{"id":"https://openalex.org/W1985184294","doi":"https://doi.org/10.1002/hlca.19750580609","title":"13C\u2010NMR. Spectroscopy of Naturally Occurring Substances. XXXV. Labdanic diterpenes","display_name":"13C\u2010NMR. Spectroscopy of Naturally Occurring Substances. XXXV. Labdanic diterpenes","publication_year":1975,"publication_date":"1975-07-16","ids":{"openalex":"https://openalex.org/W1985184294","doi":"https://doi.org/10.1002/hlca.19750580609","mag":"1985184294"},"language":"en","primary_location":{"id":"doi:10.1002/hlca.19750580609","doi":"https://doi.org/10.1002/hlca.19750580609","is_oa":false,"landing_page_url":"https://doi.org/10.1002/hlca.19750580609","pdf_url":null,"source":{"id":"https://openalex.org/S181847678","display_name":"Helvetica Chimica Acta","issn_l":"0018-019X","issn":["0018-019X","1522-2675"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","norway-1","poland-40","russia-white-list-2"],"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Helvetica Chimica Acta","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5050508032","display_name":"Brian L. Buckwalter","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210119109","display_name":"Indiana University Bloomington","ror":"https://ror.org/02k40bc56","country_code":"US","type":"education","lineage":["https://openalex.org/I4210119109","https://openalex.org/I592451"]},{"id":"https://openalex.org/I592451","display_name":"Indiana University","ror":"https://ror.org/01kg8sb98","country_code":"US","type":"education","lineage":["https://openalex.org/I592451"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Brian L. Buckwalter","raw_affiliation_strings":["Department of Chemistry, Indiana University, Bloomington, Indiana 47401, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, Indiana University, Bloomington, Indiana 47401, USA","institution_ids":["https://openalex.org/I4210119109","https://openalex.org/I592451"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5006651082","display_name":"Ivor R. Burfitt","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210119109","display_name":"Indiana University Bloomington","ror":"https://ror.org/02k40bc56","country_code":"US","type":"education","lineage":["https://openalex.org/I4210119109","https://openalex.org/I592451"]},{"id":"https://openalex.org/I592451","display_name":"Indiana University","ror":"https://ror.org/01kg8sb98","country_code":"US","type":"education","lineage":["https://openalex.org/I592451"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Ivor R. Burfitt","raw_affiliation_strings":["Department of Chemistry, Indiana University, Bloomington, Indiana 47401, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, Indiana University, Bloomington, Indiana 47401, USA","institution_ids":["https://openalex.org/I4210119109","https://openalex.org/I592451"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5113541538","display_name":"Arthur A. Nagel","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210119109","display_name":"Indiana University Bloomington","ror":"https://ror.org/02k40bc56","country_code":"US","type":"education","lineage":["https://openalex.org/I4210119109","https://openalex.org/I592451"]},{"id":"https://openalex.org/I592451","display_name":"Indiana University","ror":"https://ror.org/01kg8sb98","country_code":"US","type":"education","lineage":["https://openalex.org/I592451"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Arthur A. Nagel","raw_affiliation_strings":["Department of Chemistry, Indiana University, Bloomington, Indiana 47401, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, Indiana University, Bloomington, Indiana 47401, USA","institution_ids":["https://openalex.org/I4210119109","https://openalex.org/I592451"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043820823","display_name":"Ernest Wenkert","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210119109","display_name":"Indiana University Bloomington","ror":"https://ror.org/02k40bc56","country_code":"US","type":"education","lineage":["https://openalex.org/I4210119109","https://openalex.org/I592451"]},{"id":"https://openalex.org/I592451","display_name":"Indiana University","ror":"https://ror.org/01kg8sb98","country_code":"US","type":"education","lineage":["https://openalex.org/I592451"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Ernest Wenkert","raw_affiliation_strings":["Department of Chemistry, Indiana University, Bloomington, Indiana 47401, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, Indiana University, Bloomington, Indiana 47401, USA","institution_ids":["https://openalex.org/I4210119109","https://openalex.org/I592451"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5009461546","display_name":"Ferdinand N\u00e4f","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2801043613","display_name":"Firmenich (Switzerland)","ror":"https://ror.org/04d9v0a44","country_code":"CH","type":"company","lineage":["https://openalex.org/I2801043613","https://openalex.org/I4405267139"]}],"countries":["CH"],"is_corresponding":false,"raw_author_name":"Ferdinand N\u00e4f","raw_affiliation_strings":["Firmenich SA, Research Laboratory, 1211 Geneva 8"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Firmenich SA, Research Laboratory, 1211 Geneva 8","institution_ids":["https://openalex.org/I2801043613"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":4030,"currency":"USD","value_usd":4030},"apc_paid":null,"fwci":8.3659,"has_fulltext":false,"cited_by_count":114,"citation_normalized_percentile":{"value":0.98708967,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":96},"biblio":{"volume":"58","issue":"6","first_page":"1567","last_page":"1573"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12530","display_name":"Bioactive Natural Diterpenoids Research","score":0.8378999829292297,"subfield":{"id":"https://openalex.org/subfields/1605","display_name":"Organic Chemistry"},"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/T12530","display_name":"Bioactive Natural Diterpenoids Research","score":0.8378999829292297,"subfield":{"id":"https://openalex.org/subfields/1605","display_name":"Organic Chemistry"},"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/T12748","display_name":"Molecular spectroscopy and chirality","score":0.07479999959468842,"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/T11809","display_name":"Advanced NMR Techniques and Applications","score":0.05550000071525574,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/labdane-diterpenes","display_name":"labdane diterpenes","score":0.9950000047683716},{"id":"https://openalex.org/keywords/13c-nmr-spectroscopy","display_name":"13C NMR","score":0.7630000114440918},{"id":"https://openalex.org/keywords/natural-products","display_name":"natural products","score":0.7319999933242798},{"id":"https://openalex.org/keywords/diterpenes","display_name":"diterpenoids","score":0.7379999756813049}],"concepts":[{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.9555473923683167},{"id":"https://openalex.org/C2776710815","wikidata":"https://www.wikidata.org/wiki/Q59447","display_name":"Diterpene","level":2,"score":0.9208403825759888},{"id":"https://openalex.org/C2778594897","wikidata":"https://www.wikidata.org/wiki/Q8214660","display_name":"Labdane","level":3,"score":0.7566600441932678},{"id":"https://openalex.org/C2778353244","wikidata":"https://www.wikidata.org/wiki/Q415454","display_name":"Decalin","level":3,"score":0.7081347107887268},{"id":"https://openalex.org/C71240020","wikidata":"https://www.wikidata.org/wiki/Q186011","display_name":"Stereochemistry","level":1,"score":0.542634904384613},{"id":"https://openalex.org/C66974803","wikidata":"https://www.wikidata.org/wiki/Q10359898","display_name":"Nuclear magnetic resonance spectroscopy","level":2,"score":0.4672088027000427},{"id":"https://openalex.org/C19549132","wikidata":"https://www.wikidata.org/wiki/Q11141463","display_name":"Two-dimensional nuclear magnetic resonance spectroscopy","level":2,"score":0.4610428512096405},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.27480101585388184},{"id":"https://openalex.org/C161790260","wikidata":"https://www.wikidata.org/wiki/Q82264","display_name":"Catalysis","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1002/hlca.19750580609","doi":"https://doi.org/10.1002/hlca.19750580609","is_oa":false,"landing_page_url":"https://doi.org/10.1002/hlca.19750580609","pdf_url":null,"source":{"id":"https://openalex.org/S181847678","display_name":"Helvetica Chimica Acta","issn_l":"0018-019X","issn":["0018-019X","1522-2675"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","norway-1","poland-40","russia-white-list-2"],"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Helvetica Chimica Acta","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W223949962","https://openalex.org/W1965774522","https://openalex.org/W2021058867","https://openalex.org/W2023937032","https://openalex.org/W2025422075","https://openalex.org/W2060722370","https://openalex.org/W2094583253","https://openalex.org/W2095723368","https://openalex.org/W2322479414","https://openalex.org/W4210739529"],"related_works":["https://openalex.org/W2114347310","https://openalex.org/W1982208290","https://openalex.org/W2949648179","https://openalex.org/W2086437793","https://openalex.org/W2066349233","https://openalex.org/W2088573125","https://openalex.org/W2031423133","https://openalex.org/W4253430984","https://openalex.org/W1988985585","https://openalex.org/W2037029268"],"abstract_inverted_index":{"Abstract":[0],"A":[1],"total":[2],"carbon":[3],"shift":[4,20,27],"analysis":[5],"of":[6,9,14,29],"several":[7],"representatives":[8],"the":[10,25],"labdane":[11],"diterpene":[12],"family":[13],"natural":[15],"products":[16],"is":[17,22],"presented.":[18],"The":[19],"assignment":[21],"based":[23],"on":[24],"prior":[26],"designation":[28],"some":[30],"synthetic":[31],"trans\u2010decalin":[32],"derivatives.":[33]},"counts_by_year":[{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":2}],"updated_date":"2026-10-30T12:39:25.321706","created_date":"2016-06-24T00:00:00"}
