{"id":"W4411048254","doi":"10.1038/s42004-025-01566-3","title":"Sodium’s elusive tI50 phase predicted to be a body-centered tetragonal electride","year":2025,"lang":"en","type":"article","venue":"Communications Chemistry","topic":"Ammonia Synthesis and Nitrogen Reduction","field":"Chemical Engineering","cited_by":1,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Saskatchewan","funders":"Natural Sciences and Engineering Research Council of Canada; Government of Canada","keywords":"Tetragonal crystal system; Phase (matter); Materials science; Crystallography; Chemistry; Organic chemistry","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.00008662174,0.0001735696,0.0001937376,0.00006171691,0.0002039955,0.00003372816,0.0009378345,0.0001350406,0.0001963427],"category_scores_gemma":[0.0003642454,0.0001953198,0.000108579,0.0004421226,0.00007933637,0.00006051525,0.0003299795,0.000365496,0.00002152416],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002108758,"about_ca_system_score_gemma":0.0001169162,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00001718547,"about_ca_topic_score_gemma":0.00000300062,"domain_scores_codex":[0.9990035,0.00002464882,0.0003282459,0.0002492214,0.0001325856,0.0002618508],"domain_scores_gemma":[0.998031,0.0001443393,0.00006569188,0.001494997,0.0001353881,0.0001285823],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.00005163826,0.0003536708,0.00003993508,0.00004060147,0.00009848535,7.124956e-7,0.00008994638,0.00001476516,0.9906361,0.0005150452,0.005426241,0.002732867],"study_design_scores_gemma":[0.0006370054,0.000009340417,0.00004619496,0.00007859567,0.00005877171,0.000007642746,0.0001399304,0.007955803,0.9268431,0.00006529908,0.06398819,0.0001701213],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9250839,0.002245843,0.01088988,0.01437333,0.0001491166,0.000569828,0.0003090534,0.0007540569,0.045625],"genre_scores_gemma":[0.9925452,0.00008689355,0.002962798,0.0002433354,0.00007279214,0.0001870223,0.0003190379,0.00002387785,0.003559009],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.06746134,"threshold_uncertainty_score":0.7964909,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02152298682718804,"score_gpt":0.2994635321526066,"score_spread":0.2779405453254186,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}