Two new MOFs based on 5-((4-carboxypyridin-2-yl)oxy) isophthalic acid displaying unique selective CO2 gas adsorption and magnetic properties

CrystEngComm ◽  
2019 ◽  
Vol 21 (46) ◽  
pp. 7078-7084 ◽  
Author(s):  
Jian-Guo Cheng ◽  
Jiao Liu ◽  
Wen-Quan Tong ◽  
Dan Wu ◽  
Fan Yang ◽  
...  

The reaction of Cu(ii)/Co(ii) with a N-heterocyclic carboxylate ligand produced two new MOFs with different topologies. The Cu-MOF showed selective adsorption for CO2 over CH4, and the antiferromagnetic properties existed in the two MOFs.

CrystEngComm ◽  
2018 ◽  
Vol 20 (38) ◽  
pp. 5726-5734 ◽  
Author(s):  
Nannan Bai ◽  
Ruicheng Gao ◽  
Haihua Wang ◽  
Yunlong Wu ◽  
Lei Hou ◽  
...  

Five coordination polymers have been synthesized by a new organic linker containing three distinct types of functional groups together with the mixed 2,2′-bipy or 4,4′-bipy co-ligand, revealing various framework structures and selective gas adsorption and magnetic properties.


2021 ◽  
Author(s):  
Narendran Rajendran ◽  
Ali A. Husain ◽  
Saad Makhseed

Three new carbazole containing cross-linked polymers namely AH-Poly, TM-PDA-Poly and TMB-PDA-Poly were designed and successfully synthesized by an oxidative polymerization protocol. The prepared AH-Poly showed a specific BET surface area...


CrystEngComm ◽  
2020 ◽  
Vol 22 (42) ◽  
pp. 7046-7053
Author(s):  
Lingling Gao ◽  
Yongjun Bian ◽  
Yuan Tian ◽  
Yongqiang Chen ◽  
Tuoping Hu

A pictogram: the gas adsorption and magnetic properties of three Co(ii) coordination polymers constructed from 3,5-di(2′,5′-dicarboxylphenyl)benzoic acid ligand have been explored.


2019 ◽  
Vol 136 ◽  
pp. 131-137 ◽  
Author(s):  
Dongdong Yao ◽  
Ting Li ◽  
Yaping Zheng ◽  
Zhilin Zhang

2018 ◽  
Vol 47 (37) ◽  
pp. 12979-12983 ◽  
Author(s):  
Ya-Ru Gong ◽  
Wei-Chao Chen ◽  
Liang Zhao ◽  
Kui-Zhan Shao ◽  
Xin-Long Wang ◽  
...  

Two new VMOPs with cuboctahedral geometries were synthesized based on [V6O6(OCH3)9X] (X = VO4 or SO4) and the rigid tridentate carboxylate ligand H3TATB, which present selective adsorption toward cationic dyes in aqueous solution.


2016 ◽  
Vol 120 (26) ◽  
pp. 14113-14121 ◽  
Author(s):  
MPK Sahoo ◽  
Jie Wang ◽  
Yajun Zhang ◽  
Takahiro Shimada ◽  
Takayuki Kitamura

2018 ◽  
Vol 136 ◽  
pp. 753-760 ◽  
Author(s):  
Débora Aline Soares Maia ◽  
José Carlos Alexandre de Oliveira ◽  
Marcelo Sandro Nazzarro ◽  
Karim Manuel Sapag ◽  
Raul Horácio López ◽  
...  

2019 ◽  
Vol 33 (16) ◽  
pp. 1950166
Author(s):  
Huan Ma ◽  
Ling Ma ◽  
Liang-Cai Ma

The effect of gas molecule (H2CO, NO, NO2, O2 and SO2) adsorption on the electronic and magnetic properties of Mn-doped graphene (MnG) is investigated by first-principles calculations in the framework of density functional theory (DFT). Our study reveals that after H2CO, NO, NO2 and SO2 adsorption, MnG transforms from half-metal to semiconductor, and this transformation indicates that MnG’s conductivity is changed significantly. Meanwhile, O2 adsorption has no influence on MnG’s original electronic property. Therefore, the substrate of MnG is highly sensitive to H2CO, NO, NO2 and SO2. The reconfiguration of electron distribution caused by gas adsorption dramatically alters the spin polarization distribution of the combined system, that is, NO2 and H2CO adsorption leads to local spin polarization, whereas O2, NO and SO2 adsorption result in complete spin polarization. In addition, the external electric field (E-field) is varied from −0.50 V/Å to +0.50 V/Å then applied to the adsorption system. A strong interaction is observed between gas and MnG with a positive E-field as reflected in the enhancement of adsorption energy. The interaction is obviously weakened by introducing the E-field in the negative direction. Hence, the adsorption strength and sensitivity of gas on MnG can be effectively tuned by the E-field. The results can serve as useful references for the design of graphene-based gas sensor.


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