Primary studyCore evidenceTransport Physics

A novel lamella 2D Ag(I) coordination polymer of graphite-like structure featuring short interlayer distance

Sun D., Luo G.-G., Xu Q.-J. et al. · Inorganic Chemistry Communications · 2009 · 782-784

1materials
3samples
1synthesis routes
7measurements
43results
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.

OtherSupport assessment: Medium

The solid-state blue photoluminescence of 1 is attributed by the discussion mainly to intraligand pi-pi* emission, with coordination-induced red shift relative to free ligand.

Caveat: The abstract says the emission may be LLCT, while the later discussion says intraligand pi-pi* fluorescence; this internal inconsistency is preserved.

2 · Photoluminescence discussion · Fig. 3 · Linked to 3 structured results

Phase AssignmentSupport assessment: High

Compound 1 is an infinite 2D lamella Ag(I) coordination polymer with a graphite-like 6^3-hcb honeycomb topology containing Ag4 and Ag6 fused hexagonal rings.

Caveat: The extracted article text renders some crystallographic symbols imperfectly, but the CIF confirms P-1 and the formula.

2 · Structure description · Fig. 2 · Linked to 4 structured results

Phase AssignmentSupport assessment: Medium

The bulk product is treated as phase-pure because the experimental PXRD pattern is consistent with the simulated pattern from the single-crystal model.

Caveat: PXRD agreement is described qualitatively; no Rietveld refinement or impurity quantification is reported.

1 · Characterisation discussion · Fig. S2 · Linked to 3 structured results

Structure Property LinkSupport assessment: Medium

The short graphite-like interlayer distance is attributed to a geometry with no ligands perpendicular to the 2D sheets, plus hydrogen bonding, pi-pi stacking and Ag-pi interactions.

Caveat: This is the authors' structural interpretation from distances and packing, not a separately quantified energetic analysis.

2 · Crystal packing discussion · Fig. 2c · Linked to 4 structured results

Transport MechanismSupport assessment: Medium

Compound 1 is assigned as a room-temperature semiconductor with conductivity of 5.56 x 10^-7 S cm^-1.

Caveat: The assignment is based on a room-temperature I-V/conductivity result from a compacted pellet; temperature dependence is not reported.

3 · Conductivity discussion · Fig. S4 · Linked to 4 structured results

Transport MechanismSupport assessment: Medium

Aromatic interactions in 1 may provide an electron-transfer pathway, but the conductivity remains low because direct Ag-Ag interactions are absent.

Caveat: Only ambient two-probe pellet conductivity is reported; no temperature-dependent data or contact-resistance analysis is given.

3 · Conductivity discussion · Fig. S4 · Linked to 4 structured results

Material identities

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

MaterialCompositionStructure contextSource
Ag6(BTC)2(APYZ)6.9H2O (1)Ag6(BTC)2(APYZ)6.9H2O; CIF formula sum C42 H54 Ag6 N18 O21Ag(I); six crystallographically unique Ag(I) ions forming Ag4 and Ag6 fused hexagonal rings · benzene-1,3,5-tricarboxylate (BTC3-) and 2-aminopyrazine (APYZ)2D · PristineLamella 2D graphite-like 6^3-hcb honeycomb layer; triclinic P-1 single-crystal structure.1 · Abstract

Sample register

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

Show 3 sample records
SampleForm and roleProcessing and geometrySource
Pale yellow block crystals of 1research_0720__mat__ag_btc_apyz_1Single Crystal · Target Sample · Pristine FrameworkSlow-evaporated crystals isolated with deionised water and dried in air.3 · Reference 8
Compacted pellet of 1research_0720__mat__ag_btc_apyz_1Pellet · Target Sample · Pristine FrameworkCompacted pellet for room-temperature two-probe I-V/conductivity measurement.0.2 x 0.2 x 0.17 mm3 · Conductivity discussion · Fig. S4
Bulk powder/crystalline solid of 1research_0720__mat__ag_btc_apyz_1Powder · Target Sample · Pristine FrameworkSolid-state sample; measured as KBr pellet for IR and solid powder for photoluminescence.2 · Experimental Procedures