Primary studyCore evidenceTransport Physics

Structural, Thermodynamic, and Transport Properties of the Small-Gap Two-Dimensional Metal-Organic Kagomé Materials Cu3(hexaiminobenzene)2and Ni3(hexaiminobenzene)2

Berry T., Morey J.R., Arpino K.E. et al. · Inorganic Chemistry · 2022 · 6480-6487

2materials
4samples
2synthesis routes
8measurements
42results
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.

CaveatSupport assessment: High

The article does not report porosity, electrochemical application, sensing, or thermoelectric measurements for these samples.

Caveat: Absence based on full read of the provided main-article text and rendered pages.

p001-p008 / 6480-6487 · Full article

Phase AssignmentSupport assessment: Medium

Ni3(HIB)2 is assigned a highly disordered singlet ground state with a low-lying S = 1 excited state contributing to low-temperature heat capacity.

Caveat: The paper also notes a spin contribution such as spin-wave-like behaviour is possible.

p006 / 6485 · Results and Discussion · Figure 4a · Linked to 4 structured results

Structure Property LinkSupport assessment: High

The MOFs combine localized magnetism with proximity to a metallic state in a kagome lattice.

Caveat: The transport measurements still show semiconducting gaps, not a true metallic ground state.

p006 / 6485 · Conclusion · Linked to 4 structured results

Structure Property LinkSupport assessment: Medium

The apparent spin-liquid-like thermodynamic signatures are attributed mainly to stacking faults and structural disorder rather than intrinsic quantum spin liquid physics.

Caveat: The authors note disorder may mimic or enable QSL-type states; the attribution is interpretive and based on combined diffraction and thermodynamic evidence.

p006 / 6485 · Results and Discussion · Figure 5, Table 2 · Linked to 5 structured results

Transport MechanismSupport assessment: High

Ni3(HIB)2 and Cu3(HIB)2 are small-bandgap semiconductors rather than metallic-particle/insulating-matrix composites.

Caveat: Bulk pellet measurements can still include grain-boundary effects; authors argue field dependence indicates grain-boundary scattering is not dominating.

p004 / 6483 · Results and Discussion · Figure 3 · Linked to 6 structured results

Material identities

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

MaterialCompositionStructure contextSource
Cu3(hexaiminobenzene)2Cu3(HIB)2Cu2+ ions in a two-dimensional kagome lattice · hexaiminobenzene (HIB) anions2D · PristineLayered two-dimensional kagome metal-organic framework with rotational stacking faults and interlayer shifts.p002 / 6481 · Introduction · Figure 1
Ni3(hexaiminobenzene)2Ni3(HIB)2Ni2+ ions in a two-dimensional kagome lattice · hexaiminobenzene (HIB) anions2D · PristineLayered two-dimensional kagome metal-organic framework with rotational stacking faults and interlayer shifts.p002 / 6481 · Introduction · Figure 1

Sample register

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

Show 4 sample records
SampleForm and roleProcessing and geometrySource
Cu3(HIB)2 densified pelletresearch_0185__mat__Cu3_HIB2Pellet · Target Sample · Pristine FrameworkPowder specimen densified at >1000 bar and cut to an approximately rectangular pellet for physical-property measurements.p003 / 6482 · Physical Property Measurement
Cu3(HIB)2 powderresearch_0185__mat__Cu3_HIB2Powder · Target Sample · Pristine FrameworkBlack precipitate isolated by centrifugation, washed and dried under vacuum.p002 / 6481 · Experimental Section
Ni3(HIB)2 densified pelletresearch_0185__mat__Ni3_HIB2Pellet · Target Sample · Pristine FrameworkPowder specimen densified at >1000 bar and cut to an approximately rectangular pellet for physical-property measurements.p003 / 6482 · Physical Property Measurement
Ni3(HIB)2 powderresearch_0185__mat__Ni3_HIB2Powder · Target Sample · Pristine FrameworkBlack precipitate isolated by centrifugation, washed and dried under vacuum.p002 / 6481 · Experimental Section