{"id":"https://openalex.org/W4414798237","doi":"https://doi.org/10.1021/acs.organomet.5c00327","title":"An Alkyne as Central Noninnocent Ligating Unit in Pincer Coordination: A Rigid Bis(indenopyridine) [NCCN]-Ligand for Early Transition Metals","display_name":"An Alkyne as Central Noninnocent Ligating Unit in Pincer Coordination: A Rigid Bis(indenopyridine) [NCCN]-Ligand for Early Transition Metals","publication_year":2025,"publication_date":"2025-10-03","ids":{"openalex":"https://openalex.org/W4414798237","doi":"https://doi.org/10.1021/acs.organomet.5c00327"},"language":"en","primary_location":{"id":"doi:10.1021/acs.organomet.5c00327","doi":"https://doi.org/10.1021/acs.organomet.5c00327","is_oa":false,"landing_page_url":"https://doi.org/10.1021/acs.organomet.5c00327","pdf_url":null,"source":{"id":"https://openalex.org/S4924609","display_name":"Organometallics","issn_l":"0276-7333","issn":["0276-7333","1520-6041"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-a","jufo-1","norway-2","poland-100","russia-white-list-1"],"host_organization":"https://openalex.org/P4310320006","host_organization_name":"American Chemical Society","host_organization_lineage":["https://openalex.org/P4310320006"],"host_organization_lineage_names":["American Chemical Society"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Organometallics","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/A5030538727","display_name":"Benjamin Rudin","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I223822909","display_name":"Heidelberg University","ror":"https://ror.org/038t36y30","country_code":"DE","type":"education","lineage":["https://openalex.org/I223822909"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Benjamin Rudin","raw_affiliation_strings":["Anorganisch-Chemisches Institut, Universit\u00e4t Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Anorganisch-Chemisches Institut, Universit\u00e4t Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany","institution_ids":["https://openalex.org/I223822909"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5065840408","display_name":"Lukas Eberle","orcid":"https://orcid.org/0009-0003-9723-4646","observed_orcids":["https://orcid.org/0009-0003-9723-4646"]},"institutions":[{"id":"https://openalex.org/I223822909","display_name":"Heidelberg University","ror":"https://ror.org/038t36y30","country_code":"DE","type":"education","lineage":["https://openalex.org/I223822909"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Lukas Eberle","raw_affiliation_strings":["Anorganisch-Chemisches Institut, Universit\u00e4t Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany"],"raw_orcid":"https://orcid.org/0009-0003-9723-4646","affiliations":[{"raw_affiliation_string":"Anorganisch-Chemisches Institut, Universit\u00e4t Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany","institution_ids":["https://openalex.org/I223822909"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5119836725","display_name":"Celina Celebcigil","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I223822909","display_name":"Heidelberg University","ror":"https://ror.org/038t36y30","country_code":"DE","type":"education","lineage":["https://openalex.org/I223822909"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Celina Celebcigil","raw_affiliation_strings":["Anorganisch-Chemisches Institut, Universit\u00e4t Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Anorganisch-Chemisches Institut, Universit\u00e4t Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany","institution_ids":["https://openalex.org/I223822909"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5066055309","display_name":"Lutz H. Gade","orcid":"https://orcid.org/0000-0002-7107-8169","observed_orcids":["https://orcid.org/0000-0002-7107-8169"]},"institutions":[{"id":"https://openalex.org/I223822909","display_name":"Heidelberg University","ror":"https://ror.org/038t36y30","country_code":"DE","type":"education","lineage":["https://openalex.org/I223822909"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"Lutz H. Gade","raw_affiliation_strings":["Anorganisch-Chemisches Institut, Universit\u00e4t Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany"],"raw_orcid":"https://orcid.org/0000-0002-7107-8169","affiliations":[{"raw_affiliation_string":"Anorganisch-Chemisches Institut, Universit\u00e4t Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany","institution_ids":["https://openalex.org/I223822909"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5025368227","display_name":"Joachim Ballmann","orcid":"https://orcid.org/0000-0001-6431-4197","observed_orcids":["https://orcid.org/0000-0001-6431-4197"]},"institutions":[{"id":"https://openalex.org/I223822909","display_name":"Heidelberg University","ror":"https://ror.org/038t36y30","country_code":"DE","type":"education","lineage":["https://openalex.org/I223822909"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Joachim Ballmann","raw_affiliation_strings":["Anorganisch-Chemisches Institut, Universit\u00e4t Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Anorganisch-Chemisches Institut, Universit\u00e4t Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany","institution_ids":["https://openalex.org/I223822909"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5066055309"],"corresponding_institution_ids":["https://openalex.org/I223822909"],"apc_list":{"value":4500,"currency":"USD","value_usd":4500},"apc_paid":null,"fwci":0.2965,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.46674003,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":93,"max":96},"biblio":{"volume":"44","issue":"20","first_page":"2457","last_page":"2465"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10092","display_name":"Organometallic Complex Synthesis and Catalysis","score":0.9384999871253967,"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/T10092","display_name":"Organometallic Complex Synthesis and Catalysis","score":0.9384999871253967,"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/T12228","display_name":"Coordination Chemistry and Organometallics","score":0.015599999576807022,"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/T11746","display_name":"Inorganic and Organometallic Chemistry","score":0.01549999974668026,"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/redox-active-ligands","display_name":"redox-active ligands","score":0.8489999771118164},{"id":"https://openalex.org/keywords/alkyne-ligands","display_name":"alkyne ligands","score":0.7860000133514404},{"id":"https://openalex.org/keywords/early-transition-metals","display_name":"early transition metals","score":0.6669999957084656},{"id":"https://openalex.org/keywords/titanium-complexes","display_name":"titanium complexes","score":0.8119999766349792},{"id":"https://openalex.org/keywords/stille-coupling","display_name":"Stille coupling","score":0.8009999990463257},{"id":"https://openalex.org/keywords/alkyne-activation","display_name":"alkyne activation","score":0.6000000238418579},{"id":"https://openalex.org/keywords/grignard-reagents","display_name":"Grignard reagents","score":0.8360000252723694}],"concepts":[{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.939300000667572},{"id":"https://openalex.org/C2779012754","wikidata":"https://www.wikidata.org/wiki/Q159226","display_name":"Alkyne","level":3,"score":0.8317999839782715},{"id":"https://openalex.org/C2777517455","wikidata":"https://www.wikidata.org/wiki/Q133145","display_name":"Acetylene","level":2,"score":0.7760999798774719},{"id":"https://openalex.org/C106773901","wikidata":"https://www.wikidata.org/wiki/Q19588","display_name":"Transition metal","level":3,"score":0.760699987411499},{"id":"https://openalex.org/C91819851","wikidata":"https://www.wikidata.org/wiki/Q146889","display_name":"Pincer movement","level":3,"score":0.6815000176429749},{"id":"https://openalex.org/C116569031","wikidata":"https://www.wikidata.org/wiki/Q899107","display_name":"Ligand (biochemistry)","level":3,"score":0.6119999885559082},{"id":"https://openalex.org/C164361826","wikidata":"https://www.wikidata.org/wiki/Q177604","display_name":"Alkylation","level":3,"score":0.491100013256073},{"id":"https://openalex.org/C196099240","wikidata":"https://www.wikidata.org/wiki/Q177033","display_name":"Triple bond","level":3,"score":0.4569999873638153},{"id":"https://openalex.org/C40875361","wikidata":"https://www.wikidata.org/wiki/Q2356542","display_name":"Reagent","level":2,"score":0.45190000534057617},{"id":"https://openalex.org/C145255805","wikidata":"https://www.wikidata.org/wiki/Q899861","display_name":"Stille reaction","level":3,"score":0.44369998574256897},{"id":"https://openalex.org/C544153396","wikidata":"https://www.wikidata.org/wiki/Q11426","display_name":"Metal","level":2,"score":0.4041000008583069},{"id":"https://openalex.org/C2779240715","wikidata":"https://www.wikidata.org/wiki/Q333936","display_name":"Nitrile","level":2,"score":0.39149999618530273},{"id":"https://openalex.org/C188027245","wikidata":"https://www.wikidata.org/wiki/Q750446","display_name":"Polymer chemistry","level":1,"score":0.3707999885082245},{"id":"https://openalex.org/C502130503","wikidata":"https://www.wikidata.org/wiki/Q1089","display_name":"Palladium","level":3,"score":0.3635999858379364},{"id":"https://openalex.org/C21951064","wikidata":"https://www.wikidata.org/wiki/Q899212","display_name":"Combinatorial chemistry","level":1,"score":0.3594000041484833},{"id":"https://openalex.org/C131584629","wikidata":"https://www.wikidata.org/wiki/Q4308705","display_name":"Coupling (piping)","level":2,"score":0.35280001163482666},{"id":"https://openalex.org/C91967747","wikidata":"https://www.wikidata.org/wiki/Q2770033","display_name":"Group 2 organometallic chemistry","level":3,"score":0.34689998626708984},{"id":"https://openalex.org/C122637931","wikidata":"https://www.wikidata.org/wiki/Q118084","display_name":"Unit (ring theory)","level":2,"score":0.3278000056743622},{"id":"https://openalex.org/C2777164566","wikidata":"https://www.wikidata.org/wiki/Q419257","display_name":"Carbene","level":3,"score":0.3190000057220459},{"id":"https://openalex.org/C68913812","wikidata":"https://www.wikidata.org/wiki/Q238156","display_name":"Coordination complex","level":3,"score":0.313400000333786},{"id":"https://openalex.org/C89031862","wikidata":"https://www.wikidata.org/wiki/Q906964","display_name":"Transition state","level":3,"score":0.3059000074863434},{"id":"https://openalex.org/C71240020","wikidata":"https://www.wikidata.org/wiki/Q186011","display_name":"Stereochemistry","level":1,"score":0.30140000581741333},{"id":"https://openalex.org/C75473681","wikidata":"https://www.wikidata.org/wiki/Q188651","display_name":"Photochemistry","level":1,"score":0.2953999936580658},{"id":"https://openalex.org/C137955730","wikidata":"https://www.wikidata.org/wiki/Q6844361","display_name":"Migratory insertion","level":3,"score":0.2881999909877777},{"id":"https://openalex.org/C48424934","wikidata":"https://www.wikidata.org/wiki/Q898912","display_name":"Coupling reaction","level":3,"score":0.2842000126838684},{"id":"https://openalex.org/C32909587","wikidata":"https://www.wikidata.org/wiki/Q11369","display_name":"Molecule","level":2,"score":0.2791999876499176},{"id":"https://openalex.org/C504270822","wikidata":"https://www.wikidata.org/wiki/Q744","display_name":"Nickel","level":2,"score":0.2761000096797943},{"id":"https://openalex.org/C123010829","wikidata":"https://www.wikidata.org/wiki/Q2381018","display_name":"Zonal and meridional","level":2,"score":0.2709999978542328},{"id":"https://openalex.org/C155647269","wikidata":"https://www.wikidata.org/wiki/Q243455","display_name":"Medicinal chemistry","level":1,"score":0.2709999978542328},{"id":"https://openalex.org/C2993098599","wikidata":"https://www.wikidata.org/wiki/Q1238028","display_name":"Grignard reagent","level":3,"score":0.2612000107765198},{"id":"https://openalex.org/C8010536","wikidata":"https://www.wikidata.org/wiki/Q160398","display_name":"Crystallography","level":1,"score":0.25850000977516174}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1021/acs.organomet.5c00327","doi":"https://doi.org/10.1021/acs.organomet.5c00327","is_oa":false,"landing_page_url":"https://doi.org/10.1021/acs.organomet.5c00327","pdf_url":null,"source":{"id":"https://openalex.org/S4924609","display_name":"Organometallics","issn_l":"0276-7333","issn":["0276-7333","1520-6041"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-a","jufo-1","norway-2","poland-100","russia-white-list-1"],"host_organization":"https://openalex.org/P4310320006","host_organization_name":"American Chemical Society","host_organization_lineage":["https://openalex.org/P4310320006"],"host_organization_lineage_names":["American Chemical Society"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Organometallics","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"sustainable_development_goals_aurora":[],"study_designs":[],"awards":[{"id":"https://openalex.org/G2755670621","display_name":null,"funder_award_id":"BA 4859/3-2","funder_id":"https://openalex.org/F4320320879","funder_display_name":"Deutsche Forschungsgemeinschaft"},{"id":"https://openalex.org/G402306430","display_name":null,"funder_award_id":"INST 40/575\u20101 FUGG","funder_id":"https://openalex.org/F4320320879","funder_display_name":"Deutsche Forschungsgemeinschaft"},{"id":"https://openalex.org/G6960320242","display_name":null,"funder_award_id":"BA 4859/3-1","funder_id":"https://openalex.org/F4320320879","funder_display_name":"Deutsche Forschungsgemeinschaft"}],"funders":[{"id":"https://openalex.org/F4320310414","display_name":"Baden-W\u00fcrttemberg Stiftung","ror":"https://ror.org/031h5fa94"},{"id":"https://openalex.org/F4320320879","display_name":"Deutsche Forschungsgemeinschaft","ror":"https://ror.org/018mejw64"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":67,"referenced_works":["https://openalex.org/W627720861","https://openalex.org/W1779702343","https://openalex.org/W1916081083","https://openalex.org/W1975980833","https://openalex.org/W1982909092","https://openalex.org/W1989089949","https://openalex.org/W1994628146","https://openalex.org/W1996273492","https://openalex.org/W1999233351","https://openalex.org/W2007622934","https://openalex.org/W2007980877","https://openalex.org/W2019359876","https://openalex.org/W2039149803","https://openalex.org/W2045259250","https://openalex.org/W2066189561","https://openalex.org/W2068111590","https://openalex.org/W2080506484","https://openalex.org/W2088419309","https://openalex.org/W2093253344","https://openalex.org/W2105249240","https://openalex.org/W2132291425","https://openalex.org/W2133320381","https://openalex.org/W2136218557","https://openalex.org/W2144947341","https://openalex.org/W2144963237","https://openalex.org/W2152697522","https://openalex.org/W2152848100","https://openalex.org/W2154634991","https://openalex.org/W2161428240","https://openalex.org/W2314193242","https://openalex.org/W2327295304","https://openalex.org/W2331740548","https://openalex.org/W2333875011","https://openalex.org/W2530475862","https://openalex.org/W2610713121","https://openalex.org/W2743329591","https://openalex.org/W2786630066","https://openalex.org/W2794398534","https://openalex.org/W2801504092","https://openalex.org/W2801631961","https://openalex.org/W2856314042","https://openalex.org/W2907318745","https://openalex.org/W2917567770","https://openalex.org/W2924269402","https://openalex.org/W2949453712","https://openalex.org/W2951449910","https://openalex.org/W2952286547","https://openalex.org/W2964184037","https://openalex.org/W2980460345","https://openalex.org/W3011087464","https://openalex.org/W3016893231","https://openalex.org/W3021344652","https://openalex.org/W3025642495","https://openalex.org/W3025886775","https://openalex.org/W3047806974","https://openalex.org/W3102731404","https://openalex.org/W3128133771","https://openalex.org/W3139600540","https://openalex.org/W3151857665","https://openalex.org/W3201843114","https://openalex.org/W4212871526","https://openalex.org/W4238224337","https://openalex.org/W4367596479","https://openalex.org/W4377092923","https://openalex.org/W4381715844","https://openalex.org/W4391838379","https://openalex.org/W4392861366"],"related_works":[],"abstract_inverted_index":{"Stille":[0],"coupling":[1],"of":[2,37,57,91,95,129,146,153],"two":[3],"indenopyridine":[4,59],"derivatives":[5,156],"with":[6,64,123,135],"a":[7,15,24,46,88,97,99,144],"distannylated":[8],"acetylene":[9,18,67],"has":[10,108],"provided":[11,141],"convenient":[12],"access":[13,142],"to":[14,29,44,71,143],"novel":[16],"bis(indenopyridine)-substituted":[17],"ligand":[19,160],"(":[20,105,132],"1":[21],")":[22,107,134],"featuring":[23],"rigid":[25],"backbone.":[26],"Upon":[27],"coordination":[28,93],"early":[30],"transition":[31],"metals":[32],"such":[33,96],"as":[34],"titanium,":[35],"activation":[36],"the":[38,55,58,65,92,113,124,150],"central":[39,66],"alkyne":[40],"unit":[41],"was":[42],"expected":[43],"induce":[45],"significant":[47],"geometric":[48],"distortion.":[49],"This":[50],"in":[51,111],"turn":[52],"would":[53],"drive":[54],"reorientation":[56],"wingtip":[60],"units":[61],"and":[62,138],"combined":[63],"bonding":[68],"give":[69],"rise":[70],"an":[72,79],"overall":[73],"meridional":[74],"arrangement.":[75],"The":[76],"latter":[77],"is":[78,116],"essential":[80],"feature":[81],"for":[82],"achieving":[83],"defined":[84],"[NCCN]-type":[85],"coordination.":[86],"In":[87],"first":[89],"study":[90],"behavior":[94],"ligand,":[98],"highly":[100],"symmetrical":[101],"titanium(IV)":[102],"dichloride":[103],"complex":[104],"2":[106,120,131,133],"been":[109],"synthesized":[110],"which":[112],"metal":[114],"center":[115],"stabilized":[117],"by":[118],"X":[119],"-type":[121],"interaction":[122],"\u03c0-coordinated":[125],"alkyne.":[126],"Subsequent":[127],"alkylation":[128],"[NCCN]TiCl":[130],"various":[136],"organolithium":[137],"Grignard":[139],"reagents":[140],"series":[145],"bis(alkyl)titanium":[147],"complexes,":[148],"demonstrating":[149],"synthetic":[151],"accessibility":[152],"well-defined":[154],"organometallic":[155],"based":[157],"on":[158],"this":[159],"platform.":[161]},"counts_by_year":[{"year":2026,"cited_by_count":1}],"updated_date":"2026-10-09T09:14:12.587421","created_date":"2025-10-10T00:00:00"}
