{"doi":"10.1107/s2056989021011592","title":"Synthesis and crystal structure of racemic (<i>R</i>*,<i>R</i>*)-2,2′-(1,4-phenylene)bis(3-phenyl-2,3,5,6-tetrahydro-4<i>H</i>-1,3-thiazin-4-one)","abstract":"In the racemic title compound, C 26 H 24 N 2 O 2 S 2 , one of the thiazine rings shows a twisted boat conformation ( Q = 0.743 Å, θ = 92.1°) and the other a half-chair puckering ( Q = 0.669 Å, θ = 54.3°). The terminal phenyl rings are almost parallel to each other [dihedral angle 21.71 (10)°]. Both of these rings are orthogonal to the central phenyl ring, subtending a dihedral angle of about 78° in each case. The extended structure is consolidated by C—H...O and C—H...S hydrogen bonds as well as aromatic ring interactions of parallel-displaced and T-type. The molecule has approximate C 2 local symmetry but this is not carried over to its three-dimensional structure or the intermolecular interactions.","journal":"Acta Crystallographica Section E Crystallographic Communications","year":2021,"id":210392,"datarank":0.0,"base_score":0.0,"endowment":0.0,"self_citation_contribution":0.0,"citation_network_contribution":0.0,"self_endowment_contribution":0.0,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":1,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9418,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2021-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":799375,"name":"Joseph J. Medica","orcid":null,"position":1,"is_corresponding":false},{"id":792004,"name":"Lee J. Silverberg","orcid":"0000-0002-7353-1289","position":2,"is_corresponding":false},{"id":792008,"name":"Hemant P. Yennawar","orcid":"0000-0003-2869-1109","position":0,"is_corresponding":true}],"reference_count":15,"raw_metadata":null,"created_at":"2026-07-18T23:52:12.491146Z","pmid":"34925894","pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}