Zhong R., Cui L., Yu K. et al. · Inorganic Chemistry · 2021 · 9869-9879
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.
Compounds 1 and 2 act as bifunctional electrochemical sensor materials for nitrite reduction and ascorbic acid oxidation, with compound 2 giving the strongest CAT response.
Caveat: The paper reports response trends and CAT order; exact analytical figures of merit such as sensitivity, detection limit, and selectivity are not tabulated.
p008 · Bifunctional Electrocatalytic Properties · Figure 12 · Linked to 3 structured results
The two arsenotungstate derivatives show better cycling stability than the unmodified control, attributed to insoluble metal-organic units stabilising the Dawson polyanion in acidic electrolyte.
Caveat: The cyclic test is electrode-level performance over 5000 cycles; long-term device metrics are not reported.
p006 · Capacitive Performance · Figure 9a · Linked to 4 structured results
The article claims good electrical conductivity but reports EIS/interfacial resistance of composite GCE electrodes rather than intrinsic bulk electrical conductivity of pristine crystals or powders.
Caveat: No two-probe/four-probe conductivity, Hall, Seebeck, or thermoelectric measurement was found.
p001 · Abstract · Linked to 4 structured results
Compound 2 has the best capacitance and cycling performance because its Cu-pz-Cl metal-organic bilayer/POMOF host-guest structure provides a more continuous ion/electron transmission network and greater structural stability.
Caveat: Mechanistic attribution is the authors' interpretation; no direct conductivity measurement or porosity metric is reported.
p006 · Capacitive Performance · Figure 9 · Linked to 4 structured results
Introducing metal-organic units into the Dawson {As2W18} system increases capacitance relative to the unmodified zero-dimensional control by providing additional redox centres and ordered ion/electron-transfer channels.
Caveat: Electrode contains acetylene black and Nafion, so results are application-electrode performance rather than intrinsic bulk conductivity.
p005 · Capacitive Performance · Figure 7c · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Compound 1, [{CuII(bim)2}3(As2W18O62)] | C36H24As2Cu3N24O62W18CuII centres linking Dawson-type {As2W18O62} polyoxoanions · 2,2'-biimidazole (bim) | 2D · Pristine2,6-connected two-dimensional hybrid layer based on asymmetrically modified {As2W18} anions and {Cu(bim)2} linkers, aggregated into a 3D network with one-dimensional holes. | p001 · Abstract |
| Compound 2, [(CuI10pz10Cl4)(As2W18O62)] | C40H40As2Cl4Cu10N20O62W18CuI-pyrazine-chloride metal-organic host network with embedded Dawson {As2W18O62} clusters · pyrazine (pz); chloride bridges | 3D · PristineHost-guest 3D POMOF with Cu-pz-Cl network, 20-member square rings, 16-member irregular rings, and embedded eight-node {As2W18} guest molecules. | p001 · Abstract |
| Unmodified zero-dimensional Dawson arsenotungstate control, (H2bih)3[As2W18O62].2H2O | C36H64As2N12O64W18Dawson-type {As2W18O62} polyoxometalate anion; no transition-metal organic network · 1,6-bis(imidazole)hexane (bih) counter-cation/protonated ligand | 0D · PristineUnmodified zero-dimensional Dawson arsenotungstate obtained when flexible bih replaces bim or pz; used as electrochemical control. | p002 · Results and Discussion - Synthesis |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Compound 1 dark-blue crystalsresearch_0514__mat__compound_1_cu_bim_as2w18 | Single Crystal · Target Sample · Pristine Framework | Hydrothermal product; isolated by filtration, washed with distilled water, and dried at room temperature. | p003 · Synthesis of compound 1 |
| 1-GCEresearch_0514__mat__compound_1_cu_bim_as2w18 | Electrode · Composite Sample · Composite | Compound 1/acetylene black slurry drop-cast on polished GCE, dried 2 h at room temperature, then Nafion drop-coated and dried.glassy carbon electrode, 3 mm diameter · 5 uL slurry drop plus 5 uL Nafion; mass loading about 0.052 mg | p005 · Preparation of the Electrodes |
| Compound 2 dark-blue crystalsresearch_0514__mat__compound_2_cu_pz_cl_as2w18 | Single Crystal · Target Sample · Pristine Framework | Hydrothermal product; isolated by filtration, washed with distilled water, and dried at room temperature. | p003 · Synthesis of compound 2 |
| 2-GCEresearch_0514__mat__compound_2_cu_pz_cl_as2w18 | Electrode · Composite Sample · Composite | Compound 2/acetylene black slurry drop-cast on polished GCE, dried 2 h at room temperature, then Nafion drop-coated and dried.glassy carbon electrode, 3 mm diameter · 5 uL slurry drop plus 5 uL Nafion; mass loading about 0.052 mg | p005 · Preparation of the Electrodes |
| {As2W18O62} control dark crystalsresearch_0514__mat__control_as2w18_bih | Single Crystal · Pristine Control · Pristine Framework | Prepared by a similar hydrothermal method using bih; isolated by filtration, washed with distilled water, and dried at room temperature. | p003 · Synthesis of control compound |
| {As2W18O62}-GCEresearch_0514__mat__control_as2w18_bih | Electrode · Pristine Control · Composite | Unmodified Dawson control material modified GCE; electrode preparation appears to follow the same slurry/Nafion procedure.glassy carbon electrode · mass loading about 0.052 mg inferred from shared electrode preparation | p002 · General Methods and Materials |