Synthesis of Type II Porous Liquids from Nonporous Metal–Organic Polyhedra Enhanced by Host–Guest Complexation
Why this work is in the frame
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Bibliographic record
Abstract
Abstract The synthesis of Type II porous liquids (PLs) from metal–organic polyhedra, a kind of excellent porous molecular sources, suffers from their strong crystallization tendency induced poor solubility. Herein, we propose a host–guest complexation enhanced dissolution strategy for constructing Type II PLs from MOPs with record‐high concentration. Benefitting from host–guest interactions between pillar[5]arene and n ‐alkyl chains, a Type II PL (P5‐PL) is developed by dissolving apolar n ‐dodecyl‐functionalized metal–organic polyhedra (MOP‐18) in polar liquid pillar[5]arene (P5‐L), exhibiting solubility much higher than all MOP‐based Type II PLs reported to date. MOP‐18, being nonporous in the solid state because of molecular packing‐induced pore blockage, displays permanent molecular porosity when molecularly and randomly dispersed in P5‐L to form P5‐PL, as confirmed by experimental and simulation results. P5‐PL demonstrates excellent CO 2 /N 2 separation capabilities, enabling the fabrication of mixed matrix membrane with superior CO 2 /N 2 selectivity. This strategy can be extended to the fabrication of additional Type II PLs, showing its universality. This synergistic design concept integrating supramolecular chemistry with PLs not only overcomes traditional tedious covalent modification but also enables high compatibility between apolar cage solutes and polar solvents, affording PLs with high porosity, low volatility and viscosity, and programmable tunability.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.004 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it