{"id":"W2074665701","doi":"10.1021/ja0174175","title":"Tuning and Dissecting Electronic and Steric Effects in Ammonium Receptors:  Nonactin vs Artificial Receptors","year":2002,"lang":"en","type":"article","venue":"Journal of the American Chemical Society","topic":"Analytical Chemistry and Sensors","field":"Chemical Engineering","cited_by":54,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Toronto","funders":"","keywords":"Chemistry; Ammonium; Receptor; Protonation; Ion; Detection limit; Steric effects; Selectivity; Molecule; Ion exchange; Inorganic chemistry; Stereochemistry; Chromatography; Organic chemistry; Biochemistry; Catalysis","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":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0002666909,0.0002307416,0.0002390952,0.00005333984,0.0000921052,0.0003208539,0.0004651115,0.0004319408,0.0004407726],"category_scores_gemma":[0.0005429677,0.000112602,0.0001169358,0.0000566933,0.0003182653,0.0002623949,0.0002320753,0.0001754325,0.0001814285],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002080989,"about_ca_system_score_gemma":0.0001152544,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0002136554,"about_ca_topic_score_gemma":0.0004844712,"domain_scores_codex":[0.999757,0.00005550238,0.00001427181,0.0000340463,0.00009819506,0.0000409598],"domain_scores_gemma":[0.9997664,0.0001094921,0.0000466975,0.00001146158,0.00003727426,0.00002859318],"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":[0.00005587028,0.00000692108,0.00007620927,0.00003561031,0.000001768148,0.00003337644,0.000009407381,0.00009633039,0.9986951,0.00008034019,0.00001230651,0.0008967452],"study_design_scores_gemma":[0.00001917295,0.0001690475,0.0008231305,0.000001854594,0.000008046522,0.0001543354,0.00002194662,0.002795036,0.9951243,0.00004854151,0.0008291518,0.000005405947],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9931117,0.0009144821,0.004774599,0.00008324039,0.00001898172,0.00001564664,0.00001943088,0.00004758943,0.001014366],"genre_scores_gemma":[0.992245,0.0006139149,0.005825932,0.00008994962,0.00001078936,0.00002219799,0.00004268263,0.00001600268,0.001133531],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.0004651115,"threshold_uncertainty_score":0.001509845,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.008205454028570341,"score_gpt":0.2213030205530182,"score_spread":0.2130975665244479,"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."}}