{"id":"https://openalex.org/W2024938801","doi":"https://doi.org/10.1080/00958970500156761","title":"Spectroscopic, thermal and X-ray crystal structure studies of some bis-(pyrazine-2-carboxylato) nickel(II) complexes","display_name":"Spectroscopic, thermal and X-ray crystal structure studies of some bis-(pyrazine-2-carboxylato) nickel(II) complexes","publication_year":2005,"publication_date":"2005-10-12","ids":{"openalex":"https://openalex.org/W2024938801","doi":"https://doi.org/10.1080/00958970500156761","mag":"2024938801"},"language":"en","primary_location":{"id":"doi:10.1080/00958970500156761","doi":"https://doi.org/10.1080/00958970500156761","is_oa":false,"landing_page_url":"https://doi.org/10.1080/00958970500156761","pdf_url":null,"source":{"id":"https://openalex.org/S161439912","display_name":"Journal of Coordination Chemistry","issn_l":"0095-8972","issn":["0095-8972","1026-7441","1029-0389"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","jufo-1","norway-1"],"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547","https://openalex.org/P4310320449"],"host_organization_lineage_names":["Taylor & Francis","Informa"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Coordination Chemistry","raw_type":"journal-article"},"volume":null,"type":"article","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/A5007113930","display_name":"Samir M. El\u2010Medani","orcid":"https://orcid.org/0000-0002-7519-2241","observed_orcids":["https://orcid.org/0000-0002-7519-2241"]},"institutions":[{"id":"https://openalex.org/I145487455","display_name":"Cairo University","ror":"https://ror.org/03q21mh05","country_code":"EG","type":"education","lineage":["https://openalex.org/I145487455"]}],"countries":["EG"],"is_corresponding":false,"raw_author_name":"Samir M. El-Medani","raw_affiliation_strings":["a   Chemistry Department , Faculty of Science, Cairo University, El-Faiyum Branch , El-Faiyum,  Egypt"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"a   Chemistry Department , Faculty of Science, Cairo University, El-Faiyum Branch , El-Faiyum,  Egypt","institution_ids":["https://openalex.org/I145487455"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5090538672","display_name":"Omyma A.M. Ali","orcid":"https://orcid.org/0000-0002-3240-1250","observed_orcids":["https://orcid.org/0000-0002-3240-1250"]},"institutions":[{"id":"https://openalex.org/I107720978","display_name":"Ain Shams University","ror":"https://ror.org/00cb9w016","country_code":"EG","type":"education","lineage":["https://openalex.org/I107720978"]}],"countries":["EG"],"is_corresponding":false,"raw_author_name":"Omyma A. M. Ali","raw_affiliation_strings":["b   Chemistry Department , University College for Girls, Ain Shams University , Cairo,  Egypt","Chemistry Department , University College for Girls, Ain Shams University , Cairo, Egypt"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"b   Chemistry Department , University College for Girls, Ain Shams University , Cairo,  Egypt","institution_ids":["https://openalex.org/I107720978"]},{"raw_affiliation_string":"Chemistry Department , University College for Girls, Ain Shams University , Cairo, Egypt","institution_ids":["https://openalex.org/I107720978"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5007228763","display_name":"Hassan A. Mohamed","orcid":"https://orcid.org/0000-0002-6633-2353","observed_orcids":["https://orcid.org/0000-0002-6633-2353"]},"institutions":[{"id":"https://openalex.org/I145487455","display_name":"Cairo University","ror":"https://ror.org/03q21mh05","country_code":"EG","type":"education","lineage":["https://openalex.org/I145487455"]}],"countries":["EG"],"is_corresponding":false,"raw_author_name":"Hassan A. Mohamed","raw_affiliation_strings":["a   Chemistry Department , Faculty of Science, Cairo University, El-Faiyum Branch , El-Faiyum,  Egypt"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"a   Chemistry Department , Faculty of Science, Cairo University, El-Faiyum Branch , El-Faiyum,  Egypt","institution_ids":["https://openalex.org/I145487455"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5037374747","display_name":"Ramadan M. Ramadan","orcid":"https://orcid.org/0000-0002-9755-5410","observed_orcids":["https://orcid.org/0000-0002-9755-5410"]},"institutions":[{"id":"https://openalex.org/I107720978","display_name":"Ain Shams University","ror":"https://ror.org/00cb9w016","country_code":"EG","type":"education","lineage":["https://openalex.org/I107720978"]}],"countries":["EG"],"is_corresponding":true,"raw_author_name":"Ramadan M. Ramadan","raw_affiliation_strings":["c   Chemistry Department , Faculty of Science, Ain Shams University , Cairo,  Egypt","Chemistry Department, Faculty of Science, Ain Shams University, Cairo , Egypt"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"c   Chemistry Department , Faculty of Science, Ain Shams University , Cairo,  Egypt","institution_ids":["https://openalex.org/I107720978"]},{"raw_affiliation_string":"Chemistry Department, Faculty of Science, Ain Shams University, Cairo , Egypt","institution_ids":["https://openalex.org/I107720978"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5037374747"],"corresponding_institution_ids":["https://openalex.org/I107720978"],"apc_list":null,"apc_paid":null,"fwci":0.4641,"has_fulltext":false,"cited_by_count":15,"citation_normalized_percentile":{"value":0.64881403,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"58","issue":"16","first_page":"1429","last_page":"1437"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10464","display_name":"Crystal structures of chemical compounds","score":0.9961000084877014,"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":0.9961000084877014,"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","score":0.0012000000569969416,"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/T10163","display_name":"Metal complexes synthesis and properties","score":0.0010999999940395355,"subfield":{"id":"https://openalex.org/subfields/2730","display_name":"Oncology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/nickel-ii-complexes","display_name":"nickel(II) complexes","score":0.9919999837875366},{"id":"https://openalex.org/keywords/pyrazine-2-carboxylate","display_name":"pyrazine-2-carboxylate","score":0.9760000109672546},{"id":"https://openalex.org/keywords/thiourea","display_name":"thiourea","score":0.9470000267028809},{"id":"https://openalex.org/keywords/2-aminobenzimidazole","display_name":"2-aminobenzimidazole","score":0.9990000128746033},{"id":"https://openalex.org/keywords/octahedral-coordination","display_name":"octahedral coordination","score":0.6669999957084656},{"id":"https://openalex.org/keywords/crystal-structure","display_name":"crystal structure","score":0.7260000109672546},{"id":"https://openalex.org/keywords/thermal-analysis","display_name":"thermal analysis","score":0.6449999809265137},{"id":"https://openalex.org/keywords/infrared-spectroscopy","display_name":"infrared spectroscopy","score":0.7139999866485596},{"id":"https://openalex.org/keywords/coordination-geometry","display_name":"coordination geometry","score":0.414000004529953},{"id":"https://openalex.org/keywords/water-of-crystallization","display_name":"water of crystallization","score":0.4690000116825104}],"concepts":[{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.9077451229095459},{"id":"https://openalex.org/C504270822","wikidata":"https://www.wikidata.org/wiki/Q744","display_name":"Nickel","level":2,"score":0.762998640537262},{"id":"https://openalex.org/C2778074193","wikidata":"https://www.wikidata.org/wiki/Q3498942","display_name":"Carboxylate","level":2,"score":0.7560737729072571},{"id":"https://openalex.org/C8010536","wikidata":"https://www.wikidata.org/wiki/Q160398","display_name":"Crystallography","level":1,"score":0.7513445019721985},{"id":"https://openalex.org/C32909587","wikidata":"https://www.wikidata.org/wiki/Q11369","display_name":"Molecule","level":2,"score":0.6841965913772583},{"id":"https://openalex.org/C61276311","wikidata":"https://www.wikidata.org/wiki/Q624543","display_name":"Monoclinic crystal system","level":3,"score":0.6624338030815125},{"id":"https://openalex.org/C115624301","wikidata":"https://www.wikidata.org/wiki/Q895901","display_name":"Crystal structure","level":2,"score":0.6530041694641113},{"id":"https://openalex.org/C198819137","wikidata":"https://www.wikidata.org/wiki/Q188884","display_name":"Octahedron","level":3,"score":0.5787867307662964},{"id":"https://openalex.org/C2777765701","wikidata":"https://www.wikidata.org/wiki/Q424284","display_name":"Pyrazine","level":2,"score":0.5191644430160522},{"id":"https://openalex.org/C153642686","wikidata":"https://www.wikidata.org/wiki/Q70906","display_name":"Infrared spectroscopy","level":2,"score":0.4608878791332245},{"id":"https://openalex.org/C2780538656","wikidata":"https://www.wikidata.org/wiki/Q528995","display_name":"Thiourea","level":2,"score":0.45016464591026306},{"id":"https://openalex.org/C39297587","wikidata":"https://www.wikidata.org/wiki/Q2630364","display_name":"Octahedral molecular geometry","level":3,"score":0.4240190088748932},{"id":"https://openalex.org/C179104552","wikidata":"https://www.wikidata.org/wiki/Q11165","display_name":"Inorganic chemistry","level":1,"score":0.3383582830429077},{"id":"https://openalex.org/C71240020","wikidata":"https://www.wikidata.org/wiki/Q186011","display_name":"Stereochemistry","level":1,"score":0.22713702917099},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.04997339844703674}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1080/00958970500156761","doi":"https://doi.org/10.1080/00958970500156761","is_oa":false,"landing_page_url":"https://doi.org/10.1080/00958970500156761","pdf_url":null,"source":{"id":"https://openalex.org/S161439912","display_name":"Journal of Coordination Chemistry","issn_l":"0095-8972","issn":["0095-8972","1026-7441","1029-0389"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","jufo-1","norway-1"],"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547","https://openalex.org/P4310320449"],"host_organization_lineage_names":["Taylor & Francis","Informa"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Coordination Chemistry","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"sustainable_development_goals_aurora":[{"score":0.7599999904632568,"display_name":"Clean water and sanitation","id":"https://metadata.un.org/sdg/6"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":11,"referenced_works":["https://openalex.org/W1776915284","https://openalex.org/W1969292643","https://openalex.org/W1984173415","https://openalex.org/W1993074543","https://openalex.org/W2045542078","https://openalex.org/W2048529352","https://openalex.org/W2052752040","https://openalex.org/W2060071618","https://openalex.org/W2080183932","https://openalex.org/W2109254548","https://openalex.org/W2950357650"],"related_works":["https://openalex.org/W2347801173","https://openalex.org/W3140009167","https://openalex.org/W2946605252","https://openalex.org/W1993638806","https://openalex.org/W2900575275","https://openalex.org/W2347869517","https://openalex.org/W1515322105","https://openalex.org/W2926329603","https://openalex.org/W2884333790","https://openalex.org/W2077383470"],"abstract_inverted_index":{"Three":[0],"nickel(II)":[1,50],"complexes":[2,34,48,71],"[Ni(PC)2(H2O)2],":[3],"1,":[4,85],"[Ni(PC)2(TU)2],":[5],"2":[6,87,115],"and":[7,17,23,30,63,88,121,134],"[Ni(PC)2(ABI)2]\u00b7":[8],"2(H2O),":[9],"3,":[10],"PC":[11,54,119],"=":[12,15,19],"pyrazine-2-carboxylate,":[13],"TU":[14],"thiourea":[16,123],"ABI":[18,142],"2-aminobenzimidazole,":[20],"were":[21,35,72,162],"synthesized":[22],"characterized":[24],"by":[25,38],"elemental":[26],"analysis,":[27],"IR":[28],"spectroscopy":[29],"thermal":[31],"analysis.":[32,43],"The":[33,69,94,112,128],"also":[36],"investigated":[37],"single":[39],"crystal":[40],"X-ray":[41],"diffraction":[42],"Structures":[44],"of":[45,60,96,107,114,117,130,160,167],"the":[46,64,104,146,165],"monomeric":[47],"showed":[49,98,135],"chelated":[51,144],"to":[52,145],"two":[53,99,118,122,141],"ions":[55,120],"from":[56],"an":[57],"oxygen":[58],"atom":[59],"carboxylate":[61],"ion":[62,148],"adjacent":[65],"hetero":[66,154],"nitrogen":[67,155],"atom.":[68],"three":[70],"crystallized":[73],"in":[74,125,149,164],"a":[75,108,136],"monoclinic":[76],"system":[77],"with":[78,140],"P2":[79],"1":[80,97],"/c":[81],"space":[82,92],"group":[83],"for":[84],"while":[86],"3":[89,131],"had":[90],"C2/c":[91],"groups.":[93],"structure":[95,113,129,166],"coordinated":[100],"water":[101,158],"molecules":[102,124,143,159],"occupying":[103],"trans":[105,126],"positions":[106,151],"slightly":[109],"elongated":[110],"octahedron.":[111],"consisted":[116],"positions.":[127],"was":[132],"different":[133],"highly":[137],"distorted":[138],"octahedron":[139],"nickel":[147],"cis":[150],"through":[152],"their":[153],"atoms.":[156],"Two":[157],"crystallisation":[161],"shown":[163],"3.":[168]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2015,"cited_by_count":3},{"year":2014,"cited_by_count":1},{"year":2012,"cited_by_count":2}],"updated_date":"2026-08-15T07:11:24.734988","created_date":"2025-10-10T00:00:00"}