A 3D homochiral metal–organic framework with high selective adsorption property

Zheng, Xiaodan; Huang, Yong‐Liang; Tong, Yiping; Peng, Chu-Jun

doi:10.1016/j.inoche.2018.04.007

Cited by 2 publications

(2 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Especially, the different side groups of amino acids embedding in those ligands could delicately adjust the structure and performance of the resulting HMOFs. More importantly and intriguingly, the in situ formation of metal cluster subunits with different structural types was found during the assembly of Zn-, Cd-, or Eu-HMOF. − In contrast, metal clusters with specific geometry and more ligation sites may provide more opportunities for the construction of HMOFs with a novel structure and unique properties. − Continuing our work in exploring optical materials of HMOFs, ( S )-5-((2-carboxy-5-oxopyrrolidin-1-yl)methyl)isophthalic acid (H 3 L), which had been used by us to construct novel 3D porous helical Ln-HMOFs (Ln = Eu 3+ or Tb 3+ ) with interesting optical properties and excellent thermotolerance, was chosen and synthesized as the enantiopure chiral bridge. In this work, d 10 metal ions Zn 2+ and Cd 2+ were used as metal centers to construct H 3 L-based HMOFs because these metal ions are ideal candidates for fabricating HMOFs due to their flexible coordination number and configuration as well as their complexes’ appealing photoelectric properties. − Additionally, the crystalline samples of Zn 2+ and Cd 2+ metal–organic frameworks usually display high optical transparency and excellent physicochemical stability, which are conducive to greatly improving NLO performance .…”

Section: Introductionmentioning

confidence: 97%

Homochiral Metallohelicates Based on Zinc(II) and Cadmium(II) Clusters with Excellent Thermostability and Remarkable Second-Harmonic Generation

Zuo

Wang

Dong

et al. 2022

Crystal Growth & Design

View full text Add to dashboard Cite

Two interesting homochiral coordination polymers based on in situ produced zinc(II)/cadmium(II) clusters, namely, {[Zn4(L)2(OH)2(H2O)3]·3H2O} n (1) and {[Cd3(L)2(H2O)4]·4H2O} n (2), were hydro/solvothermally synthesized by the reaction of the designed enantiomerically pure chiral ligand (S)-5-((2-carboxy-5-oxopyrrolidin-1-yl)methyl)isophthalic acid (H3L) with Zn(OH)2 or Cd(OH)2. Complex 1 is a three-dimensional (3D) metallohelicate constructed from novel six-fold helical chain substructures based on tetranuclear zinc(II) clusters. Complex 2 is a 2D double-layered metallohelicate containing interesting four-fold helical chain substructures based on trinuclear cadmium(II) clusters. Topologically, 1 can be described as an interesting (3,4,7)-connected net with a point symbol of (42·6)(42·64)(44·615·82), while 2 can be reducible to a (3,6)-connected kgd net. Thermal analyses disclosed that the dehydrated frameworks of 1 and 2 had excellent thermostability. Clearly, the in situ produced zinc(II)/cadmium(II) clusters are of great significance not only in the formation of novel helical frameworks of 1 and 2 but also in the excellent thermostability of their frameworks. Furthermore, their solid-state optical properties, including CD spectra and nonlinear optical and luminescence properties, were also carried out. In particular, 1 and 2 show remarkable second harmonic generation with efficiencies about 1.15 and 0.95 times that of potassium dihydrogen phosphate, respectively. Even more important, the high thermostability and remarkable second harmonic generation response of colorless transparent crystalline materials 1 and 2 are meaningful for further exploring their optical applications.

show abstract

Section: Introductionmentioning

confidence: 97%

Homochiral Metallohelicates Based on Zinc(II) and Cadmium(II) Clusters with Excellent Thermostability and Remarkable Second-Harmonic Generation

Zuo

Wang

Dong

et al. 2022

Crystal Growth & Design

View full text Add to dashboard Cite

show abstract

“…Selection of the MOF should be focussed on its ability to capture a high volume of guest molecules and on the selectivity of the desired guest molecules. Zheng et al [39] stated that the design and synthesis of flexible MOFs, which can interact with certain guest molecules in a switchable way, would be appealing to explore. Furthermore, Abroshan and Kim [40] studied the stability of IRMOF-1 and IRMOF-10 after the incorporation of imidazolium and pyridinium-based ILs by molecular dynamics.…”

Section: Introductionmentioning

confidence: 99%

Choline-Based Ionic Liquids-Incorporated IRMOF-1 for H2S/CH4 Capture: Insight from Molecular Dynamics Simulation

et al. 2020

View full text Add to dashboard Cite

The removal of H2S and CH4 from natural gas is crucial as H2S causes environmental contamination, corrodes the gas stream pipelines, and decreases the feedstock for industrial productions. Many scientific researches have shown that the metal-organic framework (MOF)/ionic liquids (ILs) have great potential as alternative adsorbents to capture H2S. In this work, molecular dynamics (MD) simulation was carried out to determine the stability of ILs/IRMOF-1 as well as to study the solubility of H2S and CH4 gases in this ILs/IRMOF-1 hybrid material. Three choline-based ILs were incorporated into IRMOF-1 with different ratios of 0.4, 0.8, and 1.2% w/w, respectively, in which the most stable choline-based ILs/IRMOF-1 composite was analysed for H2S/CH4 solubility selectivity. Among the three choline-based ILs/IRMOF-1, [Chl] [SCN]/IRMOF-1 shows the most stable incorporation. However, the increment of ILs loaded in the IRMOF-1 significantly reduced the stability of the hybrid due to the crowding effect. Solvation free energy was then computed to determine the solubility of H2S and CH4 in the [Chl] [SCN]/IRMOF-1. H2S showed higher solubility compared to CH4, where its solubility declined with the increase of choline-based IL loading.

show abstract

A 3D homochiral metal–organic framework with high selective adsorption property

Cited by 2 publications

References 50 publications

Homochiral Metallohelicates Based on Zinc(II) and Cadmium(II) Clusters with Excellent Thermostability and Remarkable Second-Harmonic Generation

Homochiral Metallohelicates Based on Zinc(II) and Cadmium(II) Clusters with Excellent Thermostability and Remarkable Second-Harmonic Generation

Choline-Based Ionic Liquids-Incorporated IRMOF-1 for H2S/CH4 Capture: Insight from Molecular Dynamics Simulation

Contact Info

Product

Resources

About