{"id":"W2064678298","doi":"10.1016/j.carres.2007.09.007","title":"O-2 Substituted pyranosyl oxacarbenium ions are C-2–O-2 2-fold rotors with a strong syn preference","year":2007,"lang":"en","type":"article","venue":"Carbohydrate Research","topic":"Carbohydrate Chemistry and Synthesis","field":"Chemistry","cited_by":18,"is_retracted":false,"has_abstract":false,"ca_institutions":"Institute for Biological Sciences; Steacie Institute for Molecular Sciences","funders":"","keywords":"Chemistry; Natural bond orbital; Stereochemistry; Substituent; Ion; Crystallography; Computational chemistry; Density functional theory; Organic chemistry","routes":{"ca_aff":true,"ca_fund":false,"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":["metaepi_narrow","insufficient_payload"],"consensus_categories":[],"category_scores_codex":[0.001544613,0.0005570079,0.000598342,0.0004070507,0.0006698252,0.0002984114,0.00107512,0.0005496395,0.001111164],"category_scores_gemma":[0.0005242093,0.0004961581,0.000205316,0.00173299,0.0007818954,0.0003188586,0.0002963338,0.001741546,0.0001247854],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0005699371,"about_ca_system_score_gemma":0.000461556,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0003246897,"about_ca_topic_score_gemma":0.0004661953,"domain_scores_codex":[0.9944406,0.0001136355,0.0006333357,0.00116469,0.001644785,0.002003004],"domain_scores_gemma":[0.9957041,0.0008556212,0.0001927264,0.001521161,0.0009063747,0.0008200288],"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":[0.0005854635,0.000225868,0.006724299,0.0003265522,0.0001743304,0.0005615516,0.0002833403,0.00007229024,0.9895012,0.0007157337,0.0002485386,0.0005808694],"study_design_scores_gemma":[0.0008436709,0.00004319983,0.001180217,0.000478948,0.00006741401,0.00003292776,0.002080127,0.0004015664,0.9913517,0.0001370651,0.002695655,0.0006875432],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9412698,0.0003836991,0.0001292969,0.0001988578,0.00009733398,0.0003513629,0.0001010128,0.0003149251,0.05715375],"genre_scores_gemma":[0.9961451,0.00009171526,0.0001083365,0.00001494707,0.0005232384,0.0002131179,0.00009383165,0.0001147722,0.002694885],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.05487539,"threshold_uncertainty_score":0.9998019,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.1140596574812229,"score_gpt":0.3266732668701547,"score_spread":0.2126136093889318,"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."}}