Vegas V.G., Maldonado N., Castillo O. et al. · Journal of Inorganic Biochemistry · 2019 · 110805
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.
CP1 can be downsized from millimetre crystals to micrometre/nanometre flakes by ultrasound without changing the framework structure detected by IR/PXRD.
Caveat: Only CP1 is nanoprocessed; no electrical conductivity is reported for the nano/micro samples.
7 · 3.2.2. Nanoprocessing · Fig. 6 · Linked to 5 structured results
The first CP1 thermal mass-loss stage near 135 deg C is assigned to loss of interstitial/crystallisation water.
Caveat: Only CP1 thermal behaviour is detailed in the supplied SI text.
6 · Figure S2 commentary · Figure S2 · Linked to 3 structured results
The authors attribute CP2's much lower conductivity than CP1 to larger water-containing voids, easier water loss, and loss of crystallinity.
Caveat: The void percentage for CP2 is inconsistent between text (13.2%) and figure label (12.3%); the causal link is interpretive rather than directly measured.
5 · 3.2.1. Electrical properties · Fig. 3 · Linked to 3 structured results
Complementary nucleobase hydrogen bonds help hold the coordination-polymer sheets or chains together into the final supramolecular crystal architecture.
Caveat: The electronic-transport consequence of these contacts is not separately measured.
4 · 3.1. Structural studies · Figs. 3-4; Tables S3-S5 · Linked to 3 structured results
pH, solvent and stoichiometry govern product formation: acidic water conditions promote in situ oxalate formation in CP1/CP2, while ethanol conditions reduce Cu(II) to Cu(I) in CP3.
Caveat: Mechanistic interpretation is based on product structures and literature precedent, not direct mechanistic monitoring.
3 · 3. Results and discussion · Fig. 1 · Linked to 3 structured results
Iodine vapour exposure increases CP1 conductivity through oxidative p-type doping/charge transfer.
Caveat: The iodine uptake/loading and dopant distribution are not quantified; the numeric tabulated enhancement is 20-fold from 0 to 810 min although the authors describe it as two orders of magnitude.
5 · 3.2.1. Electrical properties · Table 1 · Linked to 3 structured results
CP1, CP2 and CP3 show semiconducting electrical behaviour in crystalline form at 300 K.
Caveat: Conductivity was measured by a two-contact method on single crystals; device dimensions and contact resistance corrections are not reported.
4 · 3.2.1. Electrical properties · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| CP1, [Cu2(TAcO)2(C2O4)(4,4'-bpy)].4H2O | [Cu2(TAcO)2(C2O4)(4,4'-bpy)].4H2O in main abstract; SI/checkCIF empirical formula C26H28Cu2N6O15 and CIF moiety trihydrate indicate disordered crystallisation water.Cu(II) centres; oxalate-bridged Cu(II) dimers connected through carboxylate and 4,4'-bipyridine bridges · thymine-1-acetate (TAcO), oxalate, 4,4'-bipyridine | 2D · PristineCorrugated 2D coordination polymer/layer with ladder-like columns; triclinic P -1 single-crystal structure. | 1 · Abstract |
| CP2, [Cu2(UAcO)2(C2O4)(4,4'-bpy)].2H2O | [Cu2(UAcO)2(C2O4)(4,4'-bpy)].2H2O; checkCIF reports C24 H22 Cu2 N6 O14Cu(II) centres connected by oxalate, uracil-1-acetate carboxylate, and 4,4'-bipyridine bridges · uracil-1-acetate (UAcO), oxalate, 4,4'-bipyridine | 2D · PristineCorrugated 2D coordination polymer/layer analogous to CP1; triclinic P -1 single-crystal structure. | 1 · Abstract |
| CP3, [Cu2(TAcO)2(4,4'-bpy)] | [Cu2(TAcO)2(4,4'-bpy)]; checkCIF reports C24 H22 Cu2 N6 O8Cu(I) centres bridged by double monodentate thymine-1-acetate and 4,4'-bipyridine · thymine-1-acetate (TAcO), 4,4'-bipyridine | 1D · PristineLinear 1D coordination polymer with distorted triangular Cu(I) coordination; triclinic P -1 single-crystal structure. | 3 · 2.4. Synthesis of [Cu2(TAcO)2(4,4'-bpy)] (CP3) |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| CP1 previously dehydrated to 140 deg Cresearch_0765__mat__cp1 | Powder · Target Sample · Pristine Framework | CP1 powder thermally dehydrated to 140 deg C before TGA/MS comparison. | 6 · Figure S2 caption/commentary · Figure S2 |
| CP1 exposed to iodine vapourresearch_0765__mat__cp1 | Single Crystal · Target Sample · Doped | CP1 exposed to iodine vapour at ambient temperature and pressure for 0-24 h.graphite paste contacts with wolframium wires for conductivity | 3 · Materials and methods |
| microCP1 after ultrasound sonicationresearch_0765__mat__cp1 | Nanosheet · Target Sample · Pristine Framework | CP1 crystals sonicated in acetone for 1 h before centrifugation; aliquot deposited on SiO2.SiO2 surface for SEM | 3 · 2.2. Nanoprocessing of CP1 via top-down approach |
| nanoCP1 supernatant flakesresearch_0765__mat__cp1 | Nanosheet · Target Sample · Pristine Framework | Supernatant after 1 h sonication in acetone and centrifugation at 3000 rpm for 2 min.SiO2 surface for SEM | 7 · 3.2.2. Nanoprocessing · Fig. 6 |
| CP1 polycrystalline/powder sampleresearch_0765__mat__cp1 | Powder · Target Sample · Pristine Framework | As-synthesised CP1 microcrystalline solid or polycrystalline powder, depending on measurement. | 2 · Materials and methods |
| CP1 turquoise needle-shaped single crystalsresearch_0765__mat__cp1 | Single Crystal · Target Sample · Pristine Framework | Manually separated turquoise crystals from solvothermal product; used as pristine crystalline CP1. | 3 · 2.1. Synthesis of CP1 |
| CP2 light-blue single crystalsresearch_0765__mat__cp2 | Single Crystal · Target Sample · Pristine Framework | Light-blue crystals dried under vacuum after solvothermal synthesis. | 3 · 2.3. Synthesis of CP2 |
| CP3 yellow single crystalsresearch_0765__mat__cp3 | Single Crystal · Target Sample · Pristine Framework | Yellow crystals filtered and dried in vacuum after ethanol solvothermal synthesis. | 3 · 2.4. Synthesis of CP3 |