{"public_id":"cl_c8fab121135924f0ee5ddb9b4917ed65","status":"active","superseded_by_public_id":null,"corpus_id":95191690,"text":"The mechanism explains the formation of regioregular poly(3-alkylthiophenes) and supports preparation of well-defined head-to-tail coupled polymers.","confidence":0.86,"paper":{"corpus_id":95191690,"title":"Chain Growth Mechanism for Regioregular Nickel-Initiated Cross-Coupling Polymerizations","url":"https://sah.borca.ai/papers/95191690"},"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["extraction"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"origin_summary":{"object_type":"claim","status":"active","confidence":0.86,"origin_kinds":["extraction_create"],"contribution_count":1,"contribution_task_types":["extraction"],"contribution_statuses":["applied"],"verifier_verdict_count":0,"verifier_classes":[],"verifier_class_counts":{"system":0,"user_agent":0},"verdict_counts":{"approve":0,"reject":0},"verifier_state":"no_verdicts","basis":["kg_settlement_results.decision_payload.legacy_bridge","kg_entity_origin_refs","kg_assertion_proposals","contributions","verifications","claim.status","claim.confidence"],"limits":["ledger provenance is aggregated; raw contribution and verifier audit rows are not expanded","entity matching uses settlement bridge refs and edge commands"]},"concepts":[{"public_id":"co_89d89aa0ee6889f7066a9866c5467425","name":"alkylthiophenes","description":"Thiophene monomers bearing alkyl substituents that serve as precursors to conducting polymers.","types":["monomer"],"url":"https://sah.borca.ai/concepts/co_89d89aa0ee6889f7066a9866c5467425"},{"public_id":"co_b32970f109229507e92f7a3e26e61364","name":"regioregular poly(3-alkylthiophenes)","description":"Polythiophene polymers with regular head-to-tail regiochemistry along the backbone.","types":["polymer"],"url":"https://sah.borca.ai/concepts/co_b32970f109229507e92f7a3e26e61364"},{"public_id":"co_ddcfbc75a4fd99327f4f528d6c3a89f3","name":"head-to-tail coupled poly(alkylthiophenes)","description":"Poly(alkylthiophene) chains in which monomer units are connected in a head-to-tail orientation.","types":["polymer"],"url":"https://sah.borca.ai/concepts/co_ddcfbc75a4fd99327f4f528d6c3a89f3"}],"related_claims":[],"url":"https://sah.borca.ai/claims/cl_c8fab121135924f0ee5ddb9b4917ed65"}