Proton-conducting metal–organic frameworks with linkers containing anthracenyl and sulfonate groups

Ho, Tsai-En; Datta, Amitabha; Lee, Hon Man

doi:10.1039/d2ce00747a

Cited by 5 publications

(6 citation statements)

References 78 publications

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“…Therefore, even upon desorption, guest H 2 O molecules remained. This observation affirms the role of lattice water in CuCP-1 in the transformation into CuCP-2, leading to the formation of two constituent bridgehead μ 3 -OH groups …”

Section: Resultssupporting

confidence: 82%

“…This observation affirms the role of lattice water in CuCP-1 in the transformation into CuCP-2, leading to the formation of two constituent bridgehead μ 3 -OH groups. 57 Considering the high water uptake, structural stability, and hydrogen bonding among the guest water, sulfonate functional group, and imidazole molecules, the pelletized samples of CuCP-1 and CuCP-2 were subjected to AC impedance measurements under variable relative humidity (RH) and temperatures to evaluate their proton conductivities (Figures 4 and S11 and Table S2). Proton conductivity increased with the humidity for both compounds.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Dimensional Crossover and Proton Conductivity in Copper-Based Coordination Polymers by Coordinative Guest Insertion

Oruganti,

Kim,

Lim

2024

Crystal Growth & Design

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Metal−organic materials (MOMs) are receiving widespread interest for use in many energy-related applications due to their tunable structure attained by the deliberate selection of metal and ligand components and their associated structure− property relationships. In this work, we demonstrate the dimensional crossover of discrete metal−organic polyhedra, CuMOP-3 (0-D, [Cu 24 (5-sip) 24 (S) 24 ]•xS; 5-sip = 5-sulfoisophthalic acid, C 8 O 7 H 5 S), into Cu-based coordination polymers, CuCP-1 (2-D, [Cu(Im) 4 •Cu 2 (Im) 4 (5-sip) 2 ]•2CH 3 OH) and CuCP-2 (3-D, [Cu 4 (μ 3 -OH) 2 (Im) 2(5-sip) 2 ]•2H 2 O), using the coordinative guest (imidazole (Im, C 3 N 2 H 4 ) and H 2 O) insertion method. Specifically, the variation in the coordination environment at the metal center and secondary building units (SBUs) in response to these guest molecules as well as the changes in the coordination mode of the sulfonate (R-SO 3 − ) functional group in the hemilabile 5-sip ligand induced overall structural and dimensionality changes. Furthermore, the transformation of dimensionality resulted in materials having improved thermal and chemical stabilities along with other physical properties (gas sorption and proton conductivity). This study introduces a new design strategy for achieving dimensional crossover in MOMs by involving both hemilabile organic linkers and coordinative guest insertions.

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Section: Resultssupporting

confidence: 82%

Section: ■ Results and Discussionmentioning

confidence: 99%

Dimensional Crossover and Proton Conductivity in Copper-Based Coordination Polymers by Coordinative Guest Insertion

Oruganti,

Kim,

Lim

2024

Crystal Growth & Design

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“…Finally, the 1,5-NDS 2– ligand connects the adjacent planes to generate an extended 3D framework (Figure d). Topological analysis demonstrates that the overall structure of 1 is a 3D well-known dia network with the point symbol of 6 6 (Figure e). − Moreover, many hydrogen bonds such as O7–H7···O3, O8–H8···O4 and O8–H8···O6 (Table S2) between OH – and sulfonate groups are formed, which further enhance the stability of CP 1 .…”

Section: Results and Discussionmentioning

confidence: 99%

Two Water-Stable Zn(II) Coordination Polymers as Luminescent Sensors for Detection of Uric Acid in Serum, MnO₄^–, and Cr(VI) Oxo-Anions in Tap Water

Zhao,

Feng,

et al. 2024

Crystal Growth & Design

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Two novel coordination polymers (CPs), [Zn2(μ-OH)2(μ-1,5-NDS-κ2 O:O′)(μ-Mbimb-κ2 N:N′)] n (1) and {[Zn(CH3COO-κ1 O)(μ-bbimb-κ2 N:N′)1.5](1,5-NDS)0.5} n (2), were synthesized by hydrothermal reaction of Zn(Ac)2·2H2O with 1,5-naphthalenedisulfonate (1,5-NDS2–), 1,4-bis(2-methyl-1H-imidazole-1-yl)butane (Mbimb), or 1,4-bis(1H-benzimidazol-1-yl)butane (bbimb). In the crystal structure of 1, the Zn(II) centers are connected by μ-OH– anions into an infinite –[Zn(OH)] n – chain, which is further linked by Mbimb and 1,5-NDS2– to form a 3D dia network. In 2, the Zn(II) centers are linked by bbimb ligands into a 2D (6,3) brick wall layer with Ac– as dangling arms threaded into the space of adjacent layers, resulting in a 2D → 3D polythreading structure. Luminescent studies reveal that both CPs have excellent luminescence stability and can selectively detect uric acid (UA), MnO4 –, and Cr(VI) oxo-anions in aqueous solutions with high quenching efficiency. The limits of detection toward UA, MnO4 –, CrO4 2–, and Cr2O7 2– are 0.46, 4.33, 5.50, and 1.60 μM for CP 1 and 5.63, 2.84, 7.60, and 2.90 μM for CP 2, respectively. Moreover, the two CPs can also serve as luminescence sensors to detect UA in serum and MnO4 – and Cr(VI) oxo-anions in tap water. The luminescent films of the CPs were also prepared for visual detection of UA, MnO4 –, CrO4 2–, and Cr2O7 2– with the naked eye.

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“…How to cite this article: M. Huang, L. Jiao, J. Yang, D. Ning, J. Xu, Q. Wu, Z. Weng, Appl Organomet Chem 2024, 38 (7), e7536. https://doi.…”

Section: Conflict Of Interest Statementmentioning

confidence: 99%

“…[1][2][3] Within the realm of material science, the modulating of the energy gap is not only a focal point of theoretical research but also crucial for transformative technological advancements through material property regulation. [4][5][6][7] Acquiring the modulation strategy of the energy gap provides a foundation for various key areas such as efficient catalysts, [8][9][10] novel semiconductors/superconductors, 11,12 high-performance photovoltaic materials, [13][14][15] advanced electronic devices, 16 and optical instruments. 17 Therefore, the exploration of rational approaches to adjusting energy levels has gradually become a central topic in materials science.…”

Section: Introductionmentioning

confidence: 99%

Regulating effect of the halogen atoms on the cofacial dinuclear Schiff base complexes: Synthesis, spectroscopy, electrochemistry, and DFT calculations

Huang,

Jiao,

Yang

et al. 2024

Applied Organom Chemis

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The present study reports the synthesis and characterization of two new halogenated Schiff base copper (II) derivatives, namely [CuII2(3‐Cl‐Salmphen)2] (Cu‐Cl‐Salmphen) and [CuII2(3‐Br‐Salmphen)2] (Cu‐Br‐Salmphen), which were characterized by UV–Vis, FT‐IR, 1H‐NMR, and 13C‐NMR spectroscopy. Single crystal structural analysis revealed that each complex contains two crystallography independent, distorted copper centers, where each Cu center exhibits the same coordination environment with N2O2 donor atoms from two different ligands. To investigate the substitution effect of halogen atoms on the properties of the complexes, the non‐halogenated isomer [CuII2(H‐Salmphen)2] (Cu‐H‐Salmphen) was introduced for comparison. The differences between the halogenated and the non‐halogenated analogues were compared through spectroscopic, electrochemical, DFT, and TD‐DFT theoretical calculations. The optical experimental results indicated that the introduction of halogen atoms decreased the energy gap between the ground and excited states, leading to enhanced optical absorption capabilities of the compounds. Electrochemical tests showed that the halogenated analogues exhibited better electrochemical performance, and with the increase in an atomic number of the halogen atoms, the compounds displayed a gradual increase in cyclic voltammetry peak areas, diffusion coefficients, and conductivities. Theoretical calculations revealed that the introduction of halogen atoms simultaneously expanded the conjugated area of the molecules, decreased the HOMO‐LUMO energy levels of the complexes, and strengthened the intramolecular interactions. Furthermore, the potential mechanism of the tuning effect of halogen atoms on the charge transfer process was proposed.

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Proton-conducting metal–organic frameworks with linkers containing anthracenyl and sulfonate groups

Abstract: Co(dia)1.5(Hsip)(H2O)·H2O (1) and Zn2(μ-OH)(dia)2(sip)·2H2O (2) were prepared from the same set of ligand precursors. They exhibited bnn and dia topologies, respectively. Factors that contributed to the higher proton conductivity of 1 were presented.

Cited by 5 publications

References 78 publications

Dimensional Crossover and Proton Conductivity in Copper-Based Coordination Polymers by Coordinative Guest Insertion

Dimensional Crossover and Proton Conductivity in Copper-Based Coordination Polymers by Coordinative Guest Insertion

Two Water-Stable Zn(II) Coordination Polymers as Luminescent Sensors for Detection of Uric Acid in Serum, MnO₄^–, and Cr(VI) Oxo-Anions in Tap Water

Regulating effect of the halogen atoms on the cofacial dinuclear Schiff base complexes: Synthesis, spectroscopy, electrochemistry, and DFT calculations

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Proton-conducting metal–organic frameworks with linkers containing anthracenyl and sulfonate groups

Abstract: Co(dia)1.5(Hsip)(H2O)·H2O (1) and Zn2(μ-OH)(dia)2(sip)·2H2O (2) were prepared from the same set of ligand precursors. They exhibited bnn and dia topologies, respectively. Factors that contributed to the higher proton conductivity of 1 were presented.

Cited by 5 publications

References 78 publications

Dimensional Crossover and Proton Conductivity in Copper-Based Coordination Polymers by Coordinative Guest Insertion

Dimensional Crossover and Proton Conductivity in Copper-Based Coordination Polymers by Coordinative Guest Insertion

Two Water-Stable Zn(II) Coordination Polymers as Luminescent Sensors for Detection of Uric Acid in Serum, MnO4–, and Cr(VI) Oxo-Anions in Tap Water

Regulating effect of the halogen atoms on the cofacial dinuclear Schiff base complexes: Synthesis, spectroscopy, electrochemistry, and DFT calculations

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Resources

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Two Water-Stable Zn(II) Coordination Polymers as Luminescent Sensors for Detection of Uric Acid in Serum, MnO₄^–, and Cr(VI) Oxo-Anions in Tap Water