High-Temperature Single-Site Ethylene Polymerization Behavior of Titanate Complexes Supported by 1,3-Bis(3,5-dialkylpyrazol-1-yl)propan-2-olate Ligation

High-Temperature Single-Site Ethylene Polymerization Behavior of Titanate Complexes Supported by 1,3-Bis(3,5-dialkylpyrazol-1-yl)propan-2-olate Ligation

Titanate(1−) complexes Na[(THF)(κ1-O-bdbpzp)TiCl4] (1) and Na[(THF)(κ1-O-bdmpzp)TiCl4] (2) and titanate(2−) complexes [Na(THF)]2[(κ1-O-bdbpzp)2TiCl4] (4) and [Na(THF)]2[(κ1-O-bdmpzp)2TiCl4] (5) were obtained in good yield from reaction of Na[bdbpzp] or Na[bdmpzp] (sodium salt of 1,3-bis(3,5-di-tert-...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Inorganic chemistry 2007-10, Vol.46 (22), p.9495-9502
Hauptverfasser: Eaves, Richard, Parkin, Sean, Ladipo, Folami T
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 9502
container_issue 22
container_start_page 9495
container_title Inorganic chemistry
container_volume 46
creator Eaves, Richard
Parkin, Sean
Ladipo, Folami T
description Titanate(1−) complexes Na[(THF)(κ1-O-bdbpzp)TiCl4] (1) and Na[(THF)(κ1-O-bdmpzp)TiCl4] (2) and titanate(2−) complexes [Na(THF)]2[(κ1-O-bdbpzp)2TiCl4] (4) and [Na(THF)]2[(κ1-O-bdmpzp)2TiCl4] (5) were obtained in good yield from reaction of Na[bdbpzp] or Na[bdmpzp] (sodium salt of 1,3-bis(3,5-di-tert-butylpyrazol-1yl)propan-2-ol or 1,3-bis(3,5-dimethylpyrazol-1yl)propan-2-ol) with TiCl4 (in the appropriate molar ratio) at 0−25 °C. Protonolysis of TiCl4 with 1 equiv of bdmpzpH furnished related zwitterionic titanate(1−) complex 3 that possessed a κ2-N,O-coordinated pyrazolyl-alkoxide with pendant pyrazolium group. Methylalumoxane (MAO) activation of 1−5 under high-temperature solution polymerization conditions produced active single-site ethylene polymerization catalysts that exhibit considerably higher thermal stability (especially 2/MAO, 3/MAO, and 5/MAO) than previously reported for Cp2TiCl2/MAO or Ti catalysts supported by related heteroscorpionate or scorpionate ligation.
doi_str_mv 10.1021/ic701221f
format Article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_68420787</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>68420787</sourcerecordid><originalsourceid>FETCH-LOGICAL-a351t-4c438edf750f5dcd21aba19cbefce0d3e5cd4908907f03aad01582e5bf537ee93</originalsourceid><addsrcrecordid>eNpt0c1u1DAQB3ALUdGlcOAFUC6gVqphbMf5ONJtoaCVqJQFcbOcZLLr1olTO0FNn4THJe2uyoWTR_JP_xnNEPKGwQcGnH00VQqMc9Y8IwsmOVDJ4NdzsgCYa5Yk-SF5GcI1AOQiTl6QQ5bmwBPJF-TPpdls6RrbHr0eRo9RYbqNRVqYAaOLYTtZ7DC6cnZq0Zt7PRjXRWe41b-N85FrorUZdKdnvHRtb_EOQ1SMfe_8gHVUThE7FfTMhGNxKmlttL2ZbD95fe8sZXSyJ713ve4op84-pKzM5rHHK3LQaBvw9f49Ij8-X6yXl3T1_cvX5acV1UKygcZVLDKsm1RCI-uq5kyXmuVViU2FUAuUVR3nkOWQNiC0roHJjKMsGylSxFwckfe73HmO2xHDoFoTKrRWd-jGoJIs5pBm6QxPdrDyLgSPjeq9abWfFAP1cAb1dIbZvt2HjmWL9T-53_sM6A6YMODd07_2NypJRSrV-qpQ7Ftx_rNYnat49u92XldBXbvRd_NO_tP4L1f_oCU</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>68420787</pqid></control><display><type>article</type><title>High-Temperature Single-Site Ethylene Polymerization Behavior of Titanate Complexes Supported by 1,3-Bis(3,5-dialkylpyrazol-1-yl)propan-2-olate Ligation</title><source>ACS Publications</source><creator>Eaves, Richard ; Parkin, Sean ; Ladipo, Folami T</creator><creatorcontrib>Eaves, Richard ; Parkin, Sean ; Ladipo, Folami T</creatorcontrib><description>Titanate(1−) complexes Na[(THF)(κ1-O-bdbpzp)TiCl4] (1) and Na[(THF)(κ1-O-bdmpzp)TiCl4] (2) and titanate(2−) complexes [Na(THF)]2[(κ1-O-bdbpzp)2TiCl4] (4) and [Na(THF)]2[(κ1-O-bdmpzp)2TiCl4] (5) were obtained in good yield from reaction of Na[bdbpzp] or Na[bdmpzp] (sodium salt of 1,3-bis(3,5-di-tert-butylpyrazol-1yl)propan-2-ol or 1,3-bis(3,5-dimethylpyrazol-1yl)propan-2-ol) with TiCl4 (in the appropriate molar ratio) at 0−25 °C. Protonolysis of TiCl4 with 1 equiv of bdmpzpH furnished related zwitterionic titanate(1−) complex 3 that possessed a κ2-N,O-coordinated pyrazolyl-alkoxide with pendant pyrazolium group. Methylalumoxane (MAO) activation of 1−5 under high-temperature solution polymerization conditions produced active single-site ethylene polymerization catalysts that exhibit considerably higher thermal stability (especially 2/MAO, 3/MAO, and 5/MAO) than previously reported for Cp2TiCl2/MAO or Ti catalysts supported by related heteroscorpionate or scorpionate ligation.</description><identifier>ISSN: 0020-1669</identifier><identifier>EISSN: 1520-510X</identifier><identifier>DOI: 10.1021/ic701221f</identifier><identifier>PMID: 17902652</identifier><language>eng</language><publisher>United States: American Chemical Society</publisher><ispartof>Inorganic chemistry, 2007-10, Vol.46 (22), p.9495-9502</ispartof><rights>Copyright © 2007 American Chemical Society</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a351t-4c438edf750f5dcd21aba19cbefce0d3e5cd4908907f03aad01582e5bf537ee93</citedby><cites>FETCH-LOGICAL-a351t-4c438edf750f5dcd21aba19cbefce0d3e5cd4908907f03aad01582e5bf537ee93</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/ic701221f$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/ic701221f$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,777,781,2752,27057,27905,27906,56719,56769</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17902652$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Eaves, Richard</creatorcontrib><creatorcontrib>Parkin, Sean</creatorcontrib><creatorcontrib>Ladipo, Folami T</creatorcontrib><title>High-Temperature Single-Site Ethylene Polymerization Behavior of Titanate Complexes Supported by 1,3-Bis(3,5-dialkylpyrazol-1-yl)propan-2-olate Ligation</title><title>Inorganic chemistry</title><addtitle>Inorg. Chem</addtitle><description>Titanate(1−) complexes Na[(THF)(κ1-O-bdbpzp)TiCl4] (1) and Na[(THF)(κ1-O-bdmpzp)TiCl4] (2) and titanate(2−) complexes [Na(THF)]2[(κ1-O-bdbpzp)2TiCl4] (4) and [Na(THF)]2[(κ1-O-bdmpzp)2TiCl4] (5) were obtained in good yield from reaction of Na[bdbpzp] or Na[bdmpzp] (sodium salt of 1,3-bis(3,5-di-tert-butylpyrazol-1yl)propan-2-ol or 1,3-bis(3,5-dimethylpyrazol-1yl)propan-2-ol) with TiCl4 (in the appropriate molar ratio) at 0−25 °C. Protonolysis of TiCl4 with 1 equiv of bdmpzpH furnished related zwitterionic titanate(1−) complex 3 that possessed a κ2-N,O-coordinated pyrazolyl-alkoxide with pendant pyrazolium group. Methylalumoxane (MAO) activation of 1−5 under high-temperature solution polymerization conditions produced active single-site ethylene polymerization catalysts that exhibit considerably higher thermal stability (especially 2/MAO, 3/MAO, and 5/MAO) than previously reported for Cp2TiCl2/MAO or Ti catalysts supported by related heteroscorpionate or scorpionate ligation.</description><issn>0020-1669</issn><issn>1520-510X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNpt0c1u1DAQB3ALUdGlcOAFUC6gVqphbMf5ONJtoaCVqJQFcbOcZLLr1olTO0FNn4THJe2uyoWTR_JP_xnNEPKGwQcGnH00VQqMc9Y8IwsmOVDJ4NdzsgCYa5Yk-SF5GcI1AOQiTl6QQ5bmwBPJF-TPpdls6RrbHr0eRo9RYbqNRVqYAaOLYTtZ7DC6cnZq0Zt7PRjXRWe41b-N85FrorUZdKdnvHRtb_EOQ1SMfe_8gHVUThE7FfTMhGNxKmlttL2ZbD95fe8sZXSyJ713ve4op84-pKzM5rHHK3LQaBvw9f49Ij8-X6yXl3T1_cvX5acV1UKygcZVLDKsm1RCI-uq5kyXmuVViU2FUAuUVR3nkOWQNiC0roHJjKMsGylSxFwckfe73HmO2xHDoFoTKrRWd-jGoJIs5pBm6QxPdrDyLgSPjeq9abWfFAP1cAb1dIbZvt2HjmWL9T-53_sM6A6YMODd07_2NypJRSrV-qpQ7Ftx_rNYnat49u92XldBXbvRd_NO_tP4L1f_oCU</recordid><startdate>20071029</startdate><enddate>20071029</enddate><creator>Eaves, Richard</creator><creator>Parkin, Sean</creator><creator>Ladipo, Folami T</creator><general>American Chemical Society</general><scope>BSCLL</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20071029</creationdate><title>High-Temperature Single-Site Ethylene Polymerization Behavior of Titanate Complexes Supported by 1,3-Bis(3,5-dialkylpyrazol-1-yl)propan-2-olate Ligation</title><author>Eaves, Richard ; Parkin, Sean ; Ladipo, Folami T</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a351t-4c438edf750f5dcd21aba19cbefce0d3e5cd4908907f03aad01582e5bf537ee93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Eaves, Richard</creatorcontrib><creatorcontrib>Parkin, Sean</creatorcontrib><creatorcontrib>Ladipo, Folami T</creatorcontrib><collection>Istex</collection><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>Eaves, Richard</au><au>Parkin, Sean</au><au>Ladipo, Folami T</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>High-Temperature Single-Site Ethylene Polymerization Behavior of Titanate Complexes Supported by 1,3-Bis(3,5-dialkylpyrazol-1-yl)propan-2-olate Ligation</atitle><jtitle>Inorganic chemistry</jtitle><addtitle>Inorg. Chem</addtitle><date>2007-10-29</date><risdate>2007</risdate><volume>46</volume><issue>22</issue><spage>9495</spage><epage>9502</epage><pages>9495-9502</pages><issn>0020-1669</issn><eissn>1520-510X</eissn><abstract>Titanate(1−) complexes Na[(THF)(κ1-O-bdbpzp)TiCl4] (1) and Na[(THF)(κ1-O-bdmpzp)TiCl4] (2) and titanate(2−) complexes [Na(THF)]2[(κ1-O-bdbpzp)2TiCl4] (4) and [Na(THF)]2[(κ1-O-bdmpzp)2TiCl4] (5) were obtained in good yield from reaction of Na[bdbpzp] or Na[bdmpzp] (sodium salt of 1,3-bis(3,5-di-tert-butylpyrazol-1yl)propan-2-ol or 1,3-bis(3,5-dimethylpyrazol-1yl)propan-2-ol) with TiCl4 (in the appropriate molar ratio) at 0−25 °C. Protonolysis of TiCl4 with 1 equiv of bdmpzpH furnished related zwitterionic titanate(1−) complex 3 that possessed a κ2-N,O-coordinated pyrazolyl-alkoxide with pendant pyrazolium group. Methylalumoxane (MAO) activation of 1−5 under high-temperature solution polymerization conditions produced active single-site ethylene polymerization catalysts that exhibit considerably higher thermal stability (especially 2/MAO, 3/MAO, and 5/MAO) than previously reported for Cp2TiCl2/MAO or Ti catalysts supported by related heteroscorpionate or scorpionate ligation.</abstract><cop>United States</cop><pub>American Chemical Society</pub><pmid>17902652</pmid><doi>10.1021/ic701221f</doi><tpages>8</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0020-1669
ispartof Inorganic chemistry, 2007-10, Vol.46 (22), p.9495-9502
issn 0020-1669
1520-510X
language eng
recordid cdi_proquest_miscellaneous_68420787
source ACS Publications
title High-Temperature Single-Site Ethylene Polymerization Behavior of Titanate Complexes Supported by 1,3-Bis(3,5-dialkylpyrazol-1-yl)propan-2-olate Ligation
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-20T03%3A30%3A31IST&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=High-Temperature%20Single-Site%20Ethylene%20Polymerization%20Behavior%20of%20Titanate%20Complexes%20Supported%20by%201,3-Bis(3,5-dialkylpyrazol-1-yl)propan-2-olate%20Ligation&rft.jtitle=Inorganic%20chemistry&rft.au=Eaves,%20Richard&rft.date=2007-10-29&rft.volume=46&rft.issue=22&rft.spage=9495&rft.epage=9502&rft.pages=9495-9502&rft.issn=0020-1669&rft.eissn=1520-510X&rft_id=info:doi/10.1021/ic701221f&rft_dat=%3Cproquest_cross%3E68420787%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=68420787&rft_id=info:pmid/17902652&rfr_iscdi=true