{"id":"https://openalex.org/A5014899203","orcid":null,"observed_orcids":[],"display_name":"Harald Christiansen","raw_author_names":["Harald Christiansen"],"full_name":"Harald Christiansen","works_count":32,"cited_by_count":1070,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":17,"i10_index":26},"ids":{"openalex":"https://openalex.org/A5014899203","orcid":null,"observed_orcids":[]},"affiliations":[],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T10464","display_name":"Crystal structures of chemical compounds","count":11,"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"}},{"id":"https://openalex.org/T11746","display_name":"Inorganic and Organometallic Chemistry","count":8,"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"}},{"id":"https://openalex.org/T10798","display_name":"Crystallography and molecular interactions","count":5,"subfield":{"id":"https://openalex.org/subfields/1606","display_name":"Physical and Theoretical 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/T10807","display_name":"Synthesis and characterization of novel inorganic/organometallic compounds","count":3,"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"}},{"id":"https://openalex.org/T10939","display_name":"Crystal Structures and Properties","count":3,"subfield":{"id":"https://openalex.org/subfields/2504","display_name":"Electronic, Optical and Magnetic Materials"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T13489","display_name":"Synthesis of \u03b2-Lactam Compounds","value":3.44e-05,"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/T13013","display_name":"Free Radicals and Antioxidants","value":2.08e-05,"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/T11887","display_name":"Quasicrystal Structures and Properties","value":1.91e-05,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12055","display_name":"Boron Compounds in Chemistry","value":1.89e-05,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"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/T11441","display_name":"Organoboron and organosilicon chemistry","value":1.8e-05,"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":0.9887324571609497},{"id":"115624301","wikidata":"https://www.wikidata.org/wiki/Q895901","display_name":"Crystal structure","score":0.6527929902076721},{"id":"178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","score":0.488359659910202},{"id":"8010536","wikidata":"https://www.wikidata.org/wiki/Q160398","display_name":"Crystallography","score":0.48705795407295227},{"id":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.05506187677383423}],"counts_by_year":[{"year":1968,"works_count":32,"oa_works_count":31,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":11},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":14},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":17},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":12},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":21},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":17},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":10},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":6},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":9},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":14},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":18},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":14},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":11},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":8},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":1}],"display_name_alternatives":["Harald Christiansen"],"block_key":"h christiansen","works_api_url":"https://api.openalex.org/works?filter=author.id:A5014899203","updated_date":"2026-11-07T12:08:38","created_date":"2016-06-24T00:00:00"}
