Primary studyCore evidenceTheory Transport

Two-Dimensional Conjugated Metal–Organic Frameworks with a Ring-in-Ring Topology and High Electrical Conductance

Yang M., Zhang Y., Zhu R. et al. · Angewandte Chemie - International Edition · 2024 · e202405333

7materials
19samples
7synthesis routes
30measurements
94results
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.

Phase AssignmentSupport assessment: High

The three M-DHHBTN MOFs form a heterogeneous dual-pore ring-in-ring 2D framework topology with simultaneous hexagonal and rectangular pores.

Caveat: Scheme pore sizes are schematic figure-read values; pore-width distribution from N2 analysis is 1.0-1.2 nm.

2 · Introduction/Structural Characterizations · Figure 1d; Scheme 1; Figure 2 · Linked to 5 structured results

Structure Property LinkSupport assessment: High

Cu-DHHBTN has the strongest THz photoconductivity, highest room-temperature THz mobility and longest OPTP/fs-TA carrier relaxation among the three M-DHHBTN films.

Caveat: THz mobility is model-derived from Drude-Smith fitting and DFT effective masses.

8 · THz Photoconductivity · Figure 6; Tables S5/S8 · Linked to 4 structured results

Transport MechanismSupport assessment: High

Cu-DHHBTN is the best bulk electrical conductor in this family, reaching 0.21 S cm-1 at 298 K and showing the lowest activation energy.

Caveat: Bulk values are measured on pressed polycrystalline pellets; authors also predict much higher pristine single-crystal mobility under c=0 assumptions.

6 · Electronic Properties · Figure 5 · Linked to 4 structured results

Transport MechanismSupport assessment: Medium

DFT calculations suggest anisotropic charge transport with important out-of-plane pathways and higher DOS near the Fermi level for Cu-DHHBTN than comparative Cu-HHB, Cu-HHTP and Cu-HHTN models.

Caveat: Computational claim depends on model structure and DFT settings; no synthesis routes are attached to comparative model systems.

S19-S20 · Computational Study of Electronic Properties · Figures S23-S25 · Linked to 5 structured results

Transport MechanismSupport assessment: Medium

Mixed valence of the DHHBTN ligand and Cu(II)/Cu(I) in Cu-DHHBTN is proposed to facilitate charge transfer and enhance conductivity.

Caveat: Mechanistic assignment is inferred from spectroscopy and comparison to literature rather than direct transport-pathway measurement.

5 · Analysis of the Electronic Structure · Figure 4 · Linked to 4 structured results

Material identities

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

MaterialCompositionStructure contextSource
Co-DHHBTNCo3(C54H18O12)Co MO4-type nodes; Co(II) assigned by XPS/XAFS · DHHBTN catecholate/semiquinone/quinone ligand2D · PristineRing-in-ring dual-pore honeycomb topology; eclipsed layered packing; P6/MMM model, a=b=30.15 A, c=3.43 A.2 · Results and Discussion · Figure 2
Cu-DHHBTNCu3(C54H18O12)Cu MO4-type nodes; mixed Cu(II)/Cu(I) by XPS · DHHBTN catecholate/semiquinone/quinone ligand2D · PristineRing-in-ring dual-pore honeycomb topology; slipped-parallel layered packing; a=29.73 A, b=30.04 A, c=3.47 A.2 · Structural Characterizations · Figure 2; Figure S7c
Cu-HHB modelBrowse family: Cu₃(C₆O₆)₂ (Cu–THQ / Cu–HHB)Cu hexahydroxybenzene framework modelCuO4 nodes · HHB ligand model2D · Model SystemComparative homogeneous-pore computational model used for band/DOS and charge-density comparisons.S19 · Computational Study of Electronic Properties · Figure S23
Cu-HHTN modelCu HHTN framework modelCuO4 nodes · HHTN ligand model2D · Model SystemComparative computational model for band dispersion and DOS near the Fermi level.S19 · Computational Study of Electronic Properties · Figure S23
Cu-HHTP modelBrowse family: Cu₃(HHTP)₂ / Cu–HHTPCu HHTP framework modelCuO4 nodes · HHTP ligand model2D · Model SystemComparative computational model for band dispersion and DOS near the Fermi level.S19 · Computational Study of Electronic Properties · Figure S23
DHHBTN ligandC54H30O12None · 2,3,6,7,12,13,16,17,22,23,26,27-dodechydroxylhexabenzo[a,c,k,m,u,w]trinaphthylene0D · Model SystemD3h-symmetric dodecatopic branched conjugated ligand prepared through Suzuki coupling, Scholl reaction and dealkylation.2 · Synthesis of M-DHHBTN MOFs · Scheme S1 cited
Ni-DHHBTNNi3(C54H18O12)Ni MO4-type nodes; Ni(II) assigned by XPS/XAFS · DHHBTN catecholate/semiquinone/quinone ligand2D · PristineRing-in-ring dual-pore honeycomb topology; eclipsed layered packing; P6/MMM model, a=b=30.21 A, c=3.43 A.2 · Results and Discussion · Figure 2

Sample register

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

Show 19 sample records
SampleForm and roleProcessing and geometrySource
Activated Co-DHHBTN for N2 sorptionresearch_0762__mat__co_dhhbtnPowder · Target Sample · Pristine FrameworkSoaked in water at 60 C for 18 h with solvent exchanges every 6 h; dried at 60 C under 20 mTorr for 24 h.S24 · Brunauer-Emmett-Teller Analysis · Figure S32
Co-DHHBTN thin film on fused silica/quartzresearch_0762__mat__co_dhhbtnThin Film · Target Sample · Pristine FrameworkMOF membrane formed at liquid/liquid interface and transferred to quartz substrate.quartz/fused silica · ca. 340 nm by AFMS21 · Preparation of M-DHHBTN MOF Films · Figure S38
Co-DHHBTN pressed pelletresearch_0762__mat__co_dhhbtnPellet · Target Sample · Pristine Framework30 mg powder pressed in 6 mm die for 5 min at 1000 psi.0.3 mmS25 · Conductivity Measurement · Figure S34
Co-DHHBTN powderresearch_0762__mat__co_dhhbtnPowder · Target Sample · Pristine FrameworkBrownish-black solid collected by centrifugation, washed with water and ethanol, and dried under vacuum at 40 C for 24 h.S8 · Synthesis of Co-DHHBTN MOF · Scheme S2
Co-DHHBTN computational modelresearch_0762__mat__co_dhhbtnModel · Model System · ModelDFT model system; no experimental synthesis route associated with this sample row.S17-S20 · Computational Study of Electronic Properties · Figures S20-S25
Activated Cu-DHHBTN for N2 sorptionresearch_0762__mat__cu_dhhbtnPowder · Target Sample · Pristine FrameworkSoaked in water at 60 C for 18 h with solvent exchanges every 6 h; dried at 60 C under 20 mTorr for 24 h.S24 · Brunauer-Emmett-Teller Analysis · Figure S32
Cu-DHHBTN thin film on fused silica/quartzresearch_0762__mat__cu_dhhbtnThin Film · Target Sample · Pristine FrameworkMOF membrane formed at liquid/liquid interface and transferred to quartz substrate.quartz/fused silica · ca. 130 nm by AFMS27 · Atomic Force Microscopy Images · Figure S38
Cu-DHHBTN pressed pelletresearch_0762__mat__cu_dhhbtnPellet · Target Sample · Pristine Framework30 mg powder pressed in 6 mm die for 5 min at 1000 psi.0.3 mmS25 · Conductivity Measurement · Figure S34
Cu-DHHBTN powderresearch_0762__mat__cu_dhhbtnPowder · Target Sample · Pristine FrameworkBlack-green solid collected by centrifugation, washed with water and ethanol, and dried under vacuum at 40 C for 24 h.S9 · Synthesis of Cu-DHHBTN MOF · Scheme S4
Cu-DHHBTN computational modelresearch_0762__mat__cu_dhhbtnModel · Model System · ModelDFT model system; no experimental synthesis route associated with this sample row.S17-S20 · Computational Study of Electronic Properties · Figures S20-S25
Cu-HHB computational modelresearch_0762__mat__cu_hhb_modelModel · Model System · ModelDFT model system; no experimental synthesis route associated with this sample row.S17-S20 · Computational Study of Electronic Properties · Figures S20-S25
Cu-HHTN computational modelresearch_0762__mat__cu_hhtn_modelModel · Model System · ModelDFT model system; no experimental synthesis route associated with this sample row.S17-S20 · Computational Study of Electronic Properties · Figures S20-S25
Cu-HHTP computational modelresearch_0762__mat__cu_hhtp_modelModel · Model System · ModelDFT model system; no experimental synthesis route associated with this sample row.S17-S20 · Computational Study of Electronic Properties · Figures S20-S25
DHHBTN ligand bulk solidresearch_0762__mat__dhhbtn_ligandPowder · Pristine Control · Pristine FrameworkBlack-purple pellet collected after BBr3 dealkylation; dried/characterised by NMR and HR-MS.S5 · Synthesis of DHHBTN · Scheme S1
Activated Ni-DHHBTN for N2 sorptionresearch_0762__mat__ni_dhhbtnPowder · Target Sample · Pristine FrameworkSoaked in water at 60 C for 18 h with solvent exchanges every 6 h; dried at 60 C under 20 mTorr for 24 h.S24 · Brunauer-Emmett-Teller Analysis · Figure S32
Ni-DHHBTN thin film on fused silica/quartzresearch_0762__mat__ni_dhhbtnThin Film · Target Sample · Pristine FrameworkMOF membrane formed at liquid/liquid interface and transferred to quartz substrate.quartz/fused silica · ca. 120 nm by AFMS27 · Atomic Force Microscopy Images · Figure S38
Ni-DHHBTN pressed pelletresearch_0762__mat__ni_dhhbtnPellet · Target Sample · Pristine Framework30 mg powder pressed in 6 mm die for 5 min at 1000 psi.0.3 mmS25 · Conductivity Measurement · Figure S34
Ni-DHHBTN powderresearch_0762__mat__ni_dhhbtnPowder · Target Sample · Pristine FrameworkBlack solid collected by centrifugation, washed with water and ethanol, and dried under vacuum at 40 C for 24 h.S9 · Synthesis of Ni-DHHBTN MOF · Scheme S3
Ni-DHHBTN computational modelresearch_0762__mat__ni_dhhbtnModel · Model System · ModelDFT model system; no experimental synthesis route associated with this sample row.S17-S20 · Computational Study of Electronic Properties · Figures S20-S25