{"doi":"10.1071/ch9690279","title":"Molecular orbital, increased valence, valence bond and non-pairing spatial orbital formulae for three-centre bonding","abstract":"<jats:p>The simple valence-bond and molecular orbital formulae for three-centre bonding involving four electrons and three atoms Y, A, and B are</jats:p>\n                  <jats:p>Y 4-B - Y-A 'P, and Y---A---B</jats:p>\n                  <jats:p>Increased-valence formulae that have been developed recently are</jats:p>\n                  <jats:p>Y-A . B and Y . A-B</jats:p>\n                  <jats:p>If Y and B are the same type of atom, and bond-orbitals are used as wave functions for Y-A and A-B bonds, then the near-equivalence of the molecular orbital and increased-valence wave functions is demonstrated.</jats:p>\n                  <jats:p>Bond-orders (or numbers) for these and Linnett's5s6 non-pairing spatial orbital formula</jats:p>\n                  <jats:p>Y . A . B</jats:p>\n                  <jats:p>are calculated.</jats:p>","journal":"Australian Journal of Chemistry","year":1969,"id":18509,"datarank":0.8344765586018612,"base_score":3.6375861597263857,"endowment":3.6375861597263857,"self_citation_contribution":0.5456379239589579,"citation_network_contribution":0.2888386346429032,"self_endowment_contribution":0.5456379239589579,"citer_contribution":0.2888386346429032,"corpus_percentile":null,"corpus_rank":null,"citation_count":37,"citer_count":6,"citers_with_citation_signal":5,"citers_with_endowment":5,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":128409,"name":"RD Harcourt","orcid":null,"position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"base_score":3.6375861597263857,"endowment":3.6375861597263857,"datacite_reuse_total":0,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"21071399","pmcid":null,"openalex_id":"https://openalex.org/W2044037077","authors":[],"funders":[],"total_grants":0,"fwci":4.6242,"citation_percentile":0.96607054,"influential_citations":0,"citation_trend":[{"year":2012,"count":1},{"year":2015,"count":3}],"oa_status":"closed","license":"https://doi.org/10.1071/journalslicense","oa_locations":[{"url":"https://connectsci.au/ch/article-pdf/22/2/279/43208/ch9690279.pdf","host_type":"publisher"},{"url":"https://doi.org/10.1071/ch9690279","host_type":"journal"}],"fields_of_study":["Inorganic and Organometallic Chemistry","Chemical Thermodynamics and Molecular Structure","X-ray Diffraction in Crystallography","Chemistry"],"mesh_terms":[],"keywords":["Valence bond theory","Non-bonding orbital","Chemistry","Generalized valence bond","Modern valence bond theory","Orbital hybridisation","Molecular orbital","Pi bond","Molecular orbital diagram","Orbital overlap","Atomic orbital","Valence (chemistry)","Three-center two-electron bond","Valence electron","Molecular orbital theory","Atomic physics","Molecular physics","Bond order","Crystallography","Electron","Physics","Molecule","Bond length","Crystal structure","Quantum mechanics"],"sdg_mappings":[],"linked_datasets":[],"clinical_trials":[],"software_tools":[],"database_accessions":[],"source":"live","citation_network_status":"fetched"},"created_at":"2026-06-03T22:23:00.711976Z","pmid":null,"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":[]}