Mishra S., Pandey D., Mishra K. et al. · New Journal of Chemistry · 2023 · 19751-19759
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 has the highest conductivity because its continuous Cu2I2 stair motif provides better charge-carrier transport than CP3, while CP2 has the lowest conductivity.
Caveat: The authors explicitly note the structures are different and cannot be directly compared; mechanism is structure-based interpretation rather than a separate carrier-transport model.
7 · Electrical conductivity · Linked to 6 structured results
CP3 is the most thermally stable among the reported CPs due to its 2D structure.
Caveat: Only TGA degradation onset and mass-loss traces are reported; no kinetic analysis.
5 · Thermogravimetric analysis · Fig. S15-S17 · Linked to 4 structured results
Changing the triazole-substituted pyridine ligand isomer changes the coordination polymer dimensionality and consequently the photophysical and electrical properties.
Caveat: The comparison is among three related but structurally distinct pristine frameworks.
7 · Conclusion · Linked to 6 structured results
All three pristine Cu(I)-iodide coordination polymers behave as semiconductors at room temperature based on pressed-pellet conductivities in the 10^-7 to 10^-8 S cm^-1 range.
Caveat: Two-probe pressed-pellet measurements can include contact and pellet-density effects; no uncertainty or thickness/contact geometry is reported.
6 · Electrical conductivity · 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(mu3-I)2(L1)2]n | [Cu2(mu3-I)2(L1)2]n; empirical repeat C7H6CuIN4Cu(I)-iodide double-stranded Cu2I2 secondary building units with mu3-iodide bridges · L1 = 2-(1H-1,2,4-triazol-1-yl)pyridine | 1D · PristineMonoclinic P21/c polymeric double-chain/staircase structure; triazolyl nitrogen coordinates to Cu while pyridine nitrogen remains pendant. | 1 · Abstract |
| CP2, [Cu2(mu2-I)2(L2)2]n | [Cu2(mu2-I)2(L2)2]n; empirical repeat C7H6CuIN4Discrete Cu2I2 rhomboid secondary building units · L2 = 3-(1H-1,2,4-triazol-1-yl)pyridine | 1D · PristineTriclinic P-1 1D chain with an 18-membered metallacycle; both pyridinic and triazolyl nitrogens coordinate to Cu. | 3 · Structural analysis · Fig. 3 |
| CP3, [Cu(mu2-I)(L3)]n | [Cu(mu2-I)(L3)]n; empirical repeat C7H6CuIN4Zig-zag Cu-I single chains bridged by L3 · L3 = 4-(1H-1,2,4-triazol-1-yl)pyridine | 2D · PristineMonoclinic P21/c 2D sheet/network from Cu-I chains bridged by two nitrogen atoms of L3. | 3 · Structural analysis · Fig. 4 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| CP1 needle-shaped single crystalsresearch_0381__mat__mat_cp1 | Single Crystal · Target Sample · Pristine Framework | About 20 mg CP1 dissolved in hot CH3CN and left for one week | 5 · Synthesis of 1D [Cu2I2(L1)2]n CP1 |
| CP1 pressed pellet with silver-paste contactsresearch_0381__mat__mat_cp1 | Pellet · Target Sample · Pristine Framework | Pressed pellet prepared at 5.0 GPa for 5 min; silver paste applied for contacts | 5 · Electrical conductivity |
| CP1 bulk powderresearch_0381__mat__mat_cp1 | Powder · Target Sample · Pristine Framework | White precipitate filtered, washed with dichloromethane and CH3CN, dried under vacuum | 5 · Synthesis of 1D [Cu2I2(L1)2]n CP1 |
| CP2 yellow single crystalsresearch_0381__mat__mat_cp2 | Single Crystal · Target Sample · Pristine Framework | About 20 mg CP2 dissolved in hot CH3CN and left to grow crystals | 5 · Synthesis of 1D [Cu2I2(L2)2]n CP2 |
| CP2 pressed pellet with silver-paste contactsresearch_0381__mat__mat_cp2 | Pellet · Target Sample · Pristine Framework | Pressed pellet prepared at 5.0 GPa for 5 min; silver paste applied for contacts | 5 · Electrical conductivity |
| CP2 bulk powderresearch_0381__mat__mat_cp2 | Powder · Target Sample · Pristine Framework | Prepared in a manner like CP1 using L2; isolated bulk CP2 | 5 · Synthesis of 1D [Cu2I2(L2)2]n CP2 |
| CP3 yellow rod-like single crystalsresearch_0381__mat__mat_cp3 | Single Crystal · Target Sample · Pristine Framework | Layering aqueous KI/CuI and ethanol L3 solution with CH3CN buffer; 7-10 days | 5 · Synthesis of 1D [CuI(L3)]n CP3 |
| CP3 pressed pellet with silver-paste contactsresearch_0381__mat__mat_cp3 | Pellet · Target Sample · Pristine Framework | Pressed pellet prepared at 5.0 GPa for 5 min; silver paste applied for contacts | 5 · Electrical conductivity |
| CP3 bulk yellow powderresearch_0381__mat__mat_cp3 | Powder · Target Sample · Pristine Framework | Prepared following the CP1 procedure except with L3 | 5 · Synthesis of 1D [CuI(L3)]n CP3 |