Chen D., Xing H., Su Z. et al. · Chemical Communications · 2016 · 2019-2022
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.
The paper claims NNU-27 shows the best conductivity among reported three-dimensional MOFs at the time of publication, exceeding M2(TTFTB) by about five times.
Caveat: This is a literature-comparison claim made in 2015/2016 and should not be treated as current without a later literature check.
p003-p004 · Transport discussion · Linked to 1 structured result
Although PLATON/SOLV calculates 39.5% solvent-accessible volume, activated NNU-27 shows no gas adsorption because activation by solvent exchange destroys the pristine structure.
Caveat: Gas identity and detailed activation conditions are not reported in the extracted text.
p003 · Porosity discussion · Figure S4 · Linked to 3 structured results
As-synthesised bulk NNU-27 is assigned as a pure phase because its PXRD pattern matches the simulated pattern from single-crystal data.
Caveat: PXRD support is qualitative from the article; no extracted numerical peak list was reported.
p003 · Structure/characterisation · Figure S2 · Linked to 1 structured result
The electroluminescence of NNU-27 is attributed to electric-field-induced electromers enabled by the unique spatial arrangement of the anthracene-based ligand.
Caveat: The mechanism is proposed from EL/PL behaviour and structure; no direct electromer spectroscopy is extracted.
p004 · Electroluminescence · Figure 3 · Linked to 3 structured results
The authors attribute NNU-27 conductivity primarily to space-charge transport through a long-range pi-conjugated zigzag ligand pathway along the crystallographic c-axis.
Caveat: Mechanistic claim is inferred from structural arrangement and macroscopic I-V data; no direct mobility or microscopic charge-transport measurement is reported.
p004 · Transport discussion · Figure S6 · Linked to 2 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| NNU-27 | [ZnNa2(L)2(DEF)2].DEF; CIF formula sum C74 H54 N2 Na2 O10 ZnInfinite bimetal Na+/Zn2+ chain with Na+/Zn2+ molar ratio 2:1; Zn2+ tetrahedral carboxylate coordination and Na+ distorted octahedral carboxylate/DEF coordination. · L2- from H2L, 4,4'-(anthracene-9,10-diylbis(ethyne-2,1-diyl))-dibenzoic acid; anthracene-based dicarboxylate linker with long-range pi-stacked zigzag arrangement. | 3D · PristineTetragonal P42/nbc three-dimensional microporous framework; anthracene ligands stack in zigzag chains along the crystallographic c-axis and form double-wall carbon-nanotube-mimicking channels. | p002-p003 · Main text · Figure 1 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Activated NNU-27 after solvent exchangeresearch_0191__mat__mat_nnu27 | Powder · Target Sample · Unknown | Activated by solvent exchange for gas-uptake/porosity assessment. | p003 · Porosity discussion · Figure S4 cited |
| As-synthesised bulk NNU-27research_0191__mat__mat_nnu27 | Powder · Target Sample · Pristine Framework | Orange needle-like crystals / bulk NNU-27 as obtained from capped-vial DEF synthesis. | p003 · Main text · Figure S2 cited |
| ITO/NNU-27/ITO electroluminescent deviceresearch_0191__mat__mat_nnu27 | Electrode · Target Sample · Pristine Framework | Tens of similarly sized NNU-27 crystals placed between cleaned ITO substrates; devices connected with silver wires and protected by 1000 Ohm tandem resistance.ITO substrates, nominal sheet resistance ca. 100 Ohm · device thickness larger than 100 um caused by single crystal sample | p004 · Electroluminescence · Figure 3 |
| MB-loaded NNU-27research_0191__mat__mat_nnu27 | Powder · Target Sample · Guest Loaded | Methylene-blue-loaded NNU-27 used for dye uptake evidence of porosity. | p006 · Supporting figures · Figure S4 |
| NNU-27 single crystal for X-ray diffractionresearch_0191__mat__mat_nnu27 | Single Crystal · Target Sample · Pristine Framework | Needle-like red single crystal measured at room temperature.CIF crystal size 0.4 x 0.2 x 0.2 mm | text · CIF experimental crystal data |
| Single-crystal NNU-27 conductivity deviceresearch_0191__mat__mat_nnu27 | Single Crystal · Target Sample · Pristine Framework | Single crystal immobilised between two conducting silver-resin blocks for two-probe I-V measurement under ambient conditions.Conducting silver resin contacts on device support · effective contact/device dimensions ca. 600 x 140 x 140 um | p003 · Electrical conductivity · Figure 2a-b |