Sarango-Ramirez M.K., Donoshita M., Yoshida Y. et al. · Angewandte Chemie - International Edition · 2023 · e202301284
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.
Ti-dobdc-LiBr is the most balanced conductor because it combines high water uptake, moderate Li-halide character, and better high-temperature retention than LiI.
Caveat: LiI has the highest 298 K/90% RH conductivity among 1:1 samples, while LiBr is favoured for stability/retention.
5 · Conclusion · Linked to 3 structured results
LiX is intercalated between Ti-dobdc layers for the 1:1 samples rather than remaining only as external salt.
Caveat: Higher LiX ratios produced pristine LiX PXRD peaks, so this claim applies most cleanly to the selected 1:1 samples.
2 · Results · Figure S1-S5 · Linked to 4 structured results
LiX incorporation improves ionic conductivity relative to pristine Ti-dobdc by increasing water uptake and adding mobile Li+ transport.
Caveat: Conductivity retention at high temperature depends strongly on the halide; LiI shows iodine-release caveats.
3 · Results · Figure 3 · Linked to 5 structured results
High-humidity conduction crosses into a low-activation-energy regime assigned to Grotthuss-type proton diffusion.
Caveat: Individual activation energies are plotted rather than tabulated; threshold is textual/graphical.
3 · Results · Figure 3b · Linked to 4 structured results
PFG-NMR supports cooperative H+ and Li+ mobility; Li+ mobility helps retain high conductivity at elevated temperatures.
Caveat: PFG-NMR fitting includes alternative models, but the authors selected the unidirectional model.
4 · Results · Figure 4 · Linked to 6 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Ti-dobdc | [Ti2(C8O6H3)3(CH3CN)1.15(C4H10O)0.3(H2O)2.5]octahedrally coordinated Ti4+ nodes · dobdc4- / H4dobdc (2,5-dihydroxyterephthalic acid) | 2D · Pristine2D layered framework with hexagonal pores along the c axis; layers supported by hydrogen bonds between non-coordinated carboxyl oxygens. | 2 · Results · Figure 1 |
| Ti-dobdc-LiBr | [Ti2(C8O6H3)3(CH3CN)1.25(H2O)4(LiBr)1]octahedrally coordinated Ti4+ nodes · dobdc4- / H4dobdc | 2D · PristineLiBr-intercalated Ti-dobdc; authors identify this as a balanced LiX interaction/high-water-uptake conductor. | S1-S2 · Sample preparation |
| Ti-dobdc-LiCl | [Ti2(C8O6H3)3(CH3CN)1(H2O)4(LiCl)0.65]octahedrally coordinated Ti4+ nodes · dobdc4- / H4dobdc | 2D · PristineLiCl-intercalated Ti-dobdc; PXRD shifts and IR C=O band support LiX intercalation between layers. | S1 · Sample preparation |
| Ti-dobdc-LiI | [Ti2(C8O6H3)3(CH3CN)1.3(H2O)4(LiI)1.1]octahedrally coordinated Ti4+ nodes · dobdc4- / H4dobdc | 2D · PristineLiI-intercalated Ti-dobdc; high low-humidity conductivity but non-Arrhenius high-temperature behaviour attributed to iodine release. | S2 · Sample preparation |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Ti-dobdc pristineresearch_0687__mat__ti_dobdc | Pellet · Pristine Control · Pristine Framework | dark-red hexagonal disk crystals; dried under dynamic vacuum at 373 K for 4 h; pelletised for impedance1 mm pellet thickness for AC impedance measurements | S1-S3 · Sample preparation; A.C. Impedance measurements |
| Ti-dobdc-LiBr (MOF:LiBr = 1:1)research_0687__mat__ti_dobdc_libr | Pellet · Target Sample · Guest Loaded | mechanically mixed and ground with LiBr; kept at 95% RH for 24 h; pelletised for impedance1 mm pellet thickness for AC impedance measurements | 5 · Conclusion |
| Ti-dobdc-LiBr (MOF:LiBr = 1:3)research_0687__mat__ti_dobdc_libr | Pellet · Target Sample · Guest Loaded | higher LiBr loading by mechanical mixing and 95% RH exposure; exact mass recipe not separately tabulated | S13/S31 · Figure S11; Table S25 · Table S25 |
| Ti-dobdc-LiBr (MOF:LiBr = 1:5)research_0687__mat__ti_dobdc_libr | Pellet · Target Sample · Guest Loaded | higher LiBr loading by mechanical mixing and 95% RH exposure; exact mass recipe not separately tabulated | S13/S31 · Figure S11; Table S25 · Table S25 |
| Ti-dobdc-LiCl (MOF:LiCl = 1:1)research_0687__mat__ti_dobdc_licl | Pellet · Target Sample · Guest Loaded | mechanically mixed and ground with LiCl; kept at 95% RH for 24 h; pelletised for impedance1 mm pellet thickness for AC impedance measurements | 2 · Results · Figure 1 |
| Ti-dobdc-LiI (MOF:LiI = 1:1)research_0687__mat__ti_dobdc_lii | Pellet · Target Sample · Guest Loaded | mechanically mixed and ground with LiI; kept at 95% RH for 24 h; pelletised for impedance1 mm pellet thickness for AC impedance measurements | 3 · Results · Figure S7 |