Wu H., Yang F., Lv X.-L. et al. · Journal of Materials Chemistry A · 2017 · 14525-14529
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.
BUT-83 is claimed to have the highest proton conductivity among reported -COOH-functionalised MOFs at the time, reaching 3.9 x 10^-2 S cm^-1 at 80 deg C and 97% RH.
Caveat: The comparison is against selected literature values and conditions differ across MOFs.
14528 · summary · Table 1; Table S3 · Linked to 4 structured results
BUT-83 retains crystallinity and framework structure after boiling-water and concentrated-HCl treatments for 24 h, and after one month of impedance testing.
Caveat: Stability evidence is based on PXRD pattern retention, N2 isotherm retention and qualitative conductivity durability; no quantitative post-treatment defect analysis is reported.
14526-14527 · main text · Fig. 2 · Linked to 3 structured results
Uncoordinated carboxylic acid groups in BUT-83 are the main reason for its much higher proton conductivity relative to the methyl analogue Co(DpyDtolP).
Caveat: Control synthesis details are cited only as a literature method; powder Co(DpyDtolP) conductivity is first-hand but structural details are not fully reproduced.
14528 · main text · Table S2 · Linked to 4 structured results
The high carboxylic acid density in BUT-83 pores is proposed to be responsible for its high conductivity, but the authors also emphasise synergistic effects of functional-group properties, amount, pore size/shape and density.
Caveat: Density is calculated from pore volume and formula assumptions; comparisons are to literature materials with different conditions.
14528 · main text · Table 1 · Linked to 3 structured results
The authors assign dominant Grotthuss proton conduction through hydrogen-bonding networks formed by -COOH groups and adsorbed water in the channels.
Caveat: Mechanistic assignment is inferred from activation energy and structural/water-uptake arguments; no direct proton dynamics measurement is reported.
14528 · main text · Fig. 3c; Fig. S6 · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| BUT-83 | [Co(DCDPP)].5H2O; crystallographic framework formula reported as C44H26CoN6O4 after squeeze in Table S1 and C44 H24 Co N6 O4 in the CIFCo(II) centres bound by pyrrolic N atoms and pyridyl N donors · 5,15-di(4-carboxylphenyl)-10,20-di(4-pyridyl)porphyrin (H2DCDPP/DCDPP) | 3D · PristineTrigonal R-3 porphyrinic Co-MOF with one-dimensional open channels along the c-axis; pyridyl N donors coordinate to Co while carboxylic acid groups remain uncoordinated in the pores. | 14526 · main text · Fig. 1 |
| Co(DpyDtolP) | Co(DpyDtolP)Co porphyrinic centres · DpyDtolP methyl-substituted porphyrinic linker | unknown · PristineIsostructural methyl analogue of BUT-83 with -CH3 groups instead of -COOH groups. | 14527 · main text · Table S2 referenced |
| H2DCDPP ligand | 5,15-di(4-carboxylphenyl)-10,20-di(4-pyridyl)porphyrinPorphyrinic bifunctional ligand bearing two pyridyl donors and two carboxyphenyl groups | 0D · UnknownDiscrete organic ligand precursor used to construct BUT-83. | S4 · Synthesis · Scheme 1 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Activated/desolvated BUT-83research_0270__mat__mat_but83 | Powder · Target Sample · Pristine Framework | DMF soak, acetone exchange, dynamic vacuum, outgas activation before adsorption; further drying before proton conductivity measurement. | S9 · Activation of the BUT-83 sample |
| BUT-83 after one-month impedance testresearch_0270__mat__mat_but83 | Powder · Target Sample · Pristine Framework | Sample recovered after impedance testing for one month. | 14527 · main text · Fig. 2b; Fig. 3d |
| As-synthesised BUT-83 deep purple/hexagon-shaped crystalsresearch_0270__mat__mat_but83 | Single Crystal · Target Sample · Pristine Framework | Solvothermal product harvested by filtration, washed with DMF and acetone, and dried in air. | S6 · Synthesis of [Co(DCDPP)].5H2O (BUT-83) |
| BUT-83 pressed powder plate for proton conductionresearch_0270__mat__mat_but83 | Pellet · Target Sample · Pristine Framework | ca. 80-100 mg MOF powder pressed under 1000 kg cm^-2 for 2 min; both sides attached to silver wires with silver paste.thickness measured by micrometer; length 1.0 cm and width 0.4 cm | S10 · Proton conduction measurement · Fig. S1 |
| BUT-83 after boiling-water and concentrated-HCl treatmentsresearch_0270__mat__mat_but83 | Powder · Target Sample · Pristine Framework | Separate samples soaked in boiling water and concentrated hydrochloric acid aqueous solution for 24 h. | 14526 · main text · Fig. 2a |
| Co(DpyDtolP) powderresearch_0270__mat__mat_co_dpydtolp | Powder · Pristine Control · Pristine Framework | Synthesised according to literature method; PXRD shown in SI. | S6 · Synthesis of Co(DpyDtolP) · Fig. S7; Table S2 |
| Co(DpyDtolP) single crystal literature sampleresearch_0270__mat__mat_co_dpydtolp | Single Crystal · Paper Level Unspecified · Pristine Framework | Previously reported single-crystal sample containing only water molecules; cited for comparison. | S15 · Supplementary tables and figures · Table S2 |
| H2DCDPP ligand purple solidresearch_0270__mat__mat_h2dcdpp_ligand | Powder · Unknown · Unknown | Organic ligand isolated after hydrolysis, extraction, washing, drying and solvent removal. | S6 · Synthesis of H2DCDPP |