Wang X.-Z., Chen Y., Cao X.-M. et al. · Angewandte Chemie - International Edition · 2025 · e202413115
Open a family to keep every result attached to its sample, method and conditions.
Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.
The Cu3(HHTP)(DHBQ)1.5/GCE electrode shows strong DPV sensing performance for 5-HT, uric acid and caffeic acid, including a 0.025 uM UA LOD among strong reported UA-sensing materials.
Caveat: Application electrode is a composite MOF/Nafion/GCE device; sensing results should not be interpreted as intrinsic bulk transport alone.
6 · Electrochemical Analysis with MOF-Coated Electrodes · Figure 4; Table S6 · Linked to 4 structured results
The target MOF is assigned to an AA-serrated stacked hcb framework with triclinic P1 unit cell based on DFT energetics and Pawley-refined PXRD.
Caveat: The authors note the AA-serrated and AA-inclined energies are very close, indicating stacking faults may form.
2-3 · Structural Characterization on the Sample · Figure 1b-c; Figure S4; Table S3-S4 · Linked to 3 structured results
Compared with Cu3(HHTP)2/GCE, the larger pores of Cu3(HHTP)(DHBQ)1.5/GCE facilitate diffusion of small redox probes and give higher apparent diffusion coefficients.
Caveat: Diffusion coefficients are extracted from coated electrodes containing Nafion and GCE substrate; values for control are read from plot labels.
5-6 · Electrochemical Analysis with MOF-Coated Electrodes · Figure 3 · Linked to 6 structured results
Inserting the linear DHBQ ligand between HHTP nodes expands the pore aperture of a 2D conjugated MOF to a mesoporous 3.2 nm pore without using extended multitopic ligands.
Caveat: Pore-size distribution also has a 1.4 nm peak attributed to counterions and adsorbates.
4,7 · Structural Characterization; Conclusions · Figure 1f · Linked to 3 structured results
DFT indicates out-of-plane c-direction charge transport through interlayer pi-pi interactions, while in-plane transport is sluggish because the frontier orbitals are localised.
Caveat: Experimental conductivity is measured on pressed powder pellets and is thermally activated, so macroscopic transport is dominated by grain boundaries rather than the ideal metallic c-direction model.
4 · Electronic Properties of Cu3(HHTP)(DHBQ)1.5(3-) · Figure 2 · Linked to 3 structured results
The measured pellet conductivity is thermally activated, and the authors attribute the activation energy to charge hopping across grain boundaries.
Caveat: The grain-boundary interpretation is inferential; no single-crystal or oriented-film transport measurement is reported.
4 · Electronic Properties of Cu3(HHTP)(DHBQ)1.5(3-) · Figure 2d · Linked to 3 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Bare glassy carbon electrode reference | GCE | unknown · UnknownNon-MOF electrode reference used only for electrochemical sensing comparisons. | 6 · Electrochemical Analysis with MOF-Coated Electrodes · Figure 4 |
| Cu3(HHTP)2 control 2D c-MOFBrowse family: Cu₃(HHTP)₂ / Cu–HHTP | Cu3(HHTP)2Cu catecholate coordination units · HHTP | 2D · PristineLiterature Cu3(HHTP)2 control used for coated-electrode and surface-area comparison. | 2 · Materials and Methods |
| Cu3(HHTP)(DHBQ)1.5 / Cu3(HHTP)(DHBQ)1.53 ligand-inserted 2D c-MOF | Network formula reported as Cu3(HHTP)(DHBQ)1.5/1.53; elemental-analysis formula Cu3(HHTP)(DHBQ)1.5(H2O)19.00(H2en)1.66; Pawley empirical formula C108H36O48Cu12Square-planar CuO4 coordination units with mostly Cu(II) and trace Cu(I) · 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) multitopic ligand and 2,5-dihydroxybenzoquinone (DHBQ) linear ligand | 2D · PristineAA-serrated stacked 2D hcb framework; triclinic P1 by Pawley refinement of PXRD with DFT model; mesoporous channels from ligand insertion. | 2-4 · Results and Discussion - Design and Synthesis; Structural Characterization · Scheme 1; Figure 1; Table S4/S5 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Bare GCE reference electroderesearch_0598__mat__bare_gce_reference | Electrode · Pristine Control · Unknown | Polished and rinsed GCE without MOF coating.glassy carbon electrode (GCE), 3 mm diameter | 6 · Electrochemical Analysis with MOF-Coated Electrodes · Figure 4 |
| Cu3(HHTP)2-coated GCE controlresearch_0598__mat__cu_hhtp2_control | Electrode · Pristine Control · Composite | Cu3(HHTP)2/Nafion suspension prepared and drop-cast using the same procedure as the target MOF electrode.glassy carbon electrode (GCE), 3 mm diameter | 3 · Electrochemical Measurements |
| Cu3(HHTP)2 powder controlresearch_0598__mat__cu_hhtp2_control | Powder · Pristine Control · Pristine Framework | Prepared according to literature and used for comparison with the ligand-inserted MOF. | 2 · Materials and Methods |
| AA-serrated DFT model of Cu3(HHTP)(DHBQ)1.5/1.53research_0598__mat__cu_hhtp_dhbq_2d_cmof | Model · Model System · Model | Optimized spin-polarized plane-wave DFT model with AA-serrated stacking. | 3 · Structural Modeling · Figure S3; Table S3 |
| As-prepared Cu3(HHTP)(DHBQ)1.5/1.53 black powderresearch_0598__mat__cu_hhtp_dhbq_2d_cmof | Powder · Target Sample · Pristine Framework | Black powder formed at water/n-butanol liquid-liquid interface, separated by centrifugation, washed with water and acetone, and dried at 85 deg C for 12 h. | 2 · Synthesis of Cu3(HHTP)(DHBQ)1.5(3-) |
| Cu3(HHTP)(DHBQ)1.5/1.53-coated GCEresearch_0598__mat__cu_hhtp_dhbq_2d_cmof | Electrode · Composite Sample · Composite | MOF/Nafion suspension drop-cast on polished GCE and dried naturally.glassy carbon electrode (GCE), 3 mm diameter | 3 · Electrochemical Measurements |
| Pressed pellet of Cu3(HHTP)(DHBQ)1.5/1.53 powderresearch_0598__mat__cu_hhtp_dhbq_2d_cmof | Pellet · Target Sample · Pristine Framework | MOF powder pressed into a pellet for four-probe conductivity; reported area 30 mm2 and thickness 0.2 mm.0.2 mm | 2 · Materials and Methods |