{"id":"https://openalex.org/keywords/normal-coordinate-analysis","display_name":"normal coordinate analysis","description":"A molecular spectroscopy method that uses normal vibrational coordinates to assign and interpret the vibrational frequencies of molecules and crystals.","display_name_alternatives":["normal coordinate vibrational analysis","normal coordinate analyses","NCA"],"ids":{"openalex":"https://openalex.org/keywords/normal-coordinate-analysis","wikidata":null},"primary_topic":{"id":"https://openalex.org/T12967","display_name":"Molecular Spectroscopy and Structure","score":0.3519,"subfield":{"id":"https://openalex.org/subfields/1607","display_name":"Spectroscopy"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T12967","display_name":"Molecular Spectroscopy and Structure","score":0.3519,"subfield":{"id":"https://openalex.org/subfields/1607","display_name":"Spectroscopy"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11177","display_name":"Spectroscopy and Quantum Chemical Studies","score":0.1162,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11324","display_name":"Spectroscopy Techniques in Biomedical and Chemical Research","score":0.0707,"subfield":{"id":"https://openalex.org/subfields/1304","display_name":"Biophysics"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"works_count":4033,"cited_by_count":85554,"works_api_url":"https://api.openalex.org/works?filter=keywords.id:keywords/normal-coordinate-analysis","updated_date":"2026-10-22T04:07:25","created_date":"2026-09-30T00:00:00"}
