Zhou X.-C., Liu C., Su J. et al. · Angewandte Chemie - International Edition · 2023 · e202211850
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.
Mixed-linker sensing performance is nonlinear rather than an average of the single-linker analogues; Mn2[TTF]0.78[NiS4]0.22 gives the highest low-concentration SNR and lowest reported theoretical LODs.
Caveat: Some LOD and multi-metric values are summarised graphically in Figure 4f and not fully numerical in text.
5 · Results and Discussion · Figure 4f · Linked to 5 structured results
Mn2[NiS4] is suited to rapid VOC detection under high humidity, with fast response/recovery, 80% RH resistance, 90.4 degree WCA, and very low power consumption.
Caveat: Application conclusion is based on chemiresistive device tests under the authors' custom chamber conditions.
6 · Conclusion · Linked to 5 structured results
SCXRD, ICP, EDX, and PXRD support simultaneous incorporation of TTF and Ni-bis(dithiolene) linkers in Mn2[TTF]0.49[NiS4]0.51 without phase separation, and related series members are isostructural.
Caveat: Single-crystal refinement is directly reported only for x = 0.49/0.51; other compositions are assigned by PXRD and ICP.
2 · Results and Discussion · Figure 1 · Linked to 4 structured results
Electrical conductivity decreases across the series as the NiS4 fraction increases, spanning roughly three orders of magnitude from Mn2[TTF] to Mn2[NiS4].
Caveat: Conductivity values are powder compact/two-probe values and depend on geometry and compaction.
4 · Results and Discussion · Table S4 · Linked to 5 structured results
Increasing NiS4 fraction switches the dominant semiconducting behaviour from p-type for TTF-rich frameworks to n-type for NiS4-rich frameworks.
Caveat: Carrier-type assignment uses supported electrodes and Mott-Schottky/photocurrent/photovoltage evidence rather than Hall measurements.
4 · Results and Discussion · Figure 3 · Linked to 5 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Mn2[NiS4] | Mn2[NiS4]Mn2+ · [NiS4] nickel-bis(dithiolene) tetracarboxylate | 3D · PristineSingle-linker Ni-bis(dithiolene) analogue; isostructural reference for the mixed-linker series. | 3 · Results and Discussion · Figure 2 |
| Mn2[TTF] | Mn2[TTF]Mn2+ · [TTF] tetrathiafulvalene tetrabenzoate | 3D · PristineSingle-linker TTF analogue; isostructural reference for the mixed-linker series. | 2 · Results and Discussion |
| Mn2[TTF]0.24[NiS4]0.76 | Mn2[TTF]0.24[NiS4]0.76Mn2+ · [TTF] and [NiS4] mixed linkers | 3D · PristineMixed-linker member assigned by ICP-AES; PXRD similar to the series. | 3 · Results and Discussion · Table S3 |
| Mn2[TTF]0.49[NiS4]0.51 | Mn2[TTF]0.49[NiS4]0.51Mn2+ · [TTF] and [NiS4] mixed linkers | 3D · PristineSCXRD-confirmed hexagonal P65 mixed-linker framework with disordered TTF/Ni-bis(dithiolene) fragments. | 2 · Results and Discussion · Figure 1 |
| Mn2[TTF]0.78[NiS4]0.22 | Mn2[TTF]0.78[NiS4]0.22Mn2+ · [TTF] and [NiS4] mixed linkers | 3D · PristineMixed-linker member assigned by ICP-AES; PXRD similar to the single-linker analogues. | 3 · Results and Discussion · Table S3 |
| Mn2[TTF]x[NiS4]1-x mixed-linker MOF series | Mn2[TTF]x[NiS4]1-x, 0 <= x <= 1; solvated hydrate form reported as {Mn2[TTF]x[NiS4]1-x(H2O)2}.(solvent)nMn2+ carboxylate nodes/columns · tetrathiafulvalene tetrabenzoate ([TTF]) and Ni-bis[1,2-di(4-carboxylphenyl)-1,2-dithiolene] ([NiS4]) | 3D · PristineIsostructural mixed-linker porous MOF series with one-dimensional channels and stacked redox-active linkers; x varied from 1 to 0. | 2 · Results and Discussion |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Mn2[NiS4] powder/crystalsresearch_0438__mat__mat_mn_nis4 | Powder · Target Sample · Pristine Framework | Pristine MOF crystals/powder used for composition, PXRD, porosity, spectroscopy, and related characterisation. | 3 · Results and Discussion · Figure 2 |
| Mn2[TTF]0.24[NiS4]0.76 powder/crystalsresearch_0438__mat__mat_mn_ttf024_nis4076 | Powder · Target Sample · Pristine Framework | Pristine MOF crystals/powder used for composition, PXRD, porosity, spectroscopy, and related characterisation. | 3 · Results and Discussion · Figure 2 |
| Mn2[TTF]0.49[NiS4]0.51 powder/crystalsresearch_0438__mat__mat_mn_ttf049_nis4051 | Powder · Target Sample · Pristine Framework | Pristine MOF crystals/powder used for composition, PXRD, porosity, spectroscopy, and related characterisation. | 3 · Results and Discussion · Figure 2 |
| Mn2[TTF]0.49[NiS4]0.51 single crystalresearch_0438__mat__mat_mn_ttf049_nis4051 | Single Crystal · Target Sample · Pristine Framework | Dark black single crystal used for SCXRD refinement.0.12 x 0.05 x 0.05 mm3 crystal size | 26 · Table S1 · Table S1 |
| Mn2[TTF]0.78[NiS4]0.22 powder/crystalsresearch_0438__mat__mat_mn_ttf078_nis4022 | Powder · Target Sample · Pristine Framework | Pristine MOF crystals/powder used for composition, PXRD, porosity, spectroscopy, and related characterisation. | 3 · Results and Discussion · Figure 2 |
| Mn2[TTF] powder/crystalsresearch_0438__mat__mat_mn_ttf | Powder · Target Sample · Pristine Framework | Pristine MOF crystals/powder used for composition, PXRD, porosity, spectroscopy, and related characterisation. | 3 · Results and Discussion · Figure 2 |
| Mn2[TTF]x[NiS4]1-x powder compact seriesresearch_0438__mat__mat_mn_ttf_nis4_series | Pellet · Paper Level Unspecified · Pristine Framework | Powder compacts/devices used for two-probe IV conductivity measurements under vacuum.0.0189-0.0251 cm | 29 · Table S4 · Table S4 |
| Mn2[TTF]x[NiS4]1-x FTO working electrodesresearch_0438__mat__mat_mn_ttf_nis4_series | Electrode · Paper Level Unspecified · Composite | 2 mg MOF dispersed in 0.04% Nafion/EtOH, drop-cast on cleaned FTO and dried at 60 C for 15 min; PMMA insulation used.FTO glass | 5 · Electrochemical characterization |
| Mn2[TTF]x[NiS4]1-x powder seriesresearch_0438__mat__mat_mn_ttf_nis4_series | Powder · Paper Level Unspecified · Pristine Framework | Series-level pristine powders/crystals for comparative structural and sorption measurements. | 3 · Results and Discussion · Figure 2 |
| Mn2[TTF]x[NiS4]1-x chemiresistive thin-film devicesresearch_0438__mat__mat_mn_ttf_nis4_series | Thin Film · Target Sample · Pristine Framework | MOF dispersed in ethanol and dropped into the electrode window for VOC sensing at 2 V bias.Si/SiO2 (275 nm) with 25 nm Ti / 50 nm Au source-drain electrodes and PDMS cavity · not reported; microcrystalline particle widths about 1 um | 5 · Device fabrication |