{"id":"https://openalex.org/W2014831212","doi":"https://doi.org/10.1107/s1600536805002874","title":"2-Methyl-7-oxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-3-ium chloride, a product of the thermal decomposition of nimustine hydrochloride (ACNU)","display_name":"2-Methyl-7-oxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-3-ium chloride, a product of the thermal decomposition of nimustine hydrochloride (ACNU)","publication_year":2005,"publication_date":"2005-02-05","ids":{"openalex":"https://openalex.org/W2014831212","doi":"https://doi.org/10.1107/s1600536805002874","mag":"2014831212"},"language":"en","primary_location":{"id":"doi:10.1107/s1600536805002874","doi":"https://doi.org/10.1107/s1600536805002874","is_oa":false,"landing_page_url":"https://doi.org/10.1107/s1600536805002874","pdf_url":null,"source":{"id":"https://openalex.org/S146636433","display_name":"Acta Crystallographica Section E Structure Reports Online","issn_l":"1600-5368","issn":["1600-5368"],"is_oa":false,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj"],"host_organization":"https://openalex.org/P4310320555","host_organization_name":"International Union of Crystallography","host_organization_lineage":["https://openalex.org/P4310320555"],"host_organization_lineage_names":["International Union of Crystallography"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Acta Crystallographica Section E Structure Reports Online","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","doaj"],"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/A5111810856","display_name":"Ilya V. Chernyshev","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I19880235","display_name":"Lomonosov Moscow State University","ror":"https://ror.org/010pmpe69","country_code":"RU","type":"education","lineage":["https://openalex.org/I19880235"]}],"countries":["RU"],"is_corresponding":false,"raw_author_name":"Ilya V. Chernyshev","raw_affiliation_strings":["Department of Chemistry, Moscow State University, 119899 Moscow, Russia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, Moscow State University, 119899 Moscow, Russia","institution_ids":["https://openalex.org/I19880235"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5033864248","display_name":"Anna I. Tursina","orcid":"https://orcid.org/0000-0003-4594-0285","observed_orcids":["https://orcid.org/0000-0003-4594-0285"]},"institutions":[{"id":"https://openalex.org/I19880235","display_name":"Lomonosov Moscow State University","ror":"https://ror.org/010pmpe69","country_code":"RU","type":"education","lineage":["https://openalex.org/I19880235"]}],"countries":["RU"],"is_corresponding":false,"raw_author_name":"Anna I. Tursina","raw_affiliation_strings":["Department of Chemistry, Moscow State University, 119899 Moscow, Russia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, Moscow State University, 119899 Moscow, Russia","institution_ids":["https://openalex.org/I19880235"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I19880235"],"apc_list":{"value":500,"currency":"USD","value_usd":500},"apc_paid":null,"fwci":0.2228,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.48251569,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"61","issue":"3","first_page":"o544","last_page":"o546"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10464","display_name":"Crystal structures of chemical compounds","score":0.9940999746322632,"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"}},"topics":[{"id":"https://openalex.org/T10464","display_name":"Crystal structures of chemical compounds","score":0.9940999746322632,"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","score":0.0026000000070780516,"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/T14099","display_name":"Synthesis and Characterization of Heterocyclic Compounds","score":0.0003000000142492354,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/nimustine-hydrochloride","display_name":"nimustine hydrochloride","score":0.9879999756813049},{"id":"https://openalex.org/keywords/nimustine","display_name":"ACNU","score":0.9139999747276306},{"id":"https://openalex.org/keywords/thermal-decomposition","display_name":"thermal decomposition","score":0.9610000252723694},{"id":"https://openalex.org/keywords/hydrogen-bonding","display_name":"hydrogen bonding","score":0.8669999837875366},{"id":"https://openalex.org/keywords/n-ho-hydrogen-bonds","display_name":"N-H\u22efO hydrogen bonds","score":0.8370000123977661},{"id":"https://openalex.org/keywords/n-hcl-hydrogen-bonds","display_name":"N-H\u22efCl hydrogen bonds","score":0.9319999814033508},{"id":"https://openalex.org/keywords/c-hcl-hydrogen-bonds","display_name":"C-H\u22efCl hydrogen bonds","score":0.9829999804496765},{"id":"https://openalex.org/keywords/two-dimensional-network","display_name":"two-dimensional network","score":0.6909999847412109},{"id":"https://openalex.org/keywords/inversion-dimers","display_name":"inversion dimers","score":0.7170000076293945}],"concepts":[{"id":"https://openalex.org/C160434732","wikidata":"https://www.wikidata.org/wiki/Q2611095","display_name":"Thermal decomposition","level":2,"score":0.7769683599472046},{"id":"https://openalex.org/C112887158","wikidata":"https://www.wikidata.org/wiki/Q169324","display_name":"Hydrogen bond","level":3,"score":0.7056133151054382},{"id":"https://openalex.org/C2781087020","wikidata":"https://www.wikidata.org/wiki/Q211086","display_name":"Hydrogen chloride","level":2,"score":0.7032792568206787},{"id":"https://openalex.org/C2778695967","wikidata":"https://www.wikidata.org/wiki/Q44791900","display_name":"Chloride","level":2,"score":0.6635535359382629},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.6003237962722778},{"id":"https://openalex.org/C124681953","wikidata":"https://www.wikidata.org/wiki/Q339062","display_name":"Decomposition","level":2,"score":0.5568957328796387},{"id":"https://openalex.org/C166950319","wikidata":"https://www.wikidata.org/wiki/Q245031","display_name":"Intermolecular force","level":3,"score":0.5511913299560547},{"id":"https://openalex.org/C115624301","wikidata":"https://www.wikidata.org/wiki/Q895901","display_name":"Crystal structure","level":2,"score":0.5066989064216614},{"id":"https://openalex.org/C155647269","wikidata":"https://www.wikidata.org/wiki/Q243455","display_name":"Medicinal chemistry","level":1,"score":0.4983057975769043},{"id":"https://openalex.org/C2776460385","wikidata":"https://www.wikidata.org/wiki/Q420060","display_name":"Hydrochloride","level":2,"score":0.4969234764575958},{"id":"https://openalex.org/C179104552","wikidata":"https://www.wikidata.org/wiki/Q11165","display_name":"Inorganic chemistry","level":1,"score":0.34732913970947266},{"id":"https://openalex.org/C8010536","wikidata":"https://www.wikidata.org/wiki/Q160398","display_name":"Crystallography","level":1,"score":0.282778799533844},{"id":"https://openalex.org/C32909587","wikidata":"https://www.wikidata.org/wiki/Q11369","display_name":"Molecule","level":2,"score":0.19716110825538635},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.15329983830451965}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1107/s1600536805002874","doi":"https://doi.org/10.1107/s1600536805002874","is_oa":false,"landing_page_url":"https://doi.org/10.1107/s1600536805002874","pdf_url":null,"source":{"id":"https://openalex.org/S146636433","display_name":"Acta Crystallographica Section E Structure Reports Online","issn_l":"1600-5368","issn":["1600-5368"],"is_oa":false,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj"],"host_organization":"https://openalex.org/P4310320555","host_organization_name":"International Union of Crystallography","host_organization_lineage":["https://openalex.org/P4310320555"],"host_organization_lineage_names":["International Union of Crystallography"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Acta Crystallographica Section E Structure Reports Online","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":5,"referenced_works":["https://openalex.org/W306686923","https://openalex.org/W1523171941","https://openalex.org/W2059020082","https://openalex.org/W2063334178","https://openalex.org/W2316147113"],"related_works":["https://openalex.org/W2019412679","https://openalex.org/W2097893895","https://openalex.org/W2094940147","https://openalex.org/W3018955351","https://openalex.org/W2331996188","https://openalex.org/W2338198659","https://openalex.org/W2061424491","https://openalex.org/W2229046565","https://openalex.org/W2108104885","https://openalex.org/W2062502276"],"abstract_inverted_index":{"The":[0],"title":[1],"compound,":[2],"C7H9N4O+\u00b7Cl\u2212,":[3],"was":[4],"obtained":[5],"as":[6],"a":[7],"product":[8],"of":[9,13],"the":[10,18,26],"thermal":[11],"decomposition":[12],"nimustine":[14],"hydro\u00adchloride":[15],"(ACNU).":[16],"In":[17],"crystal":[19],"structure,":[20],"intermolecular":[21],"N\u2014H\u22efO":[22],"hydrogen":[23,39],"bonds":[24],"link":[25],"cations":[27],"into":[28],"centrosymmetric":[29],"dimers,":[30],"which":[31],"are":[32],"further":[33],"connected":[34],"by":[35],"N\u2014H\u22efCl":[36],"and":[37],"C\u2014H\u22efCl":[38],"bonding":[40],"to":[41],"form":[42],"two-dimensional":[43],"networks.":[44]},"counts_by_year":[],"updated_date":"2026-11-13T13:42:25.865203","created_date":"2016-06-24T00:00:00"}
