Outputs & Exports
Interpret XTalNet crystal structure prediction and polymorph screening outputs.
Both XTalNet tools return a job with status (submitted | running | completed | failed) and, on completion, CIF structures plus energy or stability data. These let you rank candidate crystal forms, compare polymorphs, and export structures to downstream tools like PyWPEM.
xtalnet_csp_predict outputs
structures_cif: CIF files with the predicted crystal structuresenergy_landscape_json: JSON with{structures: [{energy_kcal, space_group, density, cell_parameters}]}for every candidatesummary_csv: CSV with[structure_id, energy, space_group, a, b, c, alpha, beta, gamma]- Result metrics:
n_structures,n_unique,energy_range,top_space_groups,overall_confidence
xtalnet_polymorph_predict outputs
polymorphs_cif: CIF files for each distinct polymorphstability_ranking_json: JSON with{forms: [{form_id, energy_kcal, stability_rank, is_metastable}], transition_risks: []}pharmaceutical_properties_csv(wheninclude_pharmaceutical_propertiesis enabled): CSV with[form_id, solubility, dissolution_rate, bioavailability_class]
Quick sanity checks
- Confirm
job.status === "completed"before reading artifacts — afailedjob has no CIF output - Check
overall_confidence(CSP) orstability_rank/is_metastable(polymorph) against yourmin_confidence_thresholdbefore trusting a low-ranked candidate - For polymorph screening, cross-check
n_unique/distinct forms againstpolymorph_similarity_threshold— a low threshold can split one real form into several near-duplicate entries
Export for downstream tools
- Feed a predicted
structures_cif/polymorphs_cifentry into PyWPEM'ssimulate_xrdto generate the diffraction pattern that structure would produce, or into OpXRD to search for a matching experimental pattern. - Keep the CIF file alongside its
structure_id/form_idso downstream jobs can be traced back to the candidate that produced them.
Common issues
- Job fails immediately: neither a SMILES string nor PXRD data (with a formula) was provided — see inputs & restraints.
- Too few unique structures: raise
num_candidates, or for polymorph screening, lowerpolymorph_similarity_thresholdto separate near-duplicate forms. - Low-confidence results across the board: lower
min_confidence_thresholdto see more candidates, then triage manually rather than trusting the default cutoff.
Canvas Visualization
When an XtalNet job completes, a result card appears on the canvas.
- Card size: 400x450px
- Border color: Purple (#9C27B0)
- Visualization: 3D crystal viewer with unit cell
Tier 2 Metrics
- Confidence score (%)
- Structures predicted count
- Space group
- Match score (%)
- Polymorph count
- Bioavailability prediction (%)
- Solubility prediction
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