Primary studyCore evidenceTransport Physics

Tuning the Structure-Property Relationships of Metallophthalocyanine-Based Two-Dimensional Conductive Metal-Organic Frameworks with Different Metal Linkages

Noh H.-J., Cline E., Pennington D.L. et al. · Journal of the American Chemical Society · 2025 · 8240-8249

4materials
11samples
4synthesis routes
45measurements
88results
6claims 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.

Structure Property LinkSupport assessment: High

CuPc-O-Cu has the highest room-temperature conductivity because it combines the shortest interlayer distance, mixed-valence Cu+/Cu2+ linkage and the narrowest optical band gap.

Caveat: Conductivity is measured on pressed pellets, so absolute values may be affected by crystallite packing and contacts.

main p.8 · Results and Discussion · Figures 2-4 · Linked to 5 structured results

Structure Property LinkSupport assessment: High

The identity and d-electron count of the Ni, Cu and Zn linking metal nodes drive different interlayer stacking configurations in CuPc-O-M MOFs.

Caveat: Causal interpretation is supported by DFT and structural data but not by direct observation of every intermediate coordination state.

main p.9 · Results and Discussion · Figure 5 · Linked to 4 structured results

Synthesis MechanismSupport assessment: High

Optimised solvent, base and acetate conditions produced highly crystalline CuPc-O-M powders, enabling improved structure-property measurements.

Caveat: Optimisation comparisons are based on PXRD patterns shown in SI figures rather than quantified crystallinity metrics for every screening condition.

SI p.11-20 · Section S2 Synthetic procedures · Tables S1-S3; Figures S4-S6 · Linked to 3 structured results

Transport MechanismSupport assessment: High

Charge transport in the CuPc-O-M series is dominated by interlayer through-space pi-stacking rather than in-plane through-bond transport.

Caveat: Measured pellet conductivities also include interparticle grain-boundary effects, as the authors note for activation energies.

main p.8-10 · Results and Discussion; Conclusions · Figure 5 · Linked to 4 structured results

Transport MechanismSupport assessment: High

CuPc-O-Zn shows lower conductivity and a wider optical band gap because its inclined interlayer stacking reduces orbital overlap in the stacking direction.

Caveat: Zn also has larger crystal domains, which affects activation energy in the opposite direction for pellet measurements.

main p.9 · Results and Discussion · Figure 5d · Linked to 5 structured results

Transport MechanismSupport assessment: Medium

The lower activation energy of CuPc-O-Zn is attributed to larger crystal domains causing less thermally activated hopping across grain boundaries in pressed pellets.

Caveat: This is an interpretation of pellet transport rather than a direct single-crystal measurement.

main p.8 · Results and Discussion · Figure 4 · Linked to 4 structured results

Material identities

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

MaterialCompositionStructure contextSource
CuPc-O-Cu(CuPc)Cu2, approximate elemental-analysis basisCopper phthalocyanine core linked by Cu bis(dioxolene) nodes; XPS indicates mixed-valence Cu+/Cu2+ linkage · Deprotonated octahydroxyl copper phthalocyanine (CuPc-O8)2D · PristineHighly crystalline layered 2D MOF with eclipsed AA interlayer stacking; Pawley-refined P4/mmm, a=b=17.508 A, c=3.16 A.main p.4 · Results and Discussion · Figures 1,2; Figure S8
CuPc-O-Ni(CuPc)Ni2, approximate elemental-analysis basisCopper phthalocyanine core linked by Ni2+ bis(dioxolene) nodes · Deprotonated octahydroxyl copper phthalocyanine (CuPc-O8)2D · PristineHighly crystalline layered 2D MOF with eclipsed AA interlayer stacking; Pawley-refined P4/mmm, a=b=17.661 A, c=3.25 A.main p.3-4 · Results and Discussion · Figures 1,2; Figure S7
CuPc-O-Zn(CuPc)Zn2, approximate elemental-analysis basisCopper phthalocyanine core linked by Zn2+ bis(dioxolene) nodes; possible axial H2O coordination to Zn · Deprotonated octahydroxyl copper phthalocyanine (CuPc-O8)2D · PristineHighly crystalline layered 2D MOF with inclined AA interlayer stacking; Pawley-refined a=b=17.518 A, c=3.24 A, alpha=beta=84 deg, gamma=90 deg.main p.3-5 · Results and Discussion · Figures 1,2; Figure S9
(2,3,9,10,16,17,23,24-octahydroxyphthalocyanine)copper(II), CuPc(OH)8C32H16CuN8O8Molecular Cu(II) centre in copper phthalocyanine; no extended MOF node · Octahydroxyl copper phthalocyanine ligand precursor0D · PristineMolecular phthalocyanine precursor and conductivity control, not a framework.SI p.9-10 · Section S2 Synthetic procedures · Scheme S1

Sample register

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

Show 11 sample records
SampleForm and roleProcessing and geometrySource
CuPc-O-Cu DFT model systemresearch_0014__mat__cupc_o_cuModel · Model System · ModelPeriodic framework model for DFT/HSEsol band structure calculations and +/-0.15 A interlayer-spacing perturbation.main p.8 · Results and Discussion · Figure 5c
CuPc-O-Cu pressed pelletresearch_0014__mat__cupc_o_cuPellet · Target Sample · Pristine Framework25-30 mg powder pressed in 6 x 6 mm dry pellet die for 10 min at approximately 800 psi; three synthetic batches measured.carbon-paste/gold-wire four-contact probe fixture · 390-450 um pellet thickness range for pelletized samplesSI p.43 · Section S15 Measurements of electrical conductivity · Figure S28; Figure S29
CuPc-O-Cu black powderresearch_0014__mat__cupc_o_cuPowder · Target Sample · Pristine FrameworkOptimised N.O. 1 product washed with DMF, water, methanol and acetone; dried at 50 deg C under vacuum for 12 h.SI p.15 · Section S2 Synthetic procedures · Table S2
CuPc-O-Ni DFT model systemresearch_0014__mat__cupc_o_niModel · Model System · ModelPeriodic framework model for DFT/HSEsol band structure calculations.SI p.47 · Section S16 Density Functional Theory
CuPc-O-Ni pressed pelletresearch_0014__mat__cupc_o_niPellet · Target Sample · Pristine Framework25-30 mg powder pressed in 6 x 6 mm dry pellet die for 10 min at approximately 800 psi; three synthetic batches measured.carbon-paste/gold-wire four-contact probe fixture · 390-450 um pellet thickness range for pelletized samplesSI p.43 · Section S15 Measurements of electrical conductivity · Figure S28; Figure S29
CuPc-O-Ni black powderresearch_0014__mat__cupc_o_niPowder · Target Sample · Pristine FrameworkOptimised N.O. 1 product washed with DMF, water, methanol and acetone; dried at 50 deg C under vacuum for 12 h.SI p.11 · Section S2 Synthetic procedures · Table S1
CuPc-O-Zn DFT model systemresearch_0014__mat__cupc_o_znModel · Model System · ModelPeriodic inclined-stacking framework model for DFT/HSEsol band structure calculations.main p.9 · Results and Discussion · Figure 5d
CuPc-O-Zn pressed pelletresearch_0014__mat__cupc_o_znPellet · Target Sample · Pristine Framework25-30 mg powder pressed in 6 x 6 mm dry pellet die for 10 min at approximately 800 psi; three synthetic batches measured.carbon-paste/gold-wire four-contact probe fixture · 390-450 um pellet thickness range for pelletized samplesSI p.43 · Section S15 Measurements of electrical conductivity · Figure S28; Figure S29
CuPc-O-Zn black powderresearch_0014__mat__cupc_o_znPowder · Target Sample · Pristine FrameworkOptimised N.O. 1 product washed with DMF, water, methanol and acetone; dried at 50 deg C under vacuum for 12 h.SI p.18 · Section S2 Synthetic procedures · Table S3
CuPc(OH)8 pressed pelletresearch_0014__mat__cupc_oh8Pellet · Pristine Control · Unknown25-30 mg powder pressed in 6 x 6 mm dry pellet die for 10 min at approximately 800 psi.carbon-paste/gold-wire four-contact probe fixture · 390-450 um pellet thickness range for pelletized samplesSI p.43 · Section S15 Measurements of electrical conductivity · Figure S28; Table S8
CuPc(OH)8 monomer powderresearch_0014__mat__cupc_oh8Powder · Pristine Control · UnknownGreenish precursor powder dried at 50 deg C under reduced pressure; also pelletised for conductivity comparison.SI p.10 · Section S2 Synthetic procedures · Scheme S1