{"id":"W2066325521","doi":"10.1021/ja048861l","title":"Catalytic Oligomerization of Ethylene to Higher Linear α-Olefins Promoted by the Cationic Group 4 [(η<sup>5</sup>-Cp-(CMe<sub>2</sub>-bridge)-Ph)M<sup>II</sup>(ethylene)<sub>2</sub>]<sup>+</sup>(M = Ti, Zr, Hf) Active Catalysts:  A Density Functional Investigation of the Influence of the Metal on the Catalytic Activity and Selectivity","year":2004,"lang":"en","type":"article","venue":"Journal of the American Chemical Society","topic":"Organometallic Complex Synthesis and Catalysis","field":"Chemistry","cited_by":149,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Calgary","funders":"Natural Sciences and Engineering Research Council of Canada","keywords":"Metallacycle; Ethylene; Cationic polymerization; Chemistry; Catalysis; Migratory insertion; Polymer chemistry; Metallocene; Crystallography; Stereochemistry; Polymerization; Photochemistry; Medicinal chemistry; Polymer; Organic chemistry; Physics; X-ray crystallography","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":["metaepi_narrow"],"consensus_categories":[],"category_scores_codex":[0.001133684,0.0006423476,0.001141713,0.00007985889,0.0007545712,0.00006074355,0.001494316,0.0002612355,0.0000202062],"category_scores_gemma":[0.001190699,0.0003553325,0.001165647,0.0024424,0.002328483,0.0003872091,0.0007801066,0.001460826,0.000003283836],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00103441,"about_ca_system_score_gemma":0.000706604,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0008453873,"about_ca_topic_score_gemma":0.00003962738,"domain_scores_codex":[0.9954474,0.0004321937,0.001205242,0.0006995678,0.001658612,0.0005570083],"domain_scores_gemma":[0.9938361,0.001023059,0.002727143,0.001458033,0.0007205607,0.0002350803],"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":[0.0002264695,0.0005245123,0.00145715,0.0001183373,0.001079618,4.204104e-7,0.003246499,0.01047969,0.9809887,0.00003338152,0.0001773138,0.001667937],"study_design_scores_gemma":[0.0006715507,0.0001316259,0.0499145,0.0002148082,0.0009657978,0.00005408585,0.0007568073,0.00153261,0.9450478,0.0003159683,0.0000415421,0.0003529193],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9936987,0.00009181791,0.0001189061,0.00519103,0.00004184811,0.0005385873,0.00026587,0.00002632828,0.00002695163],"genre_scores_gemma":[0.9988296,0.00009278869,0.00005939449,0.0006193846,0.0002129753,0.00004718169,0.00003803522,0.00007158718,0.00002904421],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.04845735,"threshold_uncertainty_score":0.9998899,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01085327914812334,"score_gpt":0.210475770060122,"score_spread":0.1996224909119987,"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."}}