in diminishing the concernedg reenhouse gas,a sw ell as generation of valuable chemicalc ommodities. [11][12][13][14][15] However with the increasing size of the cavi-ties or pores increases the probability of interpenetration of the frameworks, which reduces the cavity size but increases the stability.…”

“…[9,10] Moreovert he expansion of the pore size and surfacea rea of MOFs can be strategically achieved by enlarging the ligand, or by aggregating severalS BUs into biggerc lusters:s upramolecular building blocks (SBBs). [37][38][39][40][41][42][43][44][45][46][47] However,t he design and synthesis of more efficient and robustM OFs is very much necessary for the effective fixation of CO 2 with high yields and high turnover frequencies. [16][17][18][19][20] Several porous frameworks containing nitrogen-rich functional groups,s uch as pyridine, amine, imidazole and acylamide, were shown to have ag reater affinity towards the storing of carbon dioxide (CO 2 ).…”

“…[37][38][39][40][41][42][43][44][45][46][47] However,t he design and synthesis of more efficient and robustM OFs is very much necessary for the effective fixation of CO 2 with high yields and high turnover frequencies. [37][38][39][40][41][42][43][44][45][46][47] However,t he design and synthesis of more efficient and robustM OFs is very much necessary for the effective fixation of CO 2 with high yields and high turnover frequencies.…”

“…[21][22][23][24][25] Development of porous materials that can efficiently adsorb and store H 2 and CO 2 is in demandg iven their practical utility.T he problemsw ith the use of carbon-based fuel can be solved by employing H 2 gas as a dense fuel, as it does not produce any kindo fc arbon emission. [37][38][39][40][41][42][43][44][45][46][47] This approach will help in diminishing the concernedg reenhouse gas,a sw ell as generation of valuable chemicalc ommodities. CO 2 is one of the primary anthropogenic gases, and foremost culprit for global warming and subsequentc limate change.…”