Primary studyCore evidenceTransport Physics

A one-dimensional conductive metal-organic framework with extended π-d conjugated nanoribbon layers

Shang S., Du C., Liu Y. et al. · Nature Communications · 2022 · 7599

1materials
6samples
4synthesis routes
21measurements
77results
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.

Application RelevanceSupport assessment: High

In aqueous 3 M KOH, DDA-Cu composite electrodes show double-layer capacitive behaviour with high Cg, high Cs and good cycling stability.

Caveat: Electrode contains carbon black and PTFE, so values are application-composite performance.

10 · Supplementary Fig. 19 text · Supplementary Fig. 19 · Linked to 4 structured results

CaveatSupport assessment: High

DDA-Cu is stable over 24 h in several solvents, boiling water and base, but is decomposed/largely loses crystallinity in 1 M HCl.

Caveat: Limited to the tested 24 h soaking conditions.

5 · Supplementary Fig. 9 text · Supplementary Fig. 9 · Linked to 2 structured results

Phase AssignmentSupport assessment: High

DDA-Cu is a crystalline one-dimensional conductive MOF built from DDA ligands and bimetallic Cu2+ nodes, forming nanoribbon layers.

Caveat: Atomic coordinates are available in SI Table 1, but no local CIF file was supplied.

2 · Results - Synthesis and characterization · Fig. 1 · Linked to 4 structured results

Transport MechanismSupport assessment: High

DDA-Cu is a highly conductive n-type MOF based on Hall and Mott-Schottky measurements.

Caveat: Measured on film/device samples rather than free powder.

13 · Supplementary Fig. 22 text · Supplementary Fig. 22; Table 6 · Linked to 4 structured results

Transport MechanismSupport assessment: Medium

The optoelectronic response is attributed to photogenerated carriers rather than light-induced heating.

Caveat: Thermal check is device-level and does not fully quantify intrinsic photocarrier kinetics.

16 · Supplementary Fig. 27 text · Supplementary Fig. 27 · Linked to 3 structured results

Transport MechanismSupport assessment: High

High conductivity is attributed to efficient charge transport along DDA-Cu chains and the pi-pi stacking direction.

Caveat: DFT calculations use a perfect-crystal model; authors caution that defects/doping/oxidation may change applicability.

7 · Discussion · Fig. 4e · Linked to 3 structured results

Material identities

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

MaterialCompositionStructure contextSource
DDA-CuC14H6N2O4Cu2double Cu ions / bimetallic Cu2+ sites · 1,5-diamino-4,8-dihydroxy-9,10-anthraceneedione (DDA)1D · Pristine1D DDA-Cu MOF nanoribbon layers with extended pi-d conjugated nanoribbon plane and out-of-plane pi-pi stacking; P2/m cell a=11.8 A, b=7.9 A, c=3.2 A, alpha=beta=90.0 deg, gamma=87.7 deg.1-2 · Abstract and Results · Fig. 1

Sample register

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

Show 6 sample records
SampleForm and roleProcessing and geometrySource
DDA-Cu MOF crystals / bulk precipitateresearch_0009__mat__mat_dda_cuPowder · Target Sample · Pristine Frameworkblue-black precipitate dried in vacuum oven at 90 C for 12 h; needle-like crystalsnone · not applicable7 · Methods - Synthesis of DDA-Cu MOF crystals
DDA-Cu composite electrode on nickel foamresearch_0009__mat__mat_dda_cuElectrode · Composite Sample · CompositeDDA-Cu crystals/PTFE/conductive carbon black 7:1:2, ground, coated, dried at 90 C for 8 h1 x 1 cm nickel foam · not reported; active material about 4 mg per electrode8 · Methods - Electrochemical measurement
DDA-Cu MOF filmresearch_0009__mat__mat_dda_cuThin Film · Target Sample · Pristine Frameworklarge-area liquid-liquid interface filmtransferable to sapphire, Si/SiO2 and PET · ~8 nm after 12 h; ~245 nm after 72 h; 25 nm film used for GIWAXS4 · Results - Synthesis and characterization · Fig. 3; Supplementary Fig. 12
DDA-Cu film two-terminal device on Si/SiO2research_0009__mat__mat_dda_cuThin Film · Target Sample · Pristine Framework12 h growth film transferred to SiO2/Si; I-V measured in N2 at room temperatureSiO2/Si, 300 nm SiO2, interdigital Au electrodes · about 8 nm DDA-Cu film; 30 nm Au electrodes; l=50 um, d=1400 um8 · Methods - Electronic device · Supplementary Fig. 16
DDA-Cu flexible optoelectronic synapse on PETresearch_0009__mat__mat_dda_cuThin Film · Target Sample · Pristine FrameworkDDA-Cu film transferred on PET substrate for flexible devicesPET · not separately reported8 · Methods - Electronic device · Fig. 5b
ideal DDA-Cu crystal modelresearch_0009__mat__mat_dda_cuModel · Model System · Modelperfect-crystal computational modelnone · not applicable7 · Methods - Computation method