Cobalt Half-Sandwich, Sandwich, and Mixed Sandwich Complexes with Soft Tripodal Ligands

Cobalt Half-Sandwich, Sandwich, and Mixed Sandwich Complexes with Soft Tripodal Ligands

Reaction of sodium hydrotris(methimazolyl)borate (NaTmMe) with cobalt halides leads to the formation of paramagnetic pseudotetrahedral [Co(TmMe)X] (X = Cl, Br, I), of which the bromide has been crystallographically characterized. Mass spectrometry reveals the presence of higher molecular weight frag...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Inorganic chemistry 2004-08, Vol.43 (16), p.4927-4934
Hauptverfasser: Dodds, Christopher A, Lehmann, Mario-Alexander, Ojo, Jonathan F, Reglinski, John, Spicer, Mark D
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 4934
container_issue 16
container_start_page 4927
container_title Inorganic chemistry
container_volume 43
creator Dodds, Christopher A
Lehmann, Mario-Alexander
Ojo, Jonathan F
Reglinski, John
Spicer, Mark D
description Reaction of sodium hydrotris(methimazolyl)borate (NaTmMe) with cobalt halides leads to the formation of paramagnetic pseudotetrahedral [Co(TmMe)X] (X = Cl, Br, I), of which the bromide has been crystallographically characterized. Mass spectrometry reveals the presence of higher molecular weight fragments [Co(TmMe)2]+ and [Co2(TmMe)2X]+ in solution. Aerial oxidation in donor solvents (e.g. MeCN) leads to formation of the [Co(TmMe)2]+ cation, which has been crystallographically characterized as the BF4 -, ClO4 -, Br-, and I-, salts. Attempts to prepare the mixed sandwich complex, [Co(Cp)(TmMe)]+, resulted in ligand decomposition to yield [Co(mtH)3I]I (mtH = 1-methylimidazole-2-thione), but with the more electron donating methylcyclopentadienyl (CpMe) ligand, [Co(CpMe)(TmMe)]I was isolated and characterized. Electrochemical measurements reveal that the cobalt(III) TmMe complexes are consistently more difficult to reduce than their Tp and Cp congeners.
doi_str_mv 10.1021/ic0496525
format Article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_66765944</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>66765944</sourcerecordid><originalsourceid>FETCH-LOGICAL-a311t-5c66511edeaa5f400e3c033642165bd0882d87c3b86352ae66deb3d85da630203</originalsourceid><addsrcrecordid>eNptkEFLwzAcxYMobk4PfgHJRUGw-k_TZO1Rijph4mETvZU0SV1Gu9SkZfPbG9lwF0_v8fjx4D2EzgncEojJnZGQZJzF7AANCYshYgQ-DtEQIHjCeTZAJ94vASCjCT9GgwClLORD9J7bUtQdnoi6imZipdZGLm7w3gWDX8xGq78M57Zpa73RHq9Nt8AzW3V47kxrlajx1HwGzp-io0rUXp_tdITeHh_m-SSavj495_fTSFBCuohJzhkhWmkhWJUAaCqBUp7EhLNSQZrGKh1LWqacslhozpUuqUqZEpyGdXSErra9rbNfvfZd0RgvdV2Llba9Lzgfc5YlSQCvt6B01nunq6J1phHuuyBQ_L5Y_L0Y2ItdaV82Wu3J3W0BuNwCQvpiaXu3Chv_KfoBr1Z29w</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>66765944</pqid></control><display><type>article</type><title>Cobalt Half-Sandwich, Sandwich, and Mixed Sandwich Complexes with Soft Tripodal Ligands</title><source>ACS Publications</source><creator>Dodds, Christopher A ; Lehmann, Mario-Alexander ; Ojo, Jonathan F ; Reglinski, John ; Spicer, Mark D</creator><creatorcontrib>Dodds, Christopher A ; Lehmann, Mario-Alexander ; Ojo, Jonathan F ; Reglinski, John ; Spicer, Mark D</creatorcontrib><description>Reaction of sodium hydrotris(methimazolyl)borate (NaTmMe) with cobalt halides leads to the formation of paramagnetic pseudotetrahedral [Co(TmMe)X] (X = Cl, Br, I), of which the bromide has been crystallographically characterized. Mass spectrometry reveals the presence of higher molecular weight fragments [Co(TmMe)2]+ and [Co2(TmMe)2X]+ in solution. Aerial oxidation in donor solvents (e.g. MeCN) leads to formation of the [Co(TmMe)2]+ cation, which has been crystallographically characterized as the BF4 -, ClO4 -, Br-, and I-, salts. Attempts to prepare the mixed sandwich complex, [Co(Cp)(TmMe)]+, resulted in ligand decomposition to yield [Co(mtH)3I]I (mtH = 1-methylimidazole-2-thione), but with the more electron donating methylcyclopentadienyl (CpMe) ligand, [Co(CpMe)(TmMe)]I was isolated and characterized. Electrochemical measurements reveal that the cobalt(III) TmMe complexes are consistently more difficult to reduce than their Tp and Cp congeners.</description><identifier>ISSN: 0020-1669</identifier><identifier>EISSN: 1520-510X</identifier><identifier>DOI: 10.1021/ic0496525</identifier><identifier>PMID: 15285669</identifier><language>eng</language><publisher>United States: American Chemical Society</publisher><ispartof>Inorganic chemistry, 2004-08, Vol.43 (16), p.4927-4934</ispartof><rights>Copyright © 2004 American Chemical Society</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a311t-5c66511edeaa5f400e3c033642165bd0882d87c3b86352ae66deb3d85da630203</citedby><cites>FETCH-LOGICAL-a311t-5c66511edeaa5f400e3c033642165bd0882d87c3b86352ae66deb3d85da630203</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/ic0496525$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/ic0496525$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>315,782,786,2769,27085,27933,27934,56747,56797</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/15285669$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Dodds, Christopher A</creatorcontrib><creatorcontrib>Lehmann, Mario-Alexander</creatorcontrib><creatorcontrib>Ojo, Jonathan F</creatorcontrib><creatorcontrib>Reglinski, John</creatorcontrib><creatorcontrib>Spicer, Mark D</creatorcontrib><title>Cobalt Half-Sandwich, Sandwich, and Mixed Sandwich Complexes with Soft Tripodal Ligands</title><title>Inorganic chemistry</title><addtitle>Inorg. Chem</addtitle><description>Reaction of sodium hydrotris(methimazolyl)borate (NaTmMe) with cobalt halides leads to the formation of paramagnetic pseudotetrahedral [Co(TmMe)X] (X = Cl, Br, I), of which the bromide has been crystallographically characterized. Mass spectrometry reveals the presence of higher molecular weight fragments [Co(TmMe)2]+ and [Co2(TmMe)2X]+ in solution. Aerial oxidation in donor solvents (e.g. MeCN) leads to formation of the [Co(TmMe)2]+ cation, which has been crystallographically characterized as the BF4 -, ClO4 -, Br-, and I-, salts. Attempts to prepare the mixed sandwich complex, [Co(Cp)(TmMe)]+, resulted in ligand decomposition to yield [Co(mtH)3I]I (mtH = 1-methylimidazole-2-thione), but with the more electron donating methylcyclopentadienyl (CpMe) ligand, [Co(CpMe)(TmMe)]I was isolated and characterized. Electrochemical measurements reveal that the cobalt(III) TmMe complexes are consistently more difficult to reduce than their Tp and Cp congeners.</description><issn>0020-1669</issn><issn>1520-510X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNptkEFLwzAcxYMobk4PfgHJRUGw-k_TZO1Rijph4mETvZU0SV1Gu9SkZfPbG9lwF0_v8fjx4D2EzgncEojJnZGQZJzF7AANCYshYgQ-DtEQIHjCeTZAJ94vASCjCT9GgwClLORD9J7bUtQdnoi6imZipdZGLm7w3gWDX8xGq78M57Zpa73RHq9Nt8AzW3V47kxrlajx1HwGzp-io0rUXp_tdITeHh_m-SSavj495_fTSFBCuohJzhkhWmkhWJUAaCqBUp7EhLNSQZrGKh1LWqacslhozpUuqUqZEpyGdXSErra9rbNfvfZd0RgvdV2Llba9Lzgfc5YlSQCvt6B01nunq6J1phHuuyBQ_L5Y_L0Y2ItdaV82Wu3J3W0BuNwCQvpiaXu3Chv_KfoBr1Z29w</recordid><startdate>20040809</startdate><enddate>20040809</enddate><creator>Dodds, Christopher A</creator><creator>Lehmann, Mario-Alexander</creator><creator>Ojo, Jonathan F</creator><creator>Reglinski, John</creator><creator>Spicer, Mark D</creator><general>American Chemical Society</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20040809</creationdate><title>Cobalt Half-Sandwich, Sandwich, and Mixed Sandwich Complexes with Soft Tripodal Ligands</title><author>Dodds, Christopher A ; Lehmann, Mario-Alexander ; Ojo, Jonathan F ; Reglinski, John ; Spicer, Mark D</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a311t-5c66511edeaa5f400e3c033642165bd0882d87c3b86352ae66deb3d85da630203</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Dodds, Christopher A</creatorcontrib><creatorcontrib>Lehmann, Mario-Alexander</creatorcontrib><creatorcontrib>Ojo, Jonathan F</creatorcontrib><creatorcontrib>Reglinski, John</creatorcontrib><creatorcontrib>Spicer, Mark D</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Inorganic chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dodds, Christopher A</au><au>Lehmann, Mario-Alexander</au><au>Ojo, Jonathan F</au><au>Reglinski, John</au><au>Spicer, Mark D</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Cobalt Half-Sandwich, Sandwich, and Mixed Sandwich Complexes with Soft Tripodal Ligands</atitle><jtitle>Inorganic chemistry</jtitle><addtitle>Inorg. Chem</addtitle><date>2004-08-09</date><risdate>2004</risdate><volume>43</volume><issue>16</issue><spage>4927</spage><epage>4934</epage><pages>4927-4934</pages><issn>0020-1669</issn><eissn>1520-510X</eissn><abstract>Reaction of sodium hydrotris(methimazolyl)borate (NaTmMe) with cobalt halides leads to the formation of paramagnetic pseudotetrahedral [Co(TmMe)X] (X = Cl, Br, I), of which the bromide has been crystallographically characterized. Mass spectrometry reveals the presence of higher molecular weight fragments [Co(TmMe)2]+ and [Co2(TmMe)2X]+ in solution. Aerial oxidation in donor solvents (e.g. MeCN) leads to formation of the [Co(TmMe)2]+ cation, which has been crystallographically characterized as the BF4 -, ClO4 -, Br-, and I-, salts. Attempts to prepare the mixed sandwich complex, [Co(Cp)(TmMe)]+, resulted in ligand decomposition to yield [Co(mtH)3I]I (mtH = 1-methylimidazole-2-thione), but with the more electron donating methylcyclopentadienyl (CpMe) ligand, [Co(CpMe)(TmMe)]I was isolated and characterized. Electrochemical measurements reveal that the cobalt(III) TmMe complexes are consistently more difficult to reduce than their Tp and Cp congeners.</abstract><cop>United States</cop><pub>American Chemical Society</pub><pmid>15285669</pmid><doi>10.1021/ic0496525</doi><tpages>8</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0020-1669
ispartof Inorganic chemistry, 2004-08, Vol.43 (16), p.4927-4934
issn 0020-1669
1520-510X
language eng
recordid cdi_proquest_miscellaneous_66765944
source ACS Publications
title Cobalt Half-Sandwich, Sandwich, and Mixed Sandwich Complexes with Soft Tripodal Ligands
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-11-29T05%3A35%3A09IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Cobalt%20Half-Sandwich,%20Sandwich,%20and%20Mixed%20Sandwich%20Complexes%20with%20Soft%20Tripodal%20Ligands&rft.jtitle=Inorganic%20chemistry&rft.au=Dodds,%20Christopher%20A&rft.date=2004-08-09&rft.volume=43&rft.issue=16&rft.spage=4927&rft.epage=4934&rft.pages=4927-4934&rft.issn=0020-1669&rft.eissn=1520-510X&rft_id=info:doi/10.1021/ic0496525&rft_dat=%3Cproquest_cross%3E66765944%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=66765944&rft_id=info:pmid/15285669&rfr_iscdi=true