Wu X., Qiu Y., Chen Z. et al. · Angewandte Chemie - International Edition · 2020 · 20873-20878
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-THBQ shows an air-stable negative Seebeck coefficient and is presented as a potential n-type thermoelectric material.
Caveat: Only the Seebeck coefficient and conductivity are reported; no power factor or ZT is reported.
4 · Thermoelectric properties · Figure S4 · Linked to 3 structured results
Strong visible-to-near-IR absorption and narrow optical band gaps suggest M-THBQ materials may be useful as photoabsorbers or light-harvesting materials.
Caveat: No device-level photoabsorber performance is reported.
3-5 · UV/Vis-NIR discussion and Summary · Figure 4 · Linked to 4 structured results
The low BET surface areas are attributed to water molecules partly occupying the pores.
Caveat: This is the authors' caption-level explanation; no activation or water-removal control is reported.
6 · Figure S7 caption · Figure S7 · Linked to 3 structured results
Fe-THBQ, Co-THBQ and Mn-THBQ are well-crystallised 3D semiconducting MOFs with cubic Pm-3 structures.
Caveat: Mn-THBQ refinement statistics are not provided in Table S1.
1,4 · Abstract; Electrical properties · Figures 1 and 5 · Linked to 6 structured results
Negative Weiss constants for all three M-THBQ materials indicate antiferromagnetic coupling between neighbouring metal ions, strongest for Fe-THBQ.
5 · Magnetic properties · Figure 5d · Linked to 3 structured results
The authors attribute the higher conductivity of Fe-THBQ to mixed-valent FeII/FeIII, mid-gap states, and inter-iron electron hopping, with close C6 ring stacking also contributing through-space transport.
Caveat: Mechanistic assignment is interpretive and based on spectroscopy plus comparison among metal analogues rather than a direct mobility measurement.
4 · Electrical properties mechanism discussion · Figure 5 · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Co-THBQ (2Co) | Co12(C6O6)6(H2O)8; SI formula Co12C36O44H16CoII nodes and disordered CoII pore counterions · tetrahydroxy-1,4-benzoquinone / tetrahydroxybenzoquinone (THBQ, C6O6) | 3D · PristineCubic 3D scaffold, space group Pm-3, solved from synchrotron PXRD and supported by 3D electron diffraction. | 2 · Structure discussion · Figures 1 and 2 |
| Fe-THBQ (1Fe) | Fe12(C6O6)6(H2O)6; SI formula Fe12C36O42H12Fe nodes; mixed-valent FeII/FeIII in Fe-THBQ · tetrahydroxy-1,4-benzoquinone / tetrahydroxybenzoquinone (THBQ, C6O6) | 3D · PristineCubic 3D scaffold, space group Pm-3, solved from synchrotron PXRD. | 1 · Abstract and Introduction |
| Mn-THBQ (3Mn) | Mn12(C6O6)6(H2O)8; SI formula Mn12C36O44H16MnII nodes · tetrahydroxy-1,4-benzoquinone / tetrahydroxybenzoquinone (THBQ, C6O6) | 3D · PristineCubic 3D scaffold, space group Pm-3, indexed by synchrotron PXRD. | 2 · Structure discussion · Figure 1 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Co-THBQ pressed cuboid pelletresearch_0198__mat__mat_co_thbq | Pellet · Target Sample · Pristine Framework | About 20 mg powder compressed into a cuboid pellet at 10 MPa; connected with four probes by conductive adhesive. | 3 · Electrical conductivity measurements |
| Co-THBQ well-crystallised powderresearch_0198__mat__mat_co_thbq | Powder · Target Sample · Pristine Framework | Solvothermally synthesised powder, filtered, washed with water and ethanol and dried at 45 deg C under vacuum. | 2 · Experimental Section - Synthesis of Co-THBQ |
| Fe-THBQ pressed cuboid pelletresearch_0198__mat__mat_fe_thbq | Pellet · Target Sample · Pristine Framework | About 20 mg powder compressed into a cuboid pellet at 10 MPa; connected with four probes by conductive adhesive. | 3 · Electrical conductivity measurements |
| Fe-THBQ black powderresearch_0198__mat__mat_fe_thbq | Powder · Target Sample · Pristine Framework | As-synthesised black powder, washed with water and ethanol and dried at 45 deg C under vacuum. | 2 · Experimental Section - Synthesis of Fe-THBQ |
| Mn-THBQ pressed cuboid pelletresearch_0198__mat__mat_mn_thbq | Pellet · Target Sample · Pristine Framework | About 20 mg powder compressed into a cuboid pellet at 10 MPa; connected with four probes by conductive adhesive. | 3 · Electrical conductivity measurements |
| Mn-THBQ powderresearch_0198__mat__mat_mn_thbq | Powder · Target Sample · Pristine Framework | Prepared by the same method as Co-THBQ and dried for subsequent measurements. | 2 · Experimental Section - Synthesis of Mn-THBQ |