Liu J., Fu S., Fu Y. et al. · Journal of the American Chemical Society · 2025 · 18190-18196
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-HHB-w has higher modulus and hardness than Fe-HHB-o, Cu-HHB-w, Cu-BHT-w and reported traditional MOFs, supporting use in wear-resistant electronics.
Caveat: Mechanical comparison with literature MOFs depends on collected literature data in Figure S29.
SI p33 · Figure S29 discussion · Figure S29 · Linked to 6 structured results
The conductivity improvement is not attributed to unintended NH3 doping because EDX detected no N in as-grown Fe-HHB-w, Cu-HHB-w and Cu-BHT-w, and post-treatment of Fe-HHB-o in NH3 did not improve conductivity.
Caveat: No numeric EDX detection limits are reported in the extracted text.
18191 and 18193 · Results and Discussion · Figures S4, S18, S23, S25 · Linked to 3 structured results
Fe-HHB-w is assigned to a hexagonal Fe-HHB 2D Kagome lattice with AA stacking and face-on orientation.
Caveat: Structure assignment is based on GIWAXS, TEM/SAED/FFT and DFT modelling; no CIF was supplied.
18192 · Results and Discussion · Figures 3, S10-S15 · Linked to 4 structured results
NH3-assisted CVD greatly improves Fe-HHB crystallinity, increasing domain area by about two orders of magnitude and conductivity from about 0.002 to about 3 S/cm.
Caveat: Domain-size values are approximate and partly microscopy-derived.
18191-18192 · Abstract; Results and Discussion · Figures 1-3, S9 · Linked to 4 structured results
OPTP/Drude-Smith analysis attributes the higher Fe-HHB-w dc mobility to improved crystallinity, reduced grain-boundary scattering and slightly longer scattering time.
Caveat: Mobility is estimated from a Drude-Smith model and assumed effective mass.
18194 · Results and Discussion · Figure 4e-f · Linked to 6 structured results
The face-to-face inner tube configuration is important for high-quality Fe-HHB-w films; alternative reversed, equal-length and quartz-boat configurations give lower conductivities.
SI p7-8 · Figure S2 discussion · Figure S2 · Linked to 4 structured results
The NH3-assisted strategy generalises to Cu-HHB and Cu-BHT, increasing conductivity from about 51 to 113 S/cm and from about 595 to 905 S/cm, respectively.
Caveat: Cu-BHT synthesis recipe is only vaguely described because it follows a previous work not supplied with this assignment.
18193 · Results and Discussion · Figures S23-S26 · Linked to 4 structured results
NH3 improves CVD growth through ligand deprotonation and by acting as a competing coordination species that promotes reversible formation and breakage of metal-ligand bonds.
Caveat: The mechanistic assignment combines spectroscopy, treatment experiments and chemical rationale rather than direct in situ observation.
SI p28 · Figure S22 discussion · Figure S22 · Linked to 3 structured results
Fe-HHB-w shows thermally activated Arrhenius transport, whereas Fe-HHB-o follows variable-range hopping, consistent with higher disorder in the no-NH3 control.
Caveat: Fe-HHB-o VRH is reported as a model assignment; no activation-energy value is given for Fe-HHB-o.
18193-18194 · Results and Discussion · Figure 4b-c · Linked to 2 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Cu-BHTBrowse family: Cu₃(C₆S₆) / Cu–BHT | Cu-BHT; CuS4-linked benzenehexathiol 2D conjugated coordination polymerCu centers from Cu(acac)2 or previous Cu-BHT CVD recipe · BHT = hexathiolbenzene / benzenehexathiol | 2D · Pristine2D c-CP thin film with CuS4 coordination linkages. | SI p31-32 · Figure S25-S26 discussion · Figures S25-S26 |
| Cu-HHBBrowse family: Cu₃(C₆O₆)₂ (Cu–THQ / Cu–HHB) | Cu-HHB; CuO4-linked hexahydroxybenzene 2D conjugated coordination polymerCu centers from Cu(acac)2 · HHB = hexahydroxybenzene | 2D · Pristine2D c-CP thin film; compared with Cu-THQ because of an almost identical structure. | SI p29-30 · Figure S23-S24 discussion · Figures S23-S24 |
| Fe-HHB | Fe-HHB; FeO4-linked hexahydroxybenzene 2D conjugated coordination polymerFe centers from Fe(acac)3 · HHB = hexahydroxybenzene | 2D · PristineHexagonal 2D Kagome lattice, face-on orientation, AA-stacking model; a = b = 7.57 Angstrom from DFT/GIWAXS assignment. | 18191-18192 · Results and Discussion · Figures 2-3 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Cu-BHT-o CVD thin film without NH3research_0582__mat__mat_cu_bht | Thin Film · Pristine Control · Pristine Framework | Cu-BHT sample grown without NH3.SiO2/Si | SI p32 · Figure S26 discussion · Figure S26 |
| Cu-BHT-w NH3-assisted CVD thin filmresearch_0582__mat__mat_cu_bht | Thin Film · Target Sample · Pristine Framework | As-grown Cu-BHT thin film prepared with NH3-assisted strategy.SiO2/Si; quartz; flexible polymer substrates reported as compatible | SI p31 · Figure S25 discussion · Figure S25 |
| Cu-HHB-o CVD thin film without NH3research_0582__mat__mat_cu_hhb | Thin Film · Pristine Control · Pristine Framework | As-grown Cu-HHB sample without assistance of NH3.SiO2/Si | SI p30 · Figure S24 discussion · Figure S24 |
| Cu-HHB-w NH3-assisted CVD thin filmresearch_0582__mat__mat_cu_hhb | Thin Film · Target Sample · Pristine Framework | Grown by NH3-assisted CVD using HHB and Cu(acac)2.SiO2/Si | SI p29 · Figure S23 discussion · Figure S23 |
| Fe-HHB NH3.H2O concentration seriesresearch_0582__mat__mat_fe_hhb | Thin Film · Target Sample · Pristine Framework | Fe-HHB films grown under varying NH3.H2O solution concentrations from 0 to 14 mol/L.SiO2/Si | SI p25 · Figure S19 caption · Figure S19 |
| DFT model of hexagonal Fe-HHBresearch_0582__mat__mat_fe_hhb | Model · Model System · Model | Spin-polarized DFT model based on AA stacking of hexagonal Fe-HHB. | 18192-18193 · Results and Discussion · Figure 3f |
| Fe-HHB-o CVD thin film without NH3research_0582__mat__mat_fe_hhb | Thin Film · Pristine Control · Pristine Framework | Control film grown in the absence of NH3.SiO2/Si or quartz; fused silica for OPTP · ~101 nm for OPTP sample; other thicknesses not consistently specified | 18191-18192 · Results and Discussion · Figures 1-3 |
| Fe-HHB-w NH3-assisted CVD thin filmresearch_0582__mat__mat_fe_hhb | Thin Film · Target Sample · Pristine Framework | Grown by NH3-assisted CVD using HHB and Fe(acac)3 in the face-to-face inner tube system.SiO2/Si or quartz; fused silica for OPTP · ~11.5 nm after 10 min; ~72.2 nm after 0.5 h; ~150.8 nm after 1 h; ~633.2 nm after 6 h | 18191 · Results and Discussion · Figure 2 |
| Fe-HHB-w-110/110 equal tube configurationresearch_0582__mat__mat_fe_hhb | Thin Film · Pristine Control · Pristine Framework | NH3-assisted CVD using two single-opening test tubes of equal length, about 110 mm each.substrate positioned at the gap between tube openings | SI p7-8 · Figure S2 discussion · Figure S2 |
| Fe-HHB-w-65/160 reversed tube configurationresearch_0582__mat__mat_fe_hhb | Thin Film · Pristine Control · Pristine Framework | NH3-assisted CVD with Fe(acac)3 in the longer 160 mm tube and HHB in the shorter 65 mm tube.substrate at CVD growth position | SI p7-8 · Figure S2 discussion · Figure S2 |
| Fe-HHB-w-AT high-concentration NH3 treated filmresearch_0582__mat__mat_fe_hhb | Thin Film · Pristine Control · Guest Loaded | Fresh Fe-HHB-w exposed to high-concentration NH3 atmosphere from 14 mol/L NH3.H2O at about 50 deg C.SiO2/Si | SI p27-28 · Figures S21-S22 · Figures S21-S22 |
| Fe-HHB-w-QB quartz-boat configurationresearch_0582__mat__mat_fe_hhb | Thin Film · Pristine Control · Pristine Framework | NH3-assisted growth without the face-to-face inner tube system; reactant powders placed in conventional quartz boats.substrate near conventional quartz boats | SI p8 · Figure S2 discussion · Figure S2 |