Dontireddy G.M.R., Suman S.P., Merino-Gardea J.L. et al. · Journal of Materials Chemistry A · 2025 · 8734-8741
Open a family to keep every result attached to its sample, method and conditions.
Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.
Optical band gaps also show little or no correlation with inter-layer spacing across the tested Ga9HHTP4 and Ni6HHTT3 samples.
Caveat: Ga9HHTP4 has a text-reported range, but Ni6HHTT3 numeric values are only visually estimated from Fig. 5b.
p006 · Charge transport properties · Fig. 5 · Linked to 2 structured results
Electrical conductivity does not correlate with inter-layer spacing in the Ga9HHTP4 or Ni6HHTT3 sample families.
Caveat: Several solvent-specific conductivity values are read from plotted data with replicate scatter; pellet making/setup differences are acknowledged for Rice versus UTEP duplicate measurements.
p005 · Charge transport properties · Fig. 4 · Linked to 5 structured results
Water removal is presented as a potentially general post-synthetic strategy to access contracted lattices in octahedrally coordinated 2D cMOFs.
Caveat: Only two water-hosting octahedral 2D cMOFs are directly tested, and Cu3HHTT2 is used only as a heat-control analogue.
p005 · Solvent removal in Ni6HHTT3 · Linked to 4 structured results
Partial water removal during heating drives the reversible contraction of Ga9HHTP4, and water soaking re-expands the lattice toward the pristine state.
Caveat: FTIR indicates water is retained after heating, so removal is partial and the exact sequence of in-pore versus axial water removal remains unresolved.
p004 · Solvent removal/exchange in Ga9HHTP4 · Fig. S9 · Linked to 5 structured results
The lack of conductivity and band-gap correlation with inter-layer spacing suggests a greater role for in-plane electron conduction than previously attributed in these octahedrally coordinated MOFs.
Caveat: Authors note that single-crystalline samples will be crucial to test the hypothesis; bulk pellet measurements may include grain-boundary and disorder effects.
p006 · Discussion · Linked to 7 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Cu3HHTT2Browse family: Cu₃(HHTT)₂ (tetraaza–HHTT) | Cu3(hexahydroxytetraazanaphthotetraphene)2Cu nodes in square-planar coordination network · HHTT | 2D · PristineSquare-planar 2D cMOF analogue of Ni6HHTT3 that does not host water molecules. | p005 · Solvent removal in Ni6HHTT3 · Fig. S14 |
| Ga9HHTP4 | Ga9(hexahydroxytriphenylene)4 with ordered sulfate anionsGa(III) in octahedral coordination environments; alternating polymeric layers and complex layers · 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) | 2D · PristineLayer-stacked octahedrally coordinated 2D cMOF, reported P-3c1 Pawley fit retained after heating; pristine inter-layer separation 3.45 Angstrom. | p002 · Results · Fig. 1 |
| Ni6HHTT3 | Ni6(hexahydroxytetraazanaphthotetraphene)3Ni(II) in octahedral coordination environments with hydrated/trinuclear complex motifs · 2,3,7,8,12,13-hexahydroxytricycloquinazoline / hexahydroxytetraazanaphthotetraphene (HHTT) | 2D · PristineLayered HHTT-based 2D cMOF; pores occupied by trinuclear complexes, described as non-porous; pristine inter-layer separation 3.30 Angstrom. | p002 · Results · Fig. 3 and Fig. S3 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Heat-treated Cu3HHTT2research_0510__mat__cu3hhtt2 | Powder · Target Sample · Pristine Framework | Cu3HHTT2 heated at 90 deg C for comparison with pristine Cu3HHTT2. | p005 · Solvent removal in Ni6HHTT3 · Fig. S14 |
| Cu3HHTT2 multi-sample comparison seriesresearch_0510__mat__cu3hhtt2 | Powder · Paper Level Unspecified · Unknown | paper_level_unspecified | p005 · Solvent removal in Ni6HHTT3 · Fig. S14 |
| Pristine Cu3HHTT2 powderresearch_0510__mat__cu3hhtt2 | Powder · Pristine Control · Pristine Framework | Pristine Cu3HHTT2 control; synthesis not reported in this paper. | p005 · Solvent removal in Ni6HHTT3 · Fig. S14 |
| Acetonitrile-soaked HT-Ga9HHTP4research_0510__mat__ga9hhtp4 | Powder · Target Sample · Guest Loaded | HT-Ga9HHTP4 soaked overnight in acetonitrile, filtered, then briefly heated at 60 deg C. | p004 · Solvent removal/exchange in Ga9HHTP4 · Fig. 2 |
| Ambient-exposed HT-Ga9HHTP4research_0510__mat__ga9hhtp4 | Powder · Target Sample · Guest Loaded | Heat-treated Ga9HHTP4 exposed to ambient conditions for several days to one week. | p003 · Solvent removal/exchange in Ga9HHTP4 · Fig. S7 |
| Chloroform-soaked HT-Ga9HHTP4research_0510__mat__ga9hhtp4 | Powder · Target Sample · Guest Loaded | HT-Ga9HHTP4 soaked overnight in chloroform. | p016 · Figure S10 · Fig. S10 |
| Dichloromethane-soaked HT-Ga9HHTP4research_0510__mat__ga9hhtp4 | Powder · Target Sample · Guest Loaded | HT-Ga9HHTP4 soaked overnight in dichloromethane. | p016 · Figure S10 · Fig. S10 |
| DMF-soaked HT-Ga9HHTP4research_0510__mat__ga9hhtp4 | Powder · Target Sample · Guest Loaded | HT-Ga9HHTP4 soaked overnight in N,N-dimethylformamide, filtered, then briefly heated at 60 deg C. | p005 · Charge transport properties · Fig. 4 |
| DMSO-soaked HT-Ga9HHTP4research_0510__mat__ga9hhtp4 | Powder · Target Sample · Guest Loaded | HT-Ga9HHTP4 soaked overnight in dimethyl sulfoxide. | p016 · Figure S10 · Fig. S10 |
| Ethanol-soaked HT-Ga9HHTP4research_0510__mat__ga9hhtp4 | Powder · Target Sample · Guest Loaded | HT-Ga9HHTP4 soaked overnight in ethanol, filtered, then briefly heated at 60 deg C. | p004 · Solvent removal/exchange in Ga9HHTP4 · Fig. 2 |
| Heat-treated Ga9HHTP4 (HT-Ga9HHTP4)research_0510__mat__ga9hhtp4 | Powder · Target Sample · Guest Loaded | Heated under dynamic vacuum at 90 deg C for 12 h; only partial water removal inferred. | p003 · Procedures for heating and soaking samples |
| Ga9HHTP4 multi-sample comparison seriesresearch_0510__mat__ga9hhtp4 | Powder · Paper Level Unspecified · Unknown | paper_level_unspecified | p002 · Synthesis of Ga9HHTP4 |
| Propylene carbonate-soaked HT-Ga9HHTP4research_0510__mat__ga9hhtp4 | Powder · Target Sample · Guest Loaded | HT-Ga9HHTP4 soaked overnight in propylene carbonate. | p016 · Figure S10 · Fig. S10 |
| Pristine Ga9HHTP4 powderresearch_0510__mat__ga9hhtp4 | Powder · Pristine Control · Pristine Framework | As-synthesised dark blue powder collected by centrifugation and washed with water and acetone. | p002 · Synthesis of Ga9HHTP4 |
| Water-soaked HT-Ga9HHTP4research_0510__mat__ga9hhtp4 | Powder · Target Sample · Guest Loaded | HT-Ga9HHTP4 soaked overnight in water, filtered, then briefly heated at 60 deg C to remove residues. | p003 · Solvent removal/exchange in Ga9HHTP4 · Fig. 2 and Fig. S8 |
| Heat-treated Ni6HHTT3research_0510__mat__ni6hhtt3 | Powder · Target Sample · Guest Loaded | Ni6HHTT3 heated under dynamic vacuum at 90 deg C for 12 h. | p005 · Solvent removal in Ni6HHTT3 · Fig. 3 and Fig. S15 |
| Ni6HHTT3 multi-sample comparison seriesresearch_0510__mat__ni6hhtt3 | Powder · Paper Level Unspecified · Unknown | paper_level_unspecified | p002 · Synthesis of Ni6HHTT3 MOF |
| Pristine Ni6HHTT3 powderresearch_0510__mat__ni6hhtt3 | Powder · Pristine Control · Pristine Framework | As-synthesised black powder washed with water, DMF, ethanol and acetone. | p002 · Synthesis of Ni6HHTT3 MOF |
| Water-soaked HT-Ni6HHTT3research_0510__mat__ni6hhtt3 | Powder · Target Sample · Guest Loaded | Heat-treated Ni6HHTT3 soaked in water. | p005 · Solvent removal in Ni6HHTT3 · Fig. S16 |