Two water-stable 3D supramolecules supported by hydrogen bonds for proton conduction

Chen, Wanyao; Zhao, Lijia; Yu, Shihang; Li, Zifeng; Jun, Feng; Li, Gang

doi:10.1016/j.poly.2018.04.003

Cited by 37 publications

(16 citation statements)

References 35 publications

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“…The Co2 is five‐coordinated by two nitrogen atoms (N1# and N1), two carboxylate oxygen atoms (O4# and O4) from two p ‐CPhHIDC 3− anions, and one oxygen atom (O15) from one coordinated water molecule. The Co−O(N) lengths and O‐Co‐O(N) angles (Table S4 in the Supporting Information) are consistent with previous values . Each p ‐CPhHIDC 3− ligand adopts the similar coordination mode as that in 1 (Figure S4 in the Supporting Information).…”

Section: Resultssupporting

confidence: 88%

“…TheC o ÀO(N) lengths and O-Co-O(N) angles( Table S4 in the Supporting Information) are consistent with previous values. [34,35] Each p-CPhHIDC 3À ligand adopts the similarc oordination mode as that in 1 ( Figure S4 in the Supporting Information). The constructions of the 2D and 3D structures of 2 are very similar to those of 1 ( Figure S5 in the Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

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Two Highly Stable Proton Conductive Cobalt(II)–Organic Frameworks as Impedance Sensors for Formic Acid

Liu

Shi

Wang

et al. 2019

Chemistry A European J

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Metal-organic frameworks (MOFs) have been extensively exploreda sa dvanced chemical sensors in recent years. However,t here are few studies on MOFs as acidic gas sensors, especiallyp rotonc onductive MOFs.I nt his work, two new proton-conducting 3D MOFs,{ [Co 3 (p-CPhHIDC) 2 (4,4'-bipy)(H 2 O)]·2H 2 O} n (1)( p-CPhH 4 IDC = 2-(4-carboxylphenyl)-1 H-imidazole-4,5-dicarboxylic acid;4 ,4'-bipy = 4,4'-bipyridine) and {[Co 3 (p-CPhHIDC) 2 (bpe)(H 2 O)]·3H 2 O} n (2) (bpe = trans-1,2-bis(4-pyridyl)ethylene) have been solvothermally prepared and investigated their formic acid sensing properties. Both MOFs 1 and 2 show temperature-and humidity-dependent protonc onductive properties and exhibit optimizedp roton conductivities of 1.04 10 À3 and 7.02 10 À4 Scma t9 8% relative humidity (RH) and 100 8C, respectively.T he large number of uncoordinated carboxylic acid sites, free and coordination water molecules, andh ydrogen-bondingn etworks inside the frameworks are favorable to the proton transfer.B ym easuringt he impedance values after exposure to formic acid vapor at 98 %o r6 8% RH and 25 8C, both MOFs indicater eproducibly high sensitivity to the analyte. The detection limit of formic acid vapor is as low as 35 ppm for 1 and 70 ppm for 2.M eanwhile, both MOFs also show commendable selectivity towards formic acid among interfering solutions. The proton conducting and formic acid sensingm echanismsh ave been suggested according to the structural analysis, E a calculations, N 2 and water vapor absorptions, PXRD and SEM measurements. This work will open an ew avenue for proton-conductive MOFbased impedance sensors and promote the potentiala pplication of these MOFs fori ndirectly monitoring the concentrationsofformic acid vapors.[a] R.

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Section: Resultssupporting

confidence: 88%

Section: Resultsmentioning

confidence: 99%

Two Highly Stable Proton Conductive Cobalt(II)–Organic Frameworks as Impedance Sensors for Formic Acid

Liu

Shi

Wang

et al. 2019

Chemistry A European J

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“…Proton conductivity values of these two complexes are of comparable or higher than some of the recently reported materials which include coordination polymers, MOFs, COFs etc (Table S3). Moreover, hydrogen‐bonded frameworks of discrete coordination complexes have not been explored much as proton conductors …”

Section: Resultsmentioning

confidence: 99%

“…Moreover,h ydrogen-bonded frameworks of discrete coordination complexesh ave not been explored much as protonc onductors. [50]…”

Section: Resultsmentioning

confidence: 99%

Proton‐Conducting Hydrogen‐Bonded 3D Frameworks of Imidazo‐Pyridine‐Based Coordination Complexes Containing Naphthalene Disulfonates in Rhomboid Channels

Garai

Kumar

Banerjee

et al. 2019

Chemistry An Asian Journal

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Coordination complexes of an olefinic molecule (PIP) containing pyridine and imidazopyridine moieties with ZnII/NiII metal salts were shown to exhibit appreciable proton conductivity. These complexes form 3D‐hydrogen bonded frameworks containing rhomboidal channels that are occupied by uncoordinated 1,5‐naphthalenedisulfonate (NDS). The extensive hydrogen bonding between the frameworks and NDS resulted in thermally stable and water‐insoluble materials. Irrespective of the metal atom present, both complexes exhibited moderate to high proton conduction in the range of 10−5 to 0.5×10−3 S cm−1 depending on the temperature and humidity levels.

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“…We merely explored their self‐assembly features, crystal structures, thermal stability, magnetic and fluorescence properties . Recently, with the in‐depth research on proton conduction of imidazole dicarboxylate‐based MOFs in our laboratory, above acyl thiourea carboxylate‐based complexes have appealed to our great attention again. This is for the reason that there are many carbonyl groups (C=O), thiocarbonyl groups (C=S), NH groups and carboxyl groups (COOH) in these complexes.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Aqua‐Ammonia Vapor on Proton Conduction for Two Water‐Tolerant Complicated Copper Cluster Compounds

Guo

et al. 2019

ChemistrySelect

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By adopting two similar acyl thiourea‐based carboxylate ligands, 2‐(3‐benzoylthioureido)propionic acid (H3BTPA) and 2‐(3‐benzoylthioureido)ethanoic acid (H3BTEA) to react with Cu(OAc)2, respectively, one 2D cluster polymer [CuI6CuII6(BTPA)6(H2O)10]n (1) and one 0D cluster [CuI6CuII6(BTEA)6(H2O)10(DMF)2]⋅6H2O (2) (DMF=N, N‐dimethylformamide) were successfully prepared and structurally characterized. The optimized proton conductivity for 1 is 1.16 × 10−5 S⋅cm−1 under 98% RH and 100 °C, which can be increased to a higher value of 7.70 × 10−4 S⋅cm−1 under aqua‐ammonia vapor from 2.0 M of NH3⋅H2O solution. For 2, the largest proton conductivity of 9.80 × 10−4 S⋅cm−1 could be obtained under aqua‐ammonia vapor. Through PXRD determinations, water and ammonia adsorption measurements, Ea calculations, a clear understanding of their proton conduction mechanisms as well as the enhancement of aqua‐ammonia vapor on the proton conduction has been obtained.

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Two water-stable 3D supramolecules supported by hydrogen bonds for proton conduction

Cited by 37 publications

References 35 publications

Two Highly Stable Proton Conductive Cobalt(II)–Organic Frameworks as Impedance Sensors for Formic Acid

Two Highly Stable Proton Conductive Cobalt(II)–Organic Frameworks as Impedance Sensors for Formic Acid

Proton‐Conducting Hydrogen‐Bonded 3D Frameworks of Imidazo‐Pyridine‐Based Coordination Complexes Containing Naphthalene Disulfonates in Rhomboid Channels

Enhancement of Aqua‐Ammonia Vapor on Proton Conduction for Two Water‐Tolerant Complicated Copper Cluster Compounds

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