Himoto K., Horii T., Syoji T. et al. · Inorganic Chemistry Communications · 2018 · 34-37
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.
Copper is assigned as monovalent Cu(I), supported by BVS and XPS.
Caveat: Reference labels in the OCR include superscript errors, but the BVS and XPS interpretation are explicit.
main p.1 / article p.34 · Structure discussion · Fig. S1 · Linked to 3 structured results
Compound 1 is assigned as a one-dimensional Cu(I)-iodide ladder-chain coordination polymer with pendant 3-Py-CHO ligands.
Caveat: Several extracted captions display CuII due to superscript/OCR confusion; the article text, BVS, XPS, CIF formula, and title support Cu(I).
main p.1 / article p.34 · Structure discussion · Fig. 1 · Linked to 3 structured results
The 3-Py-CHO ligands are parallel along the Cu-I ladder, but the 3.476 A plane separation was interpreted as no pi-pi stacking.
Caveat: The paper does not provide a quantitative electronic-structure analysis linking this feature to the measured conductivity.
main p.1 / article p.34 · Structure discussion · Fig. S2 · Linked to 1 structured result
Diffuse-reflectance spectroscopy gives an optical HOMO-LUMO gap of 2.30 eV and an intense around-300 nm band assigned to MLCT.
Caveat: Optical measurement used an MgO-diluted pellet rather than a neat pellet.
main p.2 / article p.35 · Diffuse-reflectance discussion · Fig. 2 · Linked to 2 structured results
The impedance response is dominated by a conductivity relaxation process, with M double-prime maxima shifting to higher frequency as temperature increases.
Caveat: Equivalent-circuit parameters are reported, but the assignment remains phenomenological.
main p.2-p.3 / article pp.35-36 · Impedance and modulus discussion · Figs. 4 and 5 · Linked to 3 structured results
The pristine coordination polymer exhibits semiconducting behaviour without additional chemical doping.
Caveat: Conductivity is low and measured on different sample forms; single-crystal measurement temperature is not explicitly stated.
main p.2-p.3 / article pp.35-36 · Conductivity discussion and summary · Figs. 3-5 · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Copper(I)-iodide 3-pyridinecarboxaldehyde coordination polymer 1 | [CuI(3-Py-CHO)]n; empirical repeat formula C6H5CuINOInfinite Cu(I)-iodide ladder chain; each Cu(I) is tetrahedrally coordinated by three iodide ions and one pyridyl N donor. · 3-pyridinecarboxaldehyde (3-Py-CHO), coordinated as pendant pyridyl-N ligand. | 1D · PristineOne-dimensional infinite Cu-I ladder chain with 3-Py-CHO ligands on both sides; no pi-pi stacking between 3-Py-CHO planes was reported. | main p.1 / article p.34 · Abstract and structure discussion · Fig. 1 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| KBr pellet containing 1 for IR spectroscopyresearch_0456__mat__cu_i_3pycho_1d_cp | Pellet · Composite Sample · Composite | Pristine powder dispersed in a KBr pellet for FT-IR. | 1.4. Physical Measurements · Figure S4 |
| Pelletised 1/MgO mixture for diffuse-reflectance spectroscopyresearch_0456__mat__cu_i_3pycho_1d_cp | Pellet · Composite Sample · Composite | Pelletised mixture containing 1 and MgO powder. | main p.2 / article p.35 · Diffuse-reflectance discussion · Fig. 2 |
| Powdered sample of [CuI(3-Py-CHO)]nresearch_0456__mat__cu_i_3pycho_1d_cp | Powder · Target Sample · Pristine Framework | Powder obtained from pristine crystalline product. | 1.4. Physical Measurements · Figures S1, S3, S5 |
| Pressed powder pellet of 1 for impedance measurementsresearch_0456__mat__cu_i_3pycho_1d_cp | Pellet · Target Sample · Pristine Framework | Powder pressed into a pellet and sandwiched between brass electrodes.0.332 mm | main p.2 / article p.35 · Impedance measurements · Fig. 4 |
| Yellow needle-shaped single crystals of 1research_0456__mat__cu_i_3pycho_1d_cp | Single Crystal · Target Sample · Pristine Framework | Crystals obtained after filtration and standing at room temperature for several hours. | 1.2. Synthesis |