{"doi":"10.1063/1.446128","title":"Hindered rotational energy levels of a tetrahedron in a tetragonal crystalline field","abstract":"<jats:p>The hindered rotational energy levels of a tetrahedron in a tetragonal crystalline field have been computed. The symmetry group of the Hamiltonian is T̄×D2, where T̄ is the tetrahedral group of rotations about body-fixed axes and D2 represents the tetragonal group of rotations about space-fixed axes. The parameters in the potential function are determined for the tetragonal phases of NH4Br and NH4I assuming an electrostatic model.</jats:p>","journal":"The Journal of Chemical Physics","year":1983,"id":17812,"datarank":0.6228831509348073,"base_score":2.4849066497880004,"endowment":2.4849066497880004,"self_citation_contribution":0.37273599746820013,"citation_network_contribution":0.25014715346660715,"self_endowment_contribution":0.37273599746820013,"citer_contribution":0.25014715346660715,"corpus_percentile":null,"corpus_rank":null,"citation_count":11,"citer_count":4,"citers_with_citation_signal":3,"citers_with_endowment":3,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":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":123885,"name":"David Smith","orcid":null,"position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"base_score":2.4849066497880004,"endowment":2.4849066497880004,"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/W4239229723","authors":[],"funders":[],"total_grants":0,"fwci":0.491,"citation_percentile":0.67362207,"influential_citations":0,"citation_trend":[],"oa_status":"closed","license":null,"oa_locations":[{"url":"https://pubs.aip.org/aip/jcp/article-pdf/79/6/2989/18944696/2989_1_online.pdf","host_type":"publisher"},{"url":"https://doi.org/10.1063/1.446128","host_type":"journal"}],"fields_of_study":["Solid-state spectroscopy and crystallography","Molecular spectroscopy and chirality","Origins and Evolution of Life"],"mesh_terms":[],"keywords":["Tetragonal crystal system","Tetrahedron","Hamiltonian (control theory)","Group (periodic table)","Condensed matter physics","Tetrahedral symmetry","Chemistry","Crystallography","Crystal structure","Physics","Rotational symmetry","Geometry","Mathematics","Quantum mechanics"],"sdg_mappings":[{"sdg_number":0,"sdg_label":"Affordable and clean energy"}],"linked_datasets":[],"clinical_trials":[],"software_tools":[],"database_accessions":[],"source":"live","citation_network_status":"fetched"},"created_at":"2026-06-03T01:23:42.841121Z","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":[]}