Naaz S., Das P., Khan S. et al. · Polyhedron · 2021 · 115159
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 authors conclude that compound 1 may be applied in photosensitive electronic devices.
Caveat: The available main text does not report a direct illumination-dependent measurement; the claim rests on rectification and stated photosensitivity.
p005 · 4 Conclusion · Linked to 2 structured results
The Al/compound 1/ITO device shows rectifying behaviour consistent with Schottky barrier formation.
Caveat: Device concentration and spin-coating conditions are incompletely reported; junction inhomogeneity is noted by the authors.
p005 · 3.4 Electrical analysis · Fig. 5; Table 1 · Linked to 5 structured results
The paper suggests photosensitive electronic-device relevance, but the supplied article/SI do not report an illumination-dependent photocurrent or photoresponse measurement.
Caveat: This is a database caveat based on absence of a reported light-response result in the read documents.
p005 · 4 Conclusion · Linked to 2 structured results
Compound 1 is a monoclinic P21/c Co(II) one-dimensional coordination polymer in which fumarate bridges Co centres to form chains.
Caveat: The empirical/CIF formula differs from the bracketed formula printed in parts of the article.
p002 · 3.1 Description of structure · Fig. 1 · Linked to 4 structured results
Hydrogen bonding and pi-pi stacking interactions are proposed to facilitate charge transport in compound 1.
Caveat: The paper provides correlative structural evidence rather than a mechanistic transport proof.
p005 · 3.4 Electrical analysis · Linked to 5 structured results
The frequency-dependent decrease in dielectric constant is attributed to dipole relaxation, while larger low-frequency dielectric loss is attributed to space-charge polarisation/Shockley-Read mechanism.
Caveat: Quantitative dielectric values were read visually from the figure, and the mechanistic assignment is qualitative.
p003-p004 · 3.3 Dielectric properties · Fig. 4a-b · Linked to 3 structured results
AC conductivity is described with Jonscher's law; n = 0.64 is interpreted as sudden hopping with translational motion rather than localised hopping.
Caveat: The fit itself is only shown graphically in the inset; the paper reports n but not uncertainty or fitting range.
p005 · 3.3 Dielectric properties · Fig. 4c · Linked to 3 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Compound 1: halopyridine appended Co(II) coordination polymer | Main text reports [Co(3-clpy)2(fum)2(H2O)2]n; elemental analysis and CIF give C14 H14 Cl2 Co N2 O6 (formula weight 436.10), consistent with one fumarate per Co formula unit.Co(II) centres in distorted octahedral CoO4N2 coordination environments · 3-clpy = 3-chloropyridine axial ligand; fum = fumarate bridging ligand; coordinated aqua ligands | 1D · PristineMonoclinic P21/c coordination polymer. Co(II) centres and fumarate ligands form 1D chains; hydrogen bonding links chains into 2D sheets; pi-pi stacking gives a 3D supramolecular aggregate. | p001 · Abstract |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| As-synthesised bulk compound 1research_0378__mat__mat_compound_1 | Powder · Target Sample · Pristine Framework | As-synthesised pristine coordination polymer used for elemental analysis, FT-IR, PXRD, TGA and Hirshfeld/structure discussion. | p002 · 2.1 Physical measurements · Figs. S2-S3 |
| Blocked shaped pink crystals of compound 1research_0378__mat__mat_compound_1 | Single Crystal · Target Sample · Pristine Framework | Layered solution crystallisation product obtained after a few days; used for single-crystal X-ray structure determination. | p002 · 2.2.1 Preparation |
| Al/compound 1/ITO thin-film MS junctionresearch_0378__mat__mat_compound_1 | Thin Film · Target Sample · Pristine Framework | Compound 1 dissolved in acetonitrile, ultrasonicated for 45 min, spin-coated on pre-cleaned ITO, dried in vacuum, then coated with aluminium under 10^-6 Torr through a shadow mask.ITO coated glass with vacuum-deposited Al top contact · ~1 um film thickness; effective diode area 7.065 x 10^-6 m2 | p002 · 2.6 Electrical measurements |