Indium complexes supported by 1,omega-dithiaalkanediyl-bridged bis(phenolato) ligands: synthesis, structure, and controlled ring-opening polymerization of L-lactide.
Identifieur interne : 001E20 ( Main/Exploration ); précédent : 001E19; suivant : 001E21Indium complexes supported by 1,omega-dithiaalkanediyl-bridged bis(phenolato) ligands: synthesis, structure, and controlled ring-opening polymerization of L-lactide.
Auteurs : RBID : pubmed:19425567English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Alkanes, Chlorine, Indium, Organometallic Compounds, Polyesters.
- chemical : Ligands.
- Magnetic Resonance Spectroscopy.
Abstract
Indium bis(phenolato) complexes [In(L)R(THF)(n)] (L = 1,4-dithiabutanediylbis(4,6-di-tert-butylphenolato) (etbbp), R = Cl, n = 0, 1; L = 1,3-dithiapropanediylbis(6-tert-butyl-4-methylphenolato) (mtbmp), R = Me, n = 1, 2; L = 1,4-dithiabutanediyl-bis(6-tert-butyl-4-methyl-phenolato) (etbmp), R = Me, n = 0, 3; L = etbbp, R = CH(2)SiMe(3), n = 0, 4; L = 1,4-dithiabutanediylbis{4,6-di(2-phenyl-2-propyl)phenolato} (etccp), R = CH(2)SiMe(3), n = 0, 5) were prepared from indium trichloride or from the corresponding tris(alkyl) complexes and 1 equiv of tetradentate 1,omega-dithiaalkanediyl-bridged bis(phenol) LH(2). The monomeric nature of the alkyl indium complexes was shown by X-ray diffraction studies of the complexes [In(mtbmp)Me(THF)] (2), [In(etbbp)(CH(2)SiMe(3))] (4), and [In(etccp)(CH(2)SiMe(3))] (5). Pseudo-octahedral configuration was found for 2, while square pyramidal structure was observed for 4 and 5. The isopropoxy complexes [In(L)(O(i)Pr)] (L = etbbp, 6; etccp, 7) were synthesized starting with indium tris(isopropoxide). Complex 6 crystallized as homochiral dimer of pseudo-octahedral fragments with bridging mu(2)-alkoxide ligands, but in solution two diastereomers were observed. The isopropoxy complexes efficiently initiated the ring-opening polymerization of L-lactide in toluene to give isotactic poly(L-lactides) with narrow molecular weight distribution (M(w)/M(n) = 1.03-1.18).
DOI: 10.1021/ic900161w
PubMed: 19425567
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Indium complexes supported by 1,omega-dithiaalkanediyl-bridged bis(phenolato) ligands: synthesis, structure, and controlled ring-opening polymerization of L-lactide.</title><author><name sortKey="Peckermann, Ilja" uniqKey="Peckermann I">Ilja Peckermann</name><affiliation wicri:level="3"><nlm:affiliation>Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany.</nlm:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen</wicri:regionArea><placeName><region type="land" nuts="1">Rhénanie-du-Nord-Westphalie</region><region type="district" nuts="2">District de Cologne</region><settlement type="city">Aix-la-Chapelle</settlement></placeName></affiliation></author><author><name sortKey="Kapelski, Andreas" uniqKey="Kapelski A">Andreas Kapelski</name></author><author><name sortKey="Spaniol, Thomas P" uniqKey="Spaniol T">Thomas P Spaniol</name></author><author><name sortKey="Okuda, Jun" uniqKey="Okuda J">Jun Okuda</name></author></titleStmt><publicationStmt><date when="2009">2009</date><idno type="doi">10.1021/ic900161w</idno><idno type="RBID">pubmed:19425567</idno><idno type="pmid">19425567</idno><idno type="wicri:Area/Main/Corpus">001E76</idno><idno type="wicri:Area/Main/Curation">001E76</idno><idno type="wicri:Area/Main/Exploration">001E20</idno></publicationStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Alkanes (chemistry)</term><term>Chlorine (chemistry)</term><term>Indium (chemistry)</term><term>Ligands</term><term>Magnetic Resonance Spectroscopy</term><term>Organometallic Compounds (chemistry)</term><term>Polyesters (chemistry)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Alkanes</term><term>Chlorine</term><term>Indium</term><term>Organometallic Compounds</term><term>Polyesters</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Ligands</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Magnetic Resonance Spectroscopy</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Indium bis(phenolato) complexes [In(L)R(THF)(n)] (L = 1,4-dithiabutanediylbis(4,6-di-tert-butylphenolato) (etbbp), R = Cl, n = 0, 1; L = 1,3-dithiapropanediylbis(6-tert-butyl-4-methylphenolato) (mtbmp), R = Me, n = 1, 2; L = 1,4-dithiabutanediyl-bis(6-tert-butyl-4-methyl-phenolato) (etbmp), R = Me, n = 0, 3; L = etbbp, R = CH(2)SiMe(3), n = 0, 4; L = 1,4-dithiabutanediylbis{4,6-di(2-phenyl-2-propyl)phenolato} (etccp), R = CH(2)SiMe(3), n = 0, 5) were prepared from indium trichloride or from the corresponding tris(alkyl) complexes and 1 equiv of tetradentate 1,omega-dithiaalkanediyl-bridged bis(phenol) LH(2). The monomeric nature of the alkyl indium complexes was shown by X-ray diffraction studies of the complexes [In(mtbmp)Me(THF)] (2), [In(etbbp)(CH(2)SiMe(3))] (4), and [In(etccp)(CH(2)SiMe(3))] (5). Pseudo-octahedral configuration was found for 2, while square pyramidal structure was observed for 4 and 5. The isopropoxy complexes [In(L)(O(i)Pr)] (L = etbbp, 6; etccp, 7) were synthesized starting with indium tris(isopropoxide). Complex 6 crystallized as homochiral dimer of pseudo-octahedral fragments with bridging mu(2)-alkoxide ligands, but in solution two diastereomers were observed. The isopropoxy complexes efficiently initiated the ring-opening polymerization of L-lactide in toluene to give isotactic poly(L-lactides) with narrow molecular weight distribution (M(w)/M(n) = 1.03-1.18).</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">19425567</PMID><DateCreated><Year>2009</Year><Month>06</Month><Day>08</Day></DateCreated><DateCompleted><Year>2009</Year><Month>08</Month><Day>05</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1520-510X</ISSN><JournalIssue CitedMedium="Internet"><Volume>48</Volume><Issue>12</Issue><PubDate><Year>2009</Year><Month>Jun</Month><Day>15</Day></PubDate></JournalIssue><Title>Inorganic chemistry</Title><ISOAbbreviation>Inorg Chem</ISOAbbreviation></Journal><ArticleTitle>Indium complexes supported by 1,omega-dithiaalkanediyl-bridged bis(phenolato) ligands: synthesis, structure, and controlled ring-opening polymerization of L-lactide.</ArticleTitle><Pagination><MedlinePgn>5526-34</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1021/ic900161w</ELocationID><Abstract><AbstractText>Indium bis(phenolato) complexes [In(L)R(THF)(n)] (L = 1,4-dithiabutanediylbis(4,6-di-tert-butylphenolato) (etbbp), R = Cl, n = 0, 1; L = 1,3-dithiapropanediylbis(6-tert-butyl-4-methylphenolato) (mtbmp), R = Me, n = 1, 2; L = 1,4-dithiabutanediyl-bis(6-tert-butyl-4-methyl-phenolato) (etbmp), R = Me, n = 0, 3; L = etbbp, R = CH(2)SiMe(3), n = 0, 4; L = 1,4-dithiabutanediylbis{4,6-di(2-phenyl-2-propyl)phenolato} (etccp), R = CH(2)SiMe(3), n = 0, 5) were prepared from indium trichloride or from the corresponding tris(alkyl) complexes and 1 equiv of tetradentate 1,omega-dithiaalkanediyl-bridged bis(phenol) LH(2). The monomeric nature of the alkyl indium complexes was shown by X-ray diffraction studies of the complexes [In(mtbmp)Me(THF)] (2), [In(etbbp)(CH(2)SiMe(3))] (4), and [In(etccp)(CH(2)SiMe(3))] (5). Pseudo-octahedral configuration was found for 2, while square pyramidal structure was observed for 4 and 5. The isopropoxy complexes [In(L)(O(i)Pr)] (L = etbbp, 6; etccp, 7) were synthesized starting with indium tris(isopropoxide). Complex 6 crystallized as homochiral dimer of pseudo-octahedral fragments with bridging mu(2)-alkoxide ligands, but in solution two diastereomers were observed. The isopropoxy complexes efficiently initiated the ring-opening polymerization of L-lactide in toluene to give isotactic poly(L-lactides) with narrow molecular weight distribution (M(w)/M(n) = 1.03-1.18).</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Peckermann</LastName><ForeName>Ilja</ForeName><Initials>I</Initials><Affiliation>Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany.</Affiliation></Author><Author ValidYN="Y"><LastName>Kapelski</LastName><ForeName>Andreas</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Spaniol</LastName><ForeName>Thomas P</ForeName><Initials>TP</Initials></Author><Author ValidYN="Y"><LastName>Okuda</LastName><ForeName>Jun</ForeName><Initials>J</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType>Journal Article</PublicationType><PublicationType>Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Inorg Chem</MedlineTA><NlmUniqueID>0366543</NlmUniqueID><ISSNLinking>0020-1669</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance>Alkanes</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance>Ligands</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance>Organometallic Compounds</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance>Polyesters</NameOfSubstance></Chemical><Chemical><RegistryNumber>045A6V3VFX</RegistryNumber><NameOfSubstance>Indium</NameOfSubstance></Chemical><Chemical><RegistryNumber>26969-66-4</RegistryNumber><NameOfSubstance>poly(lactide)</NameOfSubstance></Chemical><Chemical><RegistryNumber>4R7X1O2820</RegistryNumber><NameOfSubstance>Chlorine</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N">Alkanes</DescriptorName><QualifierName MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Chlorine</DescriptorName><QualifierName MajorTopicYN="N">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Indium</DescriptorName><QualifierName MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Ligands</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Magnetic Resonance Spectroscopy</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Organometallic Compounds</DescriptorName><QualifierName MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Polyesters</DescriptorName><QualifierName MajorTopicYN="Y">chemistry</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2009</Year><Month>5</Month><Day>12</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2009</Year><Month>5</Month><Day>12</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2009</Year><Month>8</Month><Day>6</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="doi">10.1021/ic900161w</ArticleId><ArticleId IdType="pubmed">19425567</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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