Liu W., Wang Y., Bai Z. et al. · ACS Applied Materials and Interfaces · 2017 · 16448-16457
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.
PXRD retention after aqueous pH, salt, lake-water and seawater treatments supports use of 1 under environmentally relevant sensing conditions.
Caveat: PXRD retention is qualitative; no long-term cycling or quantitative crystallinity retention is reported.
p004 / article p.16451 · Results and Discussion - Stability Test · Figures 2 and S3 · Linked to 2 structured results
The authors claim compound 1 has the lowest chromate detection limit among reported MOF-based chromium sensors at the time of publication.
Caveat: This is a literature comparison current to the 2017 paper and was not independently updated; later literature was not fetched.
p005 / article p.16452 · Results and Discussion - Detection Limit · Table S5 · Linked to 2 structured results
No electrical-transport, thermoelectric, or electrochemical conductivity measurements are reported for compound 1.
Caveat: Based on full-text search and reading of the main article, SI PDF text, and CIF supplied locally.
p001-p010 / article pp.16448-16457 · Full article
Compound 1 is a 3D cationic Eu(III)-mtb MOF with (4,8)-connected topology and disordered exchangeable nitrate anions in its channels.
Caveat: Eu2 positional disorder is significant and discussed in the SI; formula differs between main formula, SI table, and CIF due to refinement/disorder/solvation conventions.
p003 / article p.16450 · Results and Discussion - Structure and General Characterizations · Figure 1 · Linked to 3 structured results
Chromate sensing is attributed to selective chromate uptake and excitation-light/energy-transfer interactions that quench Eu(III) luminescence.
Caveat: Mechanism is supported by spectral overlap, adsorption kinetics/isotherms, and selectivity but not by direct time-resolved energy-transfer measurements in the extracted text.
p008 / article p.16455 · Conclusions · Linked to 5 structured results
Permanent microporosity and exchangeable nitrate anions are proposed to enable fast anion exchange and chromate uptake.
Caveat: The text links porosity and disordered nitrate to exchange qualitatively; detailed pore diffusion constants are not reported.
p003 / article p.16450 · Results and Discussion - Structure and General Characterizations · Figures S4 and S11 · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| MOF 1, [Eu7(mtb)5(H2O)16].NO3.8DMA.18H2O | [Eu7(mtb)5(H2O)16].NO3.8DMA.18H2O; crystallographic SI formula C116H84O41N1Eu3; CIF formula sum C58H44.52Eu2.80O22.26Eu(III) nodes; neighbouring Eu1 sites connected through Eu2 to form trinuclear [Eu3O25]+ cores · mtb4- derived from H4mtb, 4-[tris(4-carboxyphenyl)methyl]benzoic acid | 3D · PristineTriclinic P-1 3D microporous cationic framework, described as a (4,8)-connected 3D framework of [Eu7(mtb)5(H2O)16]+ with disordered charge-balancing nitrate anions in channels. | p002-p003 / article pp.16449-16450 · Introduction; Results and Discussion · Figure 1 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| LiCl/methanol-treated and outgassed bulk sample of 1research_0297__mat__mat_mof1_eu_mtb | Powder · Target Sample · Pristine Framework | Bulk sample immersed in methanolic LiCl, refreshed every 6 h for 3 days, washed with methanol, and outgassed at 80 C for 4 h. | p002 / article p.16449 · Experimental Section - N2 Adsorption Sample Preparation |
| as-synthesised light yellow block crystals of 1research_0297__mat__mat_mof1_eu_mtb | Single Crystal · Target Sample · Pristine Framework | Solvothermally synthesised, filtered, rinsed with DMA and ethanol, and collected as light yellow block crystals. | p002 / article p.16449 · Experimental Section - Synthesis |
| Cr-loaded compound 1research_0297__mat__mat_mof1_eu_mtb | Single Crystal · Target Sample · Guest Loaded | Compound 1 after chromate exposure; characterised by EDS analysis, SEM and Eu/Cr elemental mapping. | p006 / article p.16453 · Results and Discussion - Sensing Property · Figure 5 |
| finely ground powder of 1research_0297__mat__mat_mof1_eu_mtb | Powder · Target Sample · Pristine Framework | As-synthesised 1 finely ground before luminescence, adsorption, and sensing measurements. | p002 / article p.16449 · Experimental Section - Chromate Concentration-Dependent Luminescence Spectra |
| solution-treated samples of 1 for hydrolytic stabilityresearch_0297__mat__mat_mof1_eu_mtb | Powder · Target Sample · Pristine Framework | Solid 1 dispersed for 24 h in pH 2-14 aqueous media, metal-salt solutions, Dushu Lake water, or synthetic seawater before PXRD. | p002 / article p.16449 · Experimental Section - Hydrolytic Stability Measurements · Figures 2 and S3 |