Marshall C.R., Dvorak J.P., Twight L.P. et al. · Journal of the American Chemical Society · 2022 · 5784-5794
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.
Fe(TA)2 nanoparticles remain colloidally stable in DMF under anaerobic conditions for at least three months without conventional capping ligands.
Caveat: Stability under electrolyte bias is lower; particles in 0.1 M TBAPF6 aggregated over days.
5786 · Size-Tunable Synthesis · Figure S13 · Linked to 1 structured result
Adding carbon black and PVDF to 84 nm Fe(TA)2 gives a more conductive composite film than pristine 84 nm air-made films, but this is a composite value rather than intrinsic Fe(TA)2 transport.
Caveat: Composite includes an extrinsic conductive additive and binder.
28 · S4 Additional Electrochemical Data · Figure S28 and Table S8 · Linked to 2 structured results
Fe(TA)2 nanoparticle optical charge-transfer bands shift with particle size, giving the first reported size-dependent optical shifts for MOF materials in this system.
Caveat: The exact physical origin is not assigned; authors discuss and rule out several possibilities.
5787 · Size-Dependent Optical Properties · Figure 3 · Linked to 4 structured results
Increasing 1-methylimidazole modulator equivalents decreases Fe(TA)2 particle size from 130 nm to 5.5 nm under the reported one-pot solvothermal route.
Caveat: SEM cannot fully resolve the two smallest particle sizes, which are assigned by Scherrer analysis and supported by Le Bail fitting.
5786 · Size-Tunable Synthesis · Figure 2 · Linked to 3 structured results
Smaller BF4- anions access interior Fe(TA)2 redox sites more effectively than bulkier PF6- anions, increasing anion uptake and electron transfer in QCM/CV experiments.
Caveat: QCM mass analysis assumes all mass change is due to unsolvated anions; potential solvation was not considered.
5790 · Size-Dependent Redox Chemistry · Figure 6 and Table S7 · Linked to 4 structured results
Fe(TA)2 thin-film conductivity increases as nanoparticle size decreases, attributed mainly to denser inter-particle packing rather than greater oxidation.
Caveat: Air exposure increases conductivity by oxidation/mixed valency; pristine air-free values are much lower.
5791 · Charge transport measurements · Figure 7 · Linked to 6 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Cobalt triazolate, Co(TA)2 | Co(TA)2; TA = triazolateCo triazolate framework nodes · triazolate | 3D · PristinePreliminary nanosized CoTA2 products by PXRD and SEM with decreasing particle size upon 1-methylimidazole modulation. | 10 · S2 Discussion of Fe(TA)2 nanoparticle syntheses · Figure S7 |
| Iron(II) 1,2,3-triazolate, Fe(TA)2 | Fe(TA)2; TA = 1,2,3-triazolateFe(II) triazolate secondary building units; low-spin Fe(TA)2 phase assigned by PXRD. · 1,2,3-triazolate | 3D · PristineConductive metal-triazolate MOF; PXRD matched to the low-spin Fe(TA)2 CIF and nanoparticles compared with bulk crystalline structure. | 5784 · Abstract and Results · Figure 1 |
| Fe(TA)2 nanoparticle/carbon black/PVDF composite film | 90 wt% Fe(TA)2 + 5 wt% carbon black + 5 wt% PVDFFe(TA)2 MOF component · 1,2,3-triazolate in Fe(TA)2 plus PVDF binder | 3D · CompositeComposite conductive film containing 84 nm Fe(TA)2 nanoparticles, carbon black and PVDF. | 28 · S4 Additional Electrochemical Data · Figure S28 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| CoTA2 bulk and nanosized series with 1-methylimidazoleresearch_0217__mat__mat_cota2 | Powder · Target Sample · Pristine Framework | Preliminary CoTA2 syntheses using varying 1-methylimidazole equivalents. | 10 · S2 Discussion of Fe(TA)2 nanoparticle syntheses · Figure S7 |
| 16 nm Fe(TA)2 drop-cast glassy-carbon electroderesearch_0217__mat__mat_feta2 | Electrode · Target Sample · Pristine Framework | 16 nm particles suspended in DMF at 7.7 mg/mL, 7 uL drop-cast onto polished GC and dried.Glassy carbon electrode | 5792 · CV Experiments · Figure 5b,c |
| 16 nm Fe(TA)2 spin-coated QCM filmresearch_0217__mat__mat_feta2 | Electrode · Target Sample · Pristine Framework | 16 nm Fe(TA)2 particles spin-coated from DMF onto QCM electrodes until at least 4 ug on the surface.Pt/Ti-coated 5 MHz AT-cut QCM electrode | 5792 · CV Experiments · Figure 6 and Table S7 |
| 25 nm Fe(TA)2 doctor-bladed thin film under N2research_0217__mat__mat_feta2 | Thin Film · Target Sample · Pristine Framework | Doctor-bladed from 25 nm nanoparticle dispersion under N2.Glass microscope slide · 2.6 um in Table S9 (table header says thickness cm, interpreted from context and FIB-SEM as um-scale film) | 27 · S4 Additional Electrochemical Data · Table S9 |
| 84 nm Fe(TA)2 composite thin film with carbon black and PVDFresearch_0217__mat__mat_feta2_carbon_pvdf_composite | Thin Film · Composite Sample · Composite | Doctor-bladed in air from concentrated 84 nm Fe(TA)2 suspension plus 5 wt% carbon black and 5 wt% PVDF.Glass microscope slide · 4.1 um | 28 · S4 Additional Electrochemical Data · Figure S28 |
| 84 nm Fe(TA)2 doctor-bladed thin film under N2research_0217__mat__mat_feta2 | Thin Film · Target Sample · Pristine Framework | Doctor-bladed from 84 nm nanoparticle dispersion under N2.Glass microscope slide · 2.1 um in Table S9 (table header says thickness cm, interpreted from context and FIB-SEM as um-scale film) | 27 · S4 Additional Electrochemical Data · Table S9 |
| Fe(TA)2 thin films doctor-bladed in airresearch_0217__mat__mat_feta2 | Thin Film · Target Sample · Pristine Framework | Doctor-bladed in air; films allowed to sit under ambient aerobic conditions for over 1 week before co-linear four-point-probe measurements.Glass microscope slide · 4.1-6.6 um for bulk, 130 nm and 84 nm films in Table S8 | 27 · S4 Additional Electrochemical Data · Table S8 |
| Fe(TA)2 nanoparticles made with alternate modulatorsresearch_0217__mat__mat_feta2 | Powder · Target Sample · Pristine Framework | Exploratory syntheses using 5-bromo-1-methylimidazole, 1-benzyl-2-methylimidazole, n-butylamine or sodium formate. | 5786 · Size-Tunable Synthesis · Figure 2f and Figure S3 |
| Bulk Fe(TA)2 doctor-bladed thin film under N2research_0217__mat__mat_feta2 | Thin Film · Pristine Control · Pristine Framework | Doctor-bladed from bulk powder dispersion in DMF under N2; dried overnight and under vacuum.Glass microscope slide · 8.6 um in Table S9 (table header says thickness cm, interpreted from context and FIB-SEM as um-scale film) | 27 · S4 Additional Electrochemical Data · Table S9 |
| Bulk Fe(TA)2 powderresearch_0217__mat__mat_feta2 | Powder · Pristine Control · Pristine Framework | Bulk Fe(TA)2 material used as structural, porosity, spectroscopy, CV and film-control reference. | 5786 · Size-Tunable Synthesis · Figure 2 and Figure S8 |
| Fe(TA)2 colloid CV series in 0.1 M TBAPF6/DMFresearch_0217__mat__mat_feta2 | Electrode · Target Sample · Pristine Framework | Colloidal nanoparticles in DMF electrolyte; particle concentration estimated 0.01-0.05 mg/mL.Glassy carbon working electrode in colloidal three-electrode cell | 5791 · CV Experiments |
| Fe(TA)2 nanoparticles, 130 nm SEM sizeresearch_0217__mat__mat_feta2 | Powder · Target Sample · Pristine Framework | 0.055 equivalents 1-methylimidazole to FeCl2; SEM-sized larger nanoparticles. | 12 · S2 Basic characterization · Table S2 |
| Fe(TA)2 nanoparticles, 16 nm SEM sizeresearch_0217__mat__mat_feta2 | Powder · Target Sample · Pristine Framework | 0.709 equivalents 1-methylimidazole to FeCl2; SEM-sized particles. | 12 · S2 Basic characterization · Table S2 |
| Fe(TA)2 nanoparticles, 25 nm SEM sizeresearch_0217__mat__mat_feta2 | Powder · Target Sample · Pristine Framework | 0.436 equivalents 1-methylimidazole to FeCl2; SEM-sized particles. | 12 · S2 Basic characterization · Table S2 |
| Fe(TA)2 nanoparticles, 48 nm SEM sizeresearch_0217__mat__mat_feta2 | Powder · Target Sample · Pristine Framework | 0.218 equivalents 1-methylimidazole to FeCl2; SEM-sized particles. | 12 · S2 Basic characterization · Table S2 |
| Fe(TA)2 nanoparticles, 5.5 nm Scherrer sizeresearch_0217__mat__mat_feta2 | Powder · Target Sample · Pristine Framework | 10.9 equivalents 1-methylimidazole to FeCl2; SEM not fully resolved. | 12 · S2 Basic characterization · Figure S9 and Table S2 |
| Fe(TA)2 nanoparticles, 6.8 nm Scherrer sizeresearch_0217__mat__mat_feta2 | Powder · Target Sample · Pristine Framework | 3.00 equivalents 1-methylimidazole to FeCl2; SEM not fully resolved. | 12 · S2 Basic characterization · Figure S9 and Table S2 |
| Fe(TA)2 nanoparticles, 84 nm SEM sizeresearch_0217__mat__mat_feta2 | Powder · Target Sample · Pristine Framework | 0.109 equivalents 1-methylimidazole to FeCl2; SEM-sized particles. | 12 · S2 Basic characterization · Table S2 |
| Fe(TA)2 nanoparticle series synthesised with 1-methylimidazoleresearch_0217__mat__mat_feta2 | Powder · Target Sample · Pristine Framework | Colloidally stable Fe(TA)2 nanoparticles prepared under N2 in DMF with varying 1-methylimidazole equivalents. | 5786 · Size-Tunable Synthesis · Figure 2 |