Highly efficient iodine species enriching and guest-driven tunable luminescent properties based on a cadmium(ii)-triazole MOF

Liu, Qi‐Kui; Ma, Jian‐Ping; Dong, Yu‐Bin

doi:10.1039/c1cc11402f

Cited by 168 publications

(76 citation statements)

References 23 publications

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“…Recent researches on iodine adsorption and storage have mainly focused on the development of silver-loaded zeolites and various organic solids, including CMPs, MOFs, and POPs [2][3][4][5][6][7][8][9]. Interestingly, we found the iodine adsorption by the KOH-AC was highly efficient.…”

Section: Resultsmentioning

confidence: 97%

“…It should be noted that this value of 376 wt% for iodine trapping is the highest one for porous materials, to our best knowledge. With this value, KOH-AC could compete with silver-loaded zeolite, MOFs, CMPs, POPs [2][3][4][5][6][7][8][9], and so on. The XPS spectrum exhibited that the trapped iodine with a valence of zero loaded on KOH-AC, suggesting that the iodine species exists as I 2 (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Silver-based zeolites, metal-organic frameworks (MOFs), and covalently linked porous organic polymers (POPs) have been developed [2][3][4][5][6][7][8][9][10][11]. For example, Cooper et al described a strategy for efficient removal of iodine vapor using porous organic crystals [12].…”

Section: Introductionmentioning

confidence: 99%

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Capture and reversible storage of volatile iodine by porous carbon with high capacity

et al. 2015

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The capture of iodine using porous materials has attracted considerable interest. In this work, porous carbon with a special surface area of 1973 m 2 g -1 was prepared by simple activation method. As an adsorbent, the adsorption capacity of the resulting porous carbon could reach up to 376 wt% for iodine vapor and 460 mg g -1 for iodine uptake in cyclohexane, which both are among the highest values reported up to now. Taking advantages of its high special surface area, easy preparation, low cost, as well as good regeneration, the resulting porous carbon shows great potential in the removal of radioactive iodine at different states.

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Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

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Capture and reversible storage of volatile iodine by porous carbon with high capacity

et al. 2015

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“…1, Cd1 is seven-coordinated by three O atoms from two sulfates, three N atoms from two Hpptpd ligands, and one O atom from a water molecule, giving a pentagonal bipyramidal coordination environment. The Cd-N and Cd-O bond lengths are in the range of 2.273(5)-2.503(4) Å and 2.387(4)-2.647(4) Å respectively, which are well-matched to those observed in similar complexes [17][18][19][20][21]. For the Hpptpd ligand, the aromatic rings can freely rotate along the C-C bonds to adjust themselves to match with the coordination preferences.…”

Section: Methodsmentioning

confidence: 80%

Crystal structure of a novel cadmium sulfate coordination polymer based on the multidentate 2-(3-(4-(pyridin-4-yl)phenyl)-1H-1,2,4-triazol-5-yl) pyridine ligand

2014

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A novel metal-organic coordination polymer, namely [Cd 2 (Hpptpd) 2 (SO 4 ) 2 (H 2 O)] n (I) (Hpptpd = 2-(3-(4-(pyridin-4-yl)phenyl)-1H-1,2,4-triazol-5-yl)pyridine), is hydrothermally synthesized and characterized by elemental analysis, IR and X-ray single crystal diffraction. The X-ray diffraction analysis reveals that I crystallizes in the triclinic system, space group P-1 with a = 8.593(6) Å, b = 9.832(6) Å, c = 11.845(7) Å, α = 68.172(10)°, β = 88.002(12)°, γ = 84.916(11)°, V = 925.3(10) Å 3 , Z = 2. In I, the Cd(II) atom is heptacoordinated and displays a CdN 3 O 4 pentagonal bipyramidal geometry. A pair of head-to-tail arranged Hpptpd ligands with a chelating + bridging mode binds two Cd(II) ions to form a centrosymmetric [Cd 2 (Hpptpd) 2 ] subunit which is bridged by two centrosymmetric sulfate anions to form a zigzag chain. The interchain O water -H⋯O sulfate hydrogen bond extend the one-dimensional (1D) chain into a twodimensional (2D) supramolecular sheet incorporating centrosymmetric twelve-membered 4 4 R (12) hydrogen-bonding rings. The adjacent sheets further interdigitate with each other to form the resultant three-dimensional (3D) supramolecular framework by N Hpptpd -H⋯O sulfate hydrogen bonds and π⋯π stacking interactions.The design and synthesis of metal-organic coordination polymer, often referred to as metal-organic frameworks (MOFs), have attracted more attention not only because of their appealing structural and topological novelty but also owing to their tremendous potential applications in gas storage and separations [1, 2], heterogeneous catalysis [3], ion exchange [4], nonlinear optics [5], magnetism [6,7], and molecular recognition [8][9][10]. To the best of our knowledge, in the assembly process of MOFs, many factors can affect the final crystal structure, such as the structure of the organic ligand [11], the coordination geometry of the metal ion [12], the metal-ligand ratio, and so on. Secondary interactions such as hydrogen bonding, π⋯π stacking and host-guest interactions must also be considered. Recently less attention was given to the supramolecular architectures based on N-donor ligands, especially multidentate N-donor ligands [13]. Unlike the common bipyridine or biimidazole ligands [14], the multidentate N-donor ligands such as 3-(2-pyridyl)-5-(4-pyridyl)-1,2,4-triazole are

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“…A series of metal-organic frameworks based on cadmium have been used to trap I 2 from solution or in a gas-solid process. The molecular iodine is halogen-bonded with perchlorate, and the I⋅⋅⋅o distances are in the range of 2.924-3.141 Å (11-16% van der Waals radii reduction) [74].…”

Section: Xb Acceptors From The16thmentioning

confidence: 99%

Iodine and Halogen Bonding

Terraneo

Resnati

Metrangolo

2014

Iodine Chemistry and Applications

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Highly efficient iodine species enriching and guest-driven tunable luminescent properties based on a cadmium(ii)-triazole MOF

Abstract: The first example of highly efficient iodine enrichment based on a Cd(II)-triazole MOF (1) via both molecular sorption and ion-exchange approaches is reported.

Cited by 168 publications

References 23 publications

Capture and reversible storage of volatile iodine by porous carbon with high capacity

Capture and reversible storage of volatile iodine by porous carbon with high capacity

Crystal structure of a novel cadmium sulfate coordination polymer based on the multidentate 2-(3-(4-(pyridin-4-yl)phenyl)-1H-1,2,4-triazol-5-yl) pyridine ligand

Iodine and Halogen Bonding

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