Yao M.-S., Zheng J.-J., Wu A.-Q. et al. · Angewandte Chemie - International Edition · 2020 · 172-176
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 Cu3(HHTP)(THQ) nanowire thick-film chemiresistor detects low-concentration NH3 at room temperature with reported LOD values of 0.02-0.35 ppm.
Caveat: The lowest 0.02 ppm value is a calculated theoretical LOD from the log-log plot, not a direct experimental exposure concentration.
175 · Results and discussion · Figure 4b; Table S4 · Linked to 4 structured results
Combining trigonal HHTP and THQ ligands in Cu3(HHTP)(THQ) modulates both electronic conductivity and porosity relative to single-ligand EC-MOFs.
Caveat: Single-ligand comparator conductivity values in the article are literature/contextual values; no side-by-side fresh comparator synthesis is fully detailed for those phases.
175 · Summary · Linked to 3 structured results
Ethylenediamine balances the different Cu2+ coordination tendencies of HHTP and THQ by forming a soluble Cu(en)2 complex, enabling the dual-ligand phase.
Caveat: Mechanistic interpretation is supported by failed monoamine-base controls and impurity PXRD patterns, but not by isolated solution speciation measurements in the extracted text.
173 · Results and discussion · Figure 1b; Figures S1-S3
Cu3(HHTP)(THQ) is electronically conductive rather than ionically dominated under the reverse-polarity test.
Caveat: No separate Hall/carrier-type measurement is reported.
174 · Results and discussion · Figure 3d · Linked to 3 structured results
NH3 sensing selectivity is attributed to strong NH3-framework interaction involving Cu sites and lattice expansion after NH3 adsorption.
Caveat: The IR/PXRD evidence is qualitative in the article; no quantitative binding energy or adsorption isotherm for NH3 is reported.
175 · Results and discussion · Figure 4c,d; Figure S18 · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Cu3(HHTP)2Browse family: Cu₃(HHTP)₂ / Cu–HHTP | Cu3(C18O6H6)2Cu square-planar nodes · HHTP | 2D · PristineSingle-ligand hexagonal 2D pi-conjugated EC-MOF used as a literature comparator and possible impurity/control phase. | 173 · Results and discussion · Figure 1a; Figure S1 |
| Cu3(HHTP)(THQ)Browse family: Cu₃(HHTP)(THQ) / Cu–HHTP–THQ | Cu3(C18O6H6)(C6O6); EA-derived hydrated/counterion formula [Cu3(C18O6H6)(C6O6)(H2O)11.78(NH3CH2CH2NH3)1.59]Square-planar CuO4 units; each CuO4 centre assigned as negatively charged (-1) · HHTP = 2,3,6,7,10,11-hexahydrotriphenylene; THQ = tetrahydroxy-1,4-quinone | 2D · PristineDual-ligand 2D pi-conjugated electronically conductive MOF/porous coordination polymer with trigonal P3m1 unit cell and AB slightly slipped-parallel stacking. | 172 · Abstract |
| Cu3(HHTP)(THQ) DFT crystal modelBrowse family: Cu₃(HHTP)(THQ) / Cu–HHTP–THQ | Cu3(HHTP)(THQ) periodic modelCu2+ centres with Hubbard U correction in periodic DFT · HHTP and THQ | 2D · Model SystemPeriodic DFT model comparing AA stacking and AB slipped-parallel stacking of the dual-ligand framework. | 3-4 · Computational simulation · Figure S6 |
| Cu3(THQ)2Browse family: Cu₃(C₆O₆)₂ (Cu–THQ / Cu–HHB) | Cu3(C6O6)2Cu square-planar nodes · THQ | 2D · PristineSingle-ligand Cu-THQ conductive MOF/PCP comparator and impurity phase. | 173 · Results and discussion · Figure 1a; Figure S1 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Cu3(HHTP)2 pristine comparatorresearch_0793__mat__mat_cu_hhtp2_control | Unknown · Pristine Control · Pristine Framework | Literature comparator/control referenced for conductivity, activation energy and sensing comparison; not the main synthesised sample. | 172-174 · Introduction and results · Figure 1a |
| Cu3(HHTP)(THQ) periodic DFT modelresearch_0793__mat__mat_cu_hhtp_thq_model | Model · Model System · Model | Spin-polarised periodic DFT geometry-optimised model. | 3-4 · Computational simulation · Figure S6 |
| Cu3(HHTP)(THQ) nanowire black powderresearch_0793__mat__mat_cu_hhtp_thq | Powder · Target Sample · Guest Loaded | Crystalline black nanowire powder obtained after 65 deg C, 24 h solution-phase synthesis, washing, 60 deg C ageing and vacuum drying at 65 deg C overnight; contains protonated ethylenediamine and water guests/counterions by EA. | 1 · Fabrication of Cu3(HHTP)(THQ) nanowires |
| Cu3(HHTP)(THQ) powder pelletresearch_0793__mat__mat_cu_hhtp_thq | Pellet · Target Sample · Guest Loaded | Pressed powder pellet measured by two-probe source meter in Ar glove box and by DC reverse-polarity method. | 174 · Results and discussion · Figure 3b-d |
| Cu3(HHTP)(THQ) nanowire thick-film gas sensorresearch_0793__mat__mat_cu_hhtp_thq | Thin Film · Target Sample · Guest Loaded | Nanowires ultrasonically dispersed in ethanol, drop-coated on Au electrode glass substrate, activated under flowing dry air at room temperature.Glass substrate with pre-coated/predeposited Au interdigital electrodes · thick film; exact thickness not reported | 2-3 · Gas sensor characterizations · Figure 4; Figures S14-S17 |
| Cu3(THQ)2 pristine comparatorresearch_0793__mat__mat_cu_thq2_control | Unknown · Pristine Control · Pristine Framework | Literature comparator/control referenced for conductivity and activation-energy comparison. | 172-174 · Introduction and results · Figure 1a |