Anion and Cation Effects on Anion-Templated Assembly\nof Tetrahydroxytriptycene
Bibliographic record
Abstract
A tetrahydroxytriptycene ligand <b>1</b> assembles through\nO–H···anion hydrogen bonds into a range of different\nstructures. With tetrabutylammonium bromide, <b>1</b> forms\na stable nanotube structure that is supported by O–H···anion\nhydrogen bonds, but its space is occupied by the large cation. In\nan effort to produce the nanotubes with different cations and anions, <b>1</b> was crystallized with different salts. The reaction of <b>1</b> with tetraethylammonium bromide gives a 2D net structure,\nwhile <b>1</b> and tetrapropylammonium bromide give a discrete\n1:2 complex. Attempting to co-crystallize <b>1</b> and tetramethylammonium\nbromide gave crystals of an oxidized quinone form of the ligand. When <b>1</b> was crystallized with tetrabutylammonium terephthalate,\ntwo different one-dimensional anion coordination polymers were obtained,\ndepending on the crystallization solvent: acetonitrile gave a zigzag\npolymer, while methanol gave a linear structure. In both cases, the\ntetrabutylammonium cations fill the gaps between the 1D polymers,\ngiving a layered 2D morphology. The wide range of architectures prepared\nfrom a relatively simple ligand illustrates the potential utility\nof O–H···anion interactions for constructing\nsolid-state materials.
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How this classification was reachedexpand
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 | 0.001 | 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) | 0.011 | 0.001 |
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 itClassification
machine, unvalidatedMachine predicted; both teacher heads agree on what is shown here.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".