A 2D porous Pb-MOF based on 2-nitroimidazole: CO2 adsorption, electronic structure and luminescence

Abstract A new porous metal-organic framework, [Pb5(Ac)7(nIm)3]n (1), has been successfully synthesized by employing 2-nitroimidazole ligand and Pb2+ ion. 1 contains novel the ribbon-shaped Pb-O SBU and reveals a 2D porous framework with a 1D tubular channel. Moreover, 1 shows moderate adsorption uptake towards CO2 and luminescence properties from intraligand charge transfer. We further confirmed nitro group and metal ion are important adsorption sites by GCMC simulations, and the electronic structures of 1 was investigated.

Download Full-text

Porous metal-organic framework with Lewis acid−base bifunctional sites for high efficient CO2 adsorption and catalytic conversion to cyclic carbonates

Inorganic Chemistry Communications ◽

10.1016/j.inoche.2019.05.031 ◽

2019 ◽

Vol 106 ◽

pp. 70-75 ◽

Cited By ~ 11

Author(s):

Jing Li ◽

Wen-Jun Li ◽

Shi-Cheng Xu ◽

Bo Li ◽

Ying Tang ◽

...

Keyword(s):

Lewis Acid ◽

Co2 Adsorption ◽

Metal Organic Framework ◽

Porous Metal ◽

Catalytic Conversion ◽

Cyclic Carbonates ◽

Acid Base ◽

High Efficient ◽

Metal Organic ◽

Organic Framework

Download Full-text

Incorporating the Thiazolo[5,4-d]thiazole Unit into a Coordination Polymer with Interdigitated Structure

10.20944/preprints201712.0162.v1 ◽

2017 ◽

Author(s):

Simon Millan ◽

Gamall Makhloufi ◽

Christoph Janiak

Keyword(s):

Co2 Adsorption ◽

Metal Organic Framework ◽

Porous Metal ◽

Solvent Exchange ◽

Donor Ligand ◽

Gate Opening ◽

Metal Organic ◽

Solvent Molecules ◽

3D Packing ◽

Sorption Study

The synthesis and structure of the 4,4′-dipyridyl N,N′-donor ligand with a central thiazolo[5,4-d]thiazole (tztz) unit, named Dptztz is presented. With the linker Dptztz and isophthalate (benzene-1,3-dicarboxylate, 1,3-BDC2−) the mixed-linker, two-dimensional coordination network [Zn(1,3-BDC)Dptztz]·DMF could be obtained (DMF = dimethylformamide), which belongs to the class of coordination polymers with interdigitated structures (CIDs). The incorporated DMF solvent molecules can be removed through solvent exchange and evacuation such that the supramolecular 3D packing of the 2D networks retains porosity for CO2 adsorption in activated [Zn(1,3-BDC)Dptztz]. The first sorption study of a tztz-functionalized porous metal-organic framework material yields a BET surface of 417 m2/g from CO2 adsorption. The heat of adsorption for CO2 exhibits a relative maximum with 27.7 kJ/mol at adsorbed CO2 of about 4 cm3/g STP which is interpreted as a gate-opening effect.

Download Full-text

Structural basis of CO2 adsorption in a porous metal–organic framework material

Acta Crystallographica Section A Foundations and Advances ◽

10.1107/s0108767319096740 ◽

2019 ◽

Vol 75 (a1) ◽

pp. a334-a335

Author(s):

Andrew J. Allen ◽

Winnie Wong-Ng ◽

Eric Cockayne ◽

Jeffrey T. Culp ◽

Christopher Matranga

Keyword(s):

Co2 Adsorption ◽

Metal Organic Framework ◽

Porous Metal ◽

Structural Basis ◽

Metal Organic ◽

Organic Framework

Download Full-text

Light-Harvesting Metal-Organic Frameworks (MOFs) La-PTC for Photocatalytic Dyes Degradation

BULLETIN OF CHEMICAL REACTION ENGINEERING AND CATALYSIS ◽

10.9767/bcrec.16.1.10309.170-178 ◽

2021 ◽

Vol 16 (1) ◽

pp. 170-178

Author(s):

Agustino Zulys ◽

Adawiah Adawiah ◽

Jarnuzi Gunlazuardi ◽

Muhammad Derry Luthfi Yudhi

Keyword(s):

Metal Ion ◽

Light Harvesting ◽

Metal Organic Framework ◽

Porous Metal ◽

Bandgap Energy ◽

Absorption Area ◽

Shape Structure ◽

Metal Organic ◽

Dyes Degradation ◽

Organic Framework

A novel porous metal organic framework, La-PTC was synthesized by solvothermal method using a perylene-3,4,9,10-tetracarboxylate ligand and lanthanum metal ion. The FTIR analysis showed that La-PTC has a different structure with PTCDA and Na4PTC. The La-PTC MOF has high crystallinity, bandgap energy of 2.21 eV with a maximum absorption area at 561 nm. A rod shape structure of La-PTC has been obtained with the surface area of 22.2364 m2.g−1 and classified into mesoporous material. The La-PTC was relative stable up to 376.93 °C. The La-PTC can degrade 64.76% of MO within ca. 240 min under visible light irradiation with the amount of 30 mg La-PTC. The addition of H2O2 improved the photocatalytic activity of La-PTC with degradation efficiency of 67.02%, 70.00%, and 99.60% for MB, RhB, and MO, respectively. This study presents the fabrication of the light-harvesting metal organic framework, La-PTC and its potential in dyes degradation. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

Download Full-text

Separation/purification of ethylene from an acetylene/ethylene mixture in a pillared-layer porous metal–organic framework

Chemical Communications ◽

10.1039/c7cc00726d ◽

2017 ◽

Vol 53 (36) ◽

pp. 4907-4910 ◽

Cited By ~ 38

Author(s):

Arpan Hazra ◽

Saibal Jana ◽

Satyanarayana Bonakala ◽

Sundaram Balasubramanian ◽

Tapas Kumar Maji

Keyword(s):

Metal Organic Framework ◽

Porous Metal ◽

Efficient Removal ◽

Narrow Channels ◽

Porous Framework ◽

Metal Organic ◽

Organic Framework

A 3D pillared-layer porous framework with narrow channels decorated with polar pore surfaces has been developed for efficient removal of C2H2 from a C2H2/C2H4 mixture at RT.

Download Full-text