Primary studyCore evidenceTransport Physics

Multi-stimulus semiconductor Cu(i)-I-pyrimidine coordination polymer with thermo- and mechanochromic sensing

Lopez J., Murillo M., Lifante-Pedrola G. et al. · CrystEngComm · 2022 · 341-349

1materials
4samples
2synthesis routes
14measurements
84results
5claims and caveats

Evidence map

Open a family to keep every result attached to its sample, method and conditions.

Author interpretations and caveats

Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.

Application RelevanceSupport assessment: High

Hydrostatic pressure produces mechanochromic red-shifting and new emission bands without a phase transition, with near recovery after decompression.

Caveat: Relative HE/LE intensities after decompression do not fully return to the initial AP distribution.

main p.7 / article p.347 · Conclusions · Fig. 3; Fig. 4 · Linked to 5 structured results

Application RelevanceSupport assessment: High

CP1 is a reversible fluorescent thermochromic material, shifting from blue emission at room temperature to green-blue at 80 K.

Caveat: Application relevance is optical sensing rather than electrical transport.

main p.4 / article p.344 · Photophysical properties · Fig. 2 · Linked to 3 structured results

Structure Property LinkSupport assessment: High

Mechanical grinding reduces emission by decreasing grain size and increasing defects while preserving the CP1 crystal structure.

Caveat: No numeric particle-size distribution or defect density is reported.

main p.7 / article p.347 · Conclusions · Fig. 5; Fig. S5; Fig. S22 · Linked to 3 structured results

Structure Property LinkSupport assessment: High

Short Cu...Cu contacts below the copper van der Waals threshold are central to the optoelectronic and pressure-responsive luminescence behaviour.

Caveat: The pressure-dependent Cu...Cu series is mostly graphical; main text reports key distances and percentage changes.

main p.6 / article p.346 · Photophysical properties · Fig. 1b; Fig. 3; Fig. S13 · Linked to 5 structured results

Transport MechanismSupport assessment: Medium

CP1 shows possible semiconductor behaviour at 295 K, with single-crystal and pellet conductivities on the order of 10^-7 S cm^-1.

Caveat: Conductivity values are read from SI figure labels, not a text/table; no temperature-dependent transport or activation-energy analysis is reported.

main p.1 / article p.341 · Abstract · Fig. S20; Fig. S21 · Linked to 3 structured results

Material identities

Names and aliases are kept exactly within the paper’s own identity model.

MaterialCompositionStructure contextSource
1D-[Cu(aClpym)I]n (CP1)[Cu(C4H4ClN3)I]n; empirical formula C4H4ClCuIN3Cu(I)-iodide double chain; each Cu(I) is coordinated to three iodide atoms and one pyrimidine N donor. · 2-amino-4-chloropyrimidine (aClpym)1D · PristineMonoclinic P21/n; double-stranded staircase Cu(I)-I chain growing parallel to the a-axis.main p.3 / article p.343 · Results and discussion · Fig. 1; Table S1

Sample register

Sample form, processing state and composition status define the context for measurements.

Show 4 sample records
SampleForm and roleProcessing and geometrySource
CP1 precipitated bulk solid / polycrystalline powderresearch_0358__mat__cp1_cu_aclpym_iPowder · Target Sample · Pristine FrameworkWhite precipitate filtered, washed with acetonitrile and ethanol, and dried under vacuum.main p.3 / article p.343 · Synthetic procedure
CP1 ground powder seriesresearch_0358__mat__cp1_cu_aclpym_iPowder · Target Sample · Pristine FrameworkPowder ground for 0, 5, 10 and 15 min for mechanoluminescence tests; 15 min ground sample imaged by FESEM.main p.7 / article p.347 · Results and discussion · Fig. 5; Fig. S5; Fig. S22
CP1 pressed pelletresearch_0358__mat__cp1_cu_aclpym_iPellet · Target Sample · Pristine FrameworkPressed at 6.0 GPa for 2 min before electrical conductivity measurement.main p.3 / article p.343 · Electrical conductivity measurements · Fig. S20
CP1 colourless needle-shaped single crystalsresearch_0358__mat__cp1_cu_aclpym_iSingle Crystal · Target Sample · Pristine FrameworkCrystals obtained from mother solution after 48 h evaporation at room temperature.main p.3 / article p.343 · Synthetic procedure