Gordillo M.A., Benavides P.A., McMillen C. et al. · Materials Advances · 2022 · 6157-6160
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.
Despite higher charge-carrier concentration, the iodine-treated Tb-MOF remains less conductive than the prior iodine-treated Zn-ExTTFTB MOF because spatially separated ExTTFTB ligands lack efficient through-space donor/acceptor interactions.
Caveat: The Zn-ExTTFTB comparison is literature-derived, not a first-hand sample in this paper.
p003 / article page 6159 · Electrical conductivity discussion · Linked to 1 structured result
PXRD indicates that iodine-treated Tb-MOF remains mostly crystalline after I2-induced partial oxidation.
Caveat: Authors note some peaks become broader and weaker.
p002 / article page 6158 · PXRD discussion · Fig. S3 · Linked to 1 structured result
TGA after washing/vacuum treatment supports removal of physisorbed iodine from iodine-treated Tb-MOF.
Caveat: Conclusion is inferred by the authors from TGA plateau behaviour rather than direct iodine quantification.
p002 / article page 6158 · TGA discussion · Fig. S4 · Linked to 2 structured results
Replacing Zn2+ with larger, higher-coordination Ln3+ ions enabled isostructural 3D columnar Ln-MOFs in which all four ExTTFTB carboxylate groups coordinate to lanthanide ions.
Caveat: Electronic/optical properties are studied experimentally only for representative Tb-MOF.
p002 / article page 6158 · Structure discussion · Fig. 1 · Linked to 3 structured results
Iodine treatment oxidises ExTTFTB ligands to radical cations, substantially increasing charge-carrier concentration and raising Tb-MOF pellet conductivity by about two orders of magnitude.
Caveat: Conductivity is measured on pressed microcrystalline pellets, so contact and grain-boundary resistances are included.
p003 / article page 6159 · Electrical conductivity discussion · Figs. 2 and 4 · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Er-ExTTFTB MOF | [Er(C48H25O8S4)(H2O)]n.2C3H7NO.H2O; crystal formula C54H43ErN2O12S4Er3+ lanthanide nodes coordinated by ExTTFTB carboxylates and water · butterfly-shaped pi-extended tetrathiafulvalene tetrabenzoate ligand ExTTFTB | 3D · PristineIsostructural 3D columnar Ln-ExTTFTB framework, triclinic P -1; Er(III) geometry described as distorted biaugmented trigonal prism by SHAPE analysis. | p001 / article page 6157 · Main text · Fig. 1 |
| Eu-ExTTFTB MOF | [Eu(C48H25O8S4)(H2O)]n.2C3H7NO.1.25H2O; crystal formula C54H43.50EuN2O12.25S4Eu3+ lanthanide nodes coordinated by ExTTFTB carboxylates and water · butterfly-shaped pi-extended tetrathiafulvalene tetrabenzoate ligand ExTTFTB | 3D · PristineIsostructural 3D columnar Ln-ExTTFTB framework, triclinic P -1; Eu(III) geometry described as distorted heptagonal pyramid by SHAPE analysis. | p001 / article page 6157 · Main text · Fig. 1 |
| Tb-ExTTFTB MOF | [Tb(C48H25O8S4)(H2O)]n.2C3H7NO.0.5H2O; crystal formula C54H42N2O11.50S4TbTb3+ lanthanide nodes; eight-coordinate Tb environment with carboxylate groups and one coordinated water · butterfly-shaped pi-extended tetrathiafulvalene tetrabenzoate ligand ExTTFTB | 3D · PristineIsostructural 3D columnar Ln-ExTTFTB framework, triclinic P -1, with coordinatively linked parallel columns and ovoid channels. | p002 / article page 6158 · Structure discussion · Fig. 1 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| pristine Er-MOF crystals/powderresearch_0750__mat__mat_er_exttftb | Powder · Target Sample · Pristine Framework | Prepared by the general Ln-MOF solvothermal route and dried under vacuum. | p002 / SI page S2 · Synthesis of Ln-MOFs |
| pristine Eu-MOF crystals/powderresearch_0750__mat__mat_eu_exttftb | Powder · Target Sample · Pristine Framework | Prepared by the general Ln-MOF solvothermal route and dried under vacuum. | p002 / SI page S2 · Synthesis of Ln-MOFs |
| iodine-treated Tb-MOF bulk powderresearch_0750__mat__mat_tb_exttftb | Powder · Target Sample · Doped | Evacuated Tb-MOF powder exposed to iodine vapour for 4 days, washed with hexanes, and kept under vacuum. | p002 / SI page S2 · Iodine-Treated Tb-MOF |
| iodine-treated Tb-MOF pressed pelletresearch_0750__mat__mat_tb_exttftb | Pellet · Target Sample · Doped | 2.5 mg iodine-treated material pressed under 200 MPa between Ag-coated stainless-steel rods for dc I-V measurement.Ag-coated stainless-steel electrodes in Teflon tube · ca. 0.2 mm | p002 / SI page S2 · Current-voltage measurements |
| pristine Tb-MOF bulk powder/crystalsresearch_0750__mat__mat_tb_exttftb | Powder · Pristine Control · Pristine Framework | Dark orange to red crystalline material washed with DMF, solvent-exchanged with EtOH, and dried under vacuum for 48 h. | p002 / SI page S2 · Synthesis of Ln-MOFs |
| pristine Tb-MOF pressed pelletresearch_0750__mat__mat_tb_exttftb | Pellet · Pristine Control · Pristine Framework | 2.5 mg pristine material pressed under 200 MPa between Ag-coated stainless-steel rods for dc I-V measurement.Ag-coated stainless-steel electrodes in Teflon tube · ca. 0.2 mm | p002 / SI page S2 · Current-voltage measurements |