Aykanat A., Jones C.G., Cline E. et al. · ACS Applied Materials and Interfaces · 2021 · 60306-60318
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 reports the first demonstration of a bismuth-based coordination polymer for chemiresistive sensing.
Caveat: Claim is authors' best-knowledge statement.
60315 · Conclusions · Linked to 3 structured results
A single Bi(HHTP) conductive network differentiates VOCs by response direction: acetone/MeOH increase normalised conductance, EtOH/iPrOH decrease it.
Caveat: Concentration ranges differ among VOCs; slopes read from plotted figure axes.
60313 · Chemiresistive Sensing Response · Figure 6 · Linked to 4 structured results
Current sensing limitations include limited control over spatial orientation and film thickness on device surfaces.
Caveat: Forward-looking limitation from conclusions.
60315 · Conclusions
Bi(HHTP) has alpha and beta structures associated with dehydration/hydration of pores; water changes bismuth coordination and unit-cell parameters.
Caveat: Exact phase volume ratio varies with drying; beta prevalence inferred from elemental analysis.
60308-60310 · Synthesis and Characterization / Elemental Composition · Figure 4 · Linked to 3 structured results
EtOH exposure I-V curves remain Ohmic after saturation, arguing against Schottky barrier modulation for VOC sensing.
Caveat: Only explicitly demonstrated for EtOH exposure.
S38 · I-V Curves Plots with Exposure to Ethanol · Figure S39 · Linked to 1 structured result
Opposite responses to NO and NH3 are consistent with p-type semiconducting behaviour.
Caveat: Chemiresistive response also includes host-guest and hydrogen-bonding contributions.
60313 · Chemiresistive Sensing Response · Figure 5 · Linked to 2 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Bi(HHTP) bismuth coordination networkBrowse family: Bi(HHTP) / Bi–HHTP | [Bi(HHTP)]; alpha approx C36H14Bi2O12, beta approx C72H40Bi4O29 / (C36H12O12)Bi2-2(H2O)Bismuth ions / Bi(III)-based flexible coordination nodes · 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) | 3D · PristineCrystalline semiconductive coordination network with hydration-dependent Bi(HHTP)-alpha and Bi(HHTP)-beta forms solved by MicroED. | 60306 · Abstract |
| Bi(HHTP)-alphaBrowse family: Bi(HHTP) / Bi–HHTP | C36 H14 Bi2 O12 (CIF); main text also discusses (C36H12O12)Bi2Nonequivalent Bi1/Bi2; distorted quadrilateral and distorted tetragonal pyramidal coordination environments · HHTP catecholate/semiquinone ligands | 3D · PristineDehydrated alpha form; monoclinic P21/c, beta angle ca. 94.4 degrees; 2,3-C4 topology in standard representation. | CIF header |
| Bi(HHTP)-beta hydrateBrowse family: Bi(HHTP) / Bi–HHTP | C72 H40 Bi4 O29 (CIF); main text uses (C36H12O12)Bi2-2(H2O)Bi centres with five/six-coordinate environments; aqua ligand in beta structure · HHTP ligands with water/hydrogen-bonding in slit pores | 3D · PristineHydrated beta form; monoclinic P21/c, beta angle ca. 96.70 degrees; 3,4,4,5-c nodal net. | 60310 · Elemental Composition · Figure 4 |
| Bismuth(III) acetate | Bi(OAc)3Bi(III) acetate precursor · acetate | 0D · Model SystemMolecular precursor/control | 60308 · Synthesis and Characterization |
| 2,3,6,7,10,11-hexahydroxytriphenylene | C18H12O6none · HHTP molecular ligand precursor | 0D · Model SystemMolecular precursor/control | 60308 · Molecular Design |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Bi(HHTP)-alpha MicroED crystalresearch_0065__mat__mat_bi_hhtp_alpha | Single Crystal · Target Sample · Pristine Framework | Dry powder on TEM grid for MicroEDTEM grid · 0.050 x 0.010 x 0.005 mm crystal size in CIF | CIF cell/crystal data |
| Bi(HHTP)-beta hydrated MicroED crystalresearch_0065__mat__mat_bi_hhtp_beta | Single Crystal · Target Sample · Guest Loaded | Hydrated/water-containing structural modelTEM grid · 0.050 x 0.010 x 0.001 mm crystal size in CIF | CIF header |
| Bi(HHTP) chemiresistor on 10 um gap gold electrodesresearch_0065__mat__mat_bi_hhtp | Electrode · Target Sample · Pristine Framework | 1.5 mg/mL aqueous suspension sonicated 1 h, dropcast, dried 16-18 h in ambient atmosphereMetrohm G-IDEAU10 10 um gap interdigitated gold electrodes · not reported; 10 uL dropcast | S34 · Fabrication of sensing devices · Figure S33 |
| NH3-exposed Bi(HHTP)research_0065__mat__mat_bi_hhtp | Powder · Target Sample · Guest Loaded | Exposed to 10,000 ppm NH3 for 1 h for MicroED/pXRD/XPS/IR/EPR | S48-S50 · Mechanism studies · Figures S47-S52 |
| NO-exposed Bi(HHTP)research_0065__mat__mat_bi_hhtp | Powder · Target Sample · Guest Loaded | Exposed to 10,000 ppm NO for 1 h for MicroED/pXRD/XPS/IR/EPR | S48-S50 · Mechanism studies · Figures S47-S53 |
| Bi(HHTP) temperature-dependent I-V pelletresearch_0065__mat__mat_bi_hhtp | Pellet · Target Sample · Pristine Framework | Pressed pellet measured by two-point probe100 mg pressed pellet, 0.54 mm thickness in SI | S22 · Arrhenius Activation Energy · Figure S24 |
| Bi(HHTP) four-point-probe pressed pelletresearch_0065__mat__mat_bi_hhtp | Pellet · Target Sample · Pristine Framework | Pressed powder pellet0.100 g compressed into 6 mm pellet, 0.41 mm thickness in SI; main text says 0.2 mm | S21 · Conductivity measurements on pressed pellets · Equation S2 |
| Bi(HHTP) powder from Procedure 1, 2:1 metal:ligandresearch_0065__mat__mat_bi_hhtp | Powder · Target Sample · Pristine Framework | Hydrothermal aqueous product, water wash, EtOAc activation, vacuum dried | S5 · 1.3 Procedure 1 |
| Bi(HHTP) powder from Procedure 2, 1:1 metal:ligandresearch_0065__mat__mat_bi_hhtp | Powder · Target Sample · Pristine Framework | Hydrothermal aqueous product, water wash, EtOAc activation, vacuum dried | S6 · 1.4 Procedure 2 |
| Bi(HHTP) transparent thin film on quartz cuvetteresearch_0065__mat__mat_bi_hhtp | Thin Film · Target Sample · Pristine Framework | 10 mg in 2 mL, sonicated 5 min, drop castquartz cuvette · not reported | S27 · Optical absorbance Band Gap Calculation · Figure S28 |
| Bi(OAc)3 precursor controlresearch_0065__mat__mat_bi_oac3 | Powder · Pristine Control · Model | Molecular metal precursor | 60311 · Electronic Properties |
| HHTP precursor controlresearch_0065__mat__mat_hhtp | Powder · Pristine Control · Model | Molecular ligand precursor | 60311 · Electronic Properties |