Wang Y., Miao X., Sun L. · CrystEngComm · 2025 · 5848-5854
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.
Although Zn-3 reduced the cross-sectional width to the micrometre scale, it did not produce working micro/nano-fabricated devices because crystals cracked and contacts were poor.
Caveat: Failure is reported qualitatively; no device yield statistics are provided.
3 · Attempts to grow thin crystals for micro/nano fabrication · Fig. S5 · Linked to 2 structured results
H4TTFTB pre-assembly under high ligand concentration slows nucleation and facilitates growth of large Zn2(TTFTB) crystals.
Caveat: The authors call this a hypothesis verified by a sequential-addition trial; direct time-resolved evidence is not reported.
4 · Results and discussions · Fig. S13 · Linked to 3 structured results
Increasing H4TTFTB concentration, rather than tuning water content, solvent, pH, Zn2+ concentration or heating/cooling schedules, produced Zn-9 crystals long enough for manual single-crystal device fabrication.
Caveat: Mechanism is inferred from crystallisation observations and ligand-crystal co-formation, not in situ kinetics.
5 · Conclusions · Linked to 3 structured results
The Zn-9 single-crystal device reports a DC conductivity about an order of magnitude higher than the pressed pellet, supporting the importance of single-crystal measurements for intrinsic transport.
Caveat: Single-crystal and pellet geometries differ; pellet value is a comparison control rather than a direct anisotropic measurement.
5 · Single-crystal electrical conductivity measurements · Fig. 6; Fig. S14 · Linked to 2 structured results
Comparable S...S distances and similar H4TTFTB/Zn2(TTFTB) single-crystal conductivities support charge transport through pi-stacked TTF columns along the crystal long axis.
Caveat: The paper notes that the detailed electrical conduction mechanism remains worth further investigation.
5 · Single-crystal electrical conductivity measurements · Fig. S15 · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| H4TTFTB ligand crystal | H4TTFTBnone · tetrathiafulvalene tetrabenzoic acid molecules | 0D · UnknownMolecular crystal phase consisting of 1D H4TTFTB columns assembled through S...S interactions and hydrogen bonding. | 4 · Results and discussions · Fig. 5e,f |
| Zn2(TTFTB)Browse family: Zn₂(TTFTB) | Zn2(TTFTB); TTFTB4- = tetrathiafulvalene tetrabenzoateZn2+ coordination nodes; newly solved Zn-9 structure has Zn-O coordination spheres differing from the previously reported structure · TTFTB4- tetrathiafulvalene tetrabenzoate linker from H4TTFTB | 3D · PristineElectrically conductive MOF with redox-active TTF moieties forming pi-stacked 1D columns along the crystallographic c axis; SC-XRD of Zn-9 gives a microporous hexagonal structure. | 1 · Abstract |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| H4TTFTB single crystalsresearch_0252__mat__h4ttftb_ligand_crystal | Single Crystal · Paper Level Unspecified · Unknown | H4TTFTB molecular crystals co-formed in high-ligand synthesis or crystallised before Zn2+ additionnone · not reported | 4 · Results and discussions · Fig. 5e,f; Fig. S15 |
| Zn-10 sequential ligand/Zn2+ addition crystalsresearch_0252__mat__zn2_ttftb | Single Crystal · Target Sample · Pristine Framework | H4TTFTB crystallised first, then Zn2+ added and mixture heatednone · length distribution reported; average length 334 um in main text | 4 · Results and discussions · Figure S13 |
| Zn-1 reproduced literature Zn2(TTFTB) crystalsresearch_0252__mat__zn2_ttftb | Single Crystal · Pristine Control · Pristine Framework | dark red hexagonal-rod-like crystals from the reproduced literature procedurenone · average width 10.22 +/- 2.94 um | 2 · Results and discussions · Fig. 1a,d; Table S1 |
| Zn-1 to Zn-8 PXRD powder seriesresearch_0252__mat__zn2_ttftb | Powder · Paper Level Unspecified · Pristine Framework | thin layers of crystals used for PXRD patternszero-background silicon crystal plate · not applicable | 7 · Powder X-ray diffraction · Figure S1 |
| Zn-2 water-content trial crystalsresearch_0252__mat__zn2_ttftb | Single Crystal · Target Sample · Pristine Framework | Zn2(TTFTB) crystals grown after adding another 1 mL waternone · average width 4.82 +/- 1.57 um | 3 · Attempts to grow thin crystals for micro/nano fabrication · Fig. 1b,e; Table S1 |
| Zn-3 micro/nano-fabricated single-crystal device attemptresearch_0252__mat__zn2_ttftb | Electrode · Target Sample · Pristine Framework | Zn-3 crystals suspended in ethanol, spin coated, then contacted by electron-beam lithography and sputtered Ti/Au electrodes0.5 cm x 0.5 cm silicon wafer with Ti/Au markers and Ti/Au electrodes · single-crystal cross-section about 2.25 +/- 0.88 um before device fabrication | 6 · Micro/nano fabrication of single-crystal electronic devices · Figure S5 |
| Zn-3 fast heating/cooling-rate crystalsresearch_0252__mat__zn2_ttftb | Single Crystal · Target Sample · Pristine Framework | Zn2(TTFTB) crystals grown from the Zn-2 mixture with hotplate heating and natural coolingnone · average width 2.25 +/- 0.88 um | 3 · Attempts to grow thin crystals for micro/nano fabrication · Fig. 1c,f; Fig. S5; Table S1 |
| Zn-4 short reaction-time crystalsresearch_0252__mat__zn2_ttftb | Single Crystal · Target Sample · Pristine Framework | Zn2(TTFTB) trial with reaction time reduced to 24 hnone · average width 7.04 +/- 2.28 um | 3 · Attempts to grow thin crystals for micro/nano fabrication · Fig. 3a,d; Table S1 |
| Zn-5 high-temperature crystalsresearch_0252__mat__zn2_ttftb | Single Crystal · Target Sample · Pristine Framework | Zn2(TTFTB) trial with reaction temperature changed to 85 deg Cnone · average width 22.01 +/- 2.93 um | 3 · Attempts to grow thin crystals for micro/nano fabrication · Fig. 3b,e; Table S1 |
| Zn-6 organic-solvent trial crystalsresearch_0252__mat__zn2_ttftb | Single Crystal · Target Sample · Pristine Framework | Zn2(TTFTB) trial with methanol and acetonitrile addednone · average width 5.17 +/- 1.59 um | 3 · Attempts to grow thin crystals for micro/nano fabrication · Fig. 3c,f; Table S1 |
| Zn-7 pH/acetic-acid trial crystalsresearch_0252__mat__zn2_ttftb | Single Crystal · Target Sample · Pristine Framework | Zn2(TTFTB) trial with 100 uL acetic acid addednone · average width 37.54 +/- 9.00 um | 3 · Attempts to grow thin crystals for micro/nano fabrication · Fig. S7; Table S1 |
| Zn-8 high-Zn2+ concentration crystalsresearch_0252__mat__zn2_ttftb | Single Crystal · Target Sample · Pristine Framework | Zn2(TTFTB) crystals generated by increasing Zn2+ amount about tenfoldnone · average width 3.84 +/- 1.06 um | 3 · Attempts to grow long crystals for manual fabrication · Fig. S8; Table S1 |
| Zn-9 large Zn2(TTFTB) crystalsresearch_0252__mat__zn2_ttftb | Single Crystal · Target Sample · Pristine Framework | washed Zn2(TTFTB) crystals from high-H4TTFTB concentration synthesis, dried at 40 deg C under vacuumnone · average width 143.37 +/- 35.97 um | 4 · Attempts to grow long crystals for manual fabrication · Fig. 5; Table S1 |
| pressed pellet of Zn-9research_0252__mat__zn2_ttftb | Pellet · Pristine Control · Pristine Framework | Zn-9 powder pressed in a home-built clamp/tube instrument between stainless-steel rodsnone · pellet thickness 0.31 cm; diameter 0.3 cm | 6 · Measurements on pressed pellets of Zn-9 · Figure S14 |
| Zn-9 two-contact single-crystal electronic deviceresearch_0252__mat__zn2_ttftb | Electrode · Target Sample · Pristine Framework | gold wires manually attached to both ends of a Zn-9 rod-like single crystal; current along crystallographic c axisglass slide pre-patterned with Ti/Au electrodes; Au wires and carbon paste contacts · device channel dimensions measured optically; exact individual dimensions not tabulated | 4 · Single-crystal electrical conductivity measurements · Fig. 6a |