{"id":"https://openalex.org/A5067764046","orcid":"https://orcid.org/0000-0003-0443-583X","observed_orcids":["https://orcid.org/0000-0003-0443-583X"],"display_name":"Lothar Hennig","raw_author_names":["Hennig, Lothar","Hennig, Lothar 1934-2021","Hennig, Lothar 1953-2020","L Hennig","L. HENNIG","L. Hennig","Lothar Hennig"],"full_name":"Hennig, Lothar","works_count":269,"cited_by_count":2813,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":26,"i10_index":107},"ids":{"openalex":"https://openalex.org/A5067764046","orcid":"https://orcid.org/0000-0003-0443-583X","observed_orcids":["https://orcid.org/0000-0003-0443-583X"]},"affiliations":[{"institution":{"id":"https://openalex.org/I102197404","ror":"https://ror.org/028rypz17","display_name":"Universit\u00e9 Paris-Sud","country_code":"FR","type":"education","lineage":["https://openalex.org/I102197404","https://openalex.org/I277688954"]},"years":[1999,1997,1995]},{"institution":{"id":"https://openalex.org/I135140700","ror":"https://ror.org/041nas322","display_name":"University of Bonn","country_code":"DE","type":"education","lineage":["https://openalex.org/I135140700"]},"years":[2006]},{"institution":{"id":"https://openalex.org/I172901346","ror":"https://ror.org/023znxa73","display_name":"St Petersburg University","country_code":"RU","type":"education","lineage":["https://openalex.org/I172901346"]},"years":[2015,2009,2007,2006,2005]},{"institution":{"id":"https://openalex.org/I192513696","ror":"https://ror.org/006vs7897","display_name":"National University of San Marcos","country_code":"PE","type":"education","lineage":["https://openalex.org/I192513696"]},"years":[2005]},{"institution":{"id":"https://openalex.org/I4210149070","ror":"https://ror.org/03pqf0084","display_name":"International University Institute (IHI) Zittau","country_code":"DE","type":"education","lineage":["https://openalex.org/I4210149070","https://openalex.org/I78650965"]},"years":[2011]},{"institution":{"id":"https://openalex.org/I83332908","ror":"https://ror.org/03g41pw14","display_name":"University of Blida","country_code":"DZ","type":"education","lineage":["https://openalex.org/I83332908"]},"years":[2013]},{"institution":{"id":"https://openalex.org/I904495901","ror":"https://ror.org/04tsk2644","display_name":"Ruhr University Bochum","country_code":"DE","type":"education","lineage":["https://openalex.org/I904495901"]},"years":[1999,1998,1997,1996,1995]},{"institution":{"id":"https://openalex.org/I926574661","ror":"https://ror.org/03s7gtk40","display_name":"Leipzig University","country_code":"DE","type":"education","lineage":["https://openalex.org/I926574661"]},"years":[2022,2019,2018,2017,2016,2015,2014,2013,2012,2011,2010,2009,2008,2007,2006,2005,2004,2003,2002,2001,2000,1999,1998,1997,1996,1995,1994,1993,1992,1991,1990,1989,1988,1987,1986,1985,1983,1979]}],"last_known_institutions":[{"id":"https://openalex.org/I926574661","ror":"https://ror.org/03s7gtk40","display_name":"Leipzig University","country_code":"DE","type":"education","lineage":["https://openalex.org/I926574661"]}],"topics":[{"id":"https://openalex.org/T13859","display_name":"Organic Chemistry Synthesis Methods","count":64,"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/T10835","display_name":"Carbohydrate Chemistry and Synthesis","count":42,"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/T10947","display_name":"Fluorine in Organic Chemistry","count":40,"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/T10911","display_name":"Chemical Synthesis and Analysis","count":33,"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/T10464","display_name":"Crystal structures of chemical compounds","count":31,"subfield":{"id":"https://openalex.org/subfields/1604","display_name":"Inorganic Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T10947","display_name":"Fluorine in Organic Chemistry","value":0.0003111,"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/T13876","display_name":"Chemical synthesis and pharmacological studies","value":0.0001951,"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/T11611","display_name":"Cyclopropane Reaction Mechanisms","value":0.0001838,"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/T13792","display_name":"Morinda citrifolia extract uses","value":0.0001699,"subfield":{"id":"https://openalex.org/subfields/2707","display_name":"Complementary and alternative medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10835","display_name":"Carbohydrate Chemistry and Synthesis","value":0.0001683,"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"}}],"x_concepts":[{"id":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.9939711093902588},{"id":"71240020","wikidata":"https://www.wikidata.org/wiki/Q186011","display_name":"Stereochemistry","score":0.7598758935928345},{"id":"55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","score":0.7272999882698059},{"id":"21951064","wikidata":"https://www.wikidata.org/wiki/Q899212","display_name":"Combinatorial chemistry","score":0.5968949198722839},{"id":"178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","score":0.5649631023406982}],"counts_by_year":[{"year":1979,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1980,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1983,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1985,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1986,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1987,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1988,"works_count":6,"oa_works_count":0,"cited_by_count":0},{"year":1989,"works_count":8,"oa_works_count":0,"cited_by_count":0},{"year":1990,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1991,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1992,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1993,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1994,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1995,"works_count":5,"oa_works_count":1,"cited_by_count":0},{"year":1996,"works_count":6,"oa_works_count":0,"cited_by_count":0},{"year":1997,"works_count":12,"oa_works_count":0,"cited_by_count":0},{"year":1998,"works_count":15,"oa_works_count":1,"cited_by_count":0},{"year":1999,"works_count":12,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":14,"oa_works_count":0,"cited_by_count":0},{"year":2001,"works_count":15,"oa_works_count":0,"cited_by_count":0},{"year":2002,"works_count":17,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":14,"oa_works_count":0,"cited_by_count":0},{"year":2004,"works_count":13,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":14,"oa_works_count":4,"cited_by_count":0},{"year":2006,"works_count":11,"oa_works_count":2,"cited_by_count":0},{"year":2007,"works_count":13,"oa_works_count":1,"cited_by_count":0},{"year":2008,"works_count":5,"oa_works_count":0,"cited_by_count":0},{"year":2009,"works_count":8,"oa_works_count":1,"cited_by_count":0},{"year":2010,"works_count":4,"oa_works_count":2,"cited_by_count":0},{"year":2011,"works_count":5,"oa_works_count":1,"cited_by_count":0},{"year":2012,"works_count":7,"oa_works_count":1,"cited_by_count":125},{"year":2013,"works_count":7,"oa_works_count":3,"cited_by_count":126},{"year":2014,"works_count":5,"oa_works_count":3,"cited_by_count":121},{"year":2015,"works_count":12,"oa_works_count":6,"cited_by_count":113},{"year":2016,"works_count":7,"oa_works_count":5,"cited_by_count":105},{"year":2017,"works_count":5,"oa_works_count":4,"cited_by_count":86},{"year":2018,"works_count":6,"oa_works_count":4,"cited_by_count":104},{"year":2019,"works_count":1,"oa_works_count":1,"cited_by_count":109},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":110},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":114},{"year":2022,"works_count":1,"oa_works_count":1,"cited_by_count":115},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":94},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":60},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":63},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":55}],"display_name_alternatives":["Hennig, Lothar","Hennig, Lothar 1934-2021","Hennig, Lothar 1953-2020","L Hennig","L. HENNIG","L. Hennig","Lothar Hennig"],"block_key":"l hennig","works_api_url":"https://api.openalex.org/works?filter=author.id:A5067764046","updated_date":"2026-11-07T12:08:38","created_date":"2016-06-24T00:00:00"}