Preparation, cation-anion interactions and physicochemical properties of ether-functionalized imidazolium ionic liquids
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of the Brazilian Chemical Society (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532008000300009 |
Resumo: | A set of 1-alkyl ether (and 1-alkyl)-3-methylimidazolium ionic liquids 2-4 ([CxOyMIm]+[Anion]- or [CxMIm]+[Anion]-, where MIm = 3-methylimidazolium; CxOy = 1-alkyl ether, C7O3 = -(CH2)2O(CH2)2O(CH2)2OCH3 (A), C3O1 = -(CH2)2OCH3 (B); Cx = 1-alkyl, C10 = C10H21 (C), C4 = C4H9 (D); and [Anion]- = H3CSO3- (2), BF4- (3) or PF6- (4)) was prepared and characterized. The cation-anion hydrogen bonding strength showed to be mainly anion dependent and decreased in the order H3CSO3- > BF4- > PF6-. All methanesulfonate ionic liquids 2 possessed a strongly deshielded H² imidazolium ring proton. 1-Alkyl ether functionalized ionic liquids showed higher densities in comparison to their 1-alkyl equivalents. The salts 2a-b, 3a-d and 4a-b are room-temperature ionic liquids. All 1-alkyl ether functionalized ionic liquids (except 4b) are completely amorphous. The widest liquid ranges were obtained with the tetrafluoroborate ionic liquids due to their late solidification and excellent thermal stability. These data provide important information for the understanding of their application scope and the preparation of task-specific ionic liquids. |
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Preparation, cation-anion interactions and physicochemical properties of ether-functionalized imidazolium ionic liquidsimidazolium ionic liquidsether-functionalizedhydrogen bondingphysicochemical propertiestask-specificA set of 1-alkyl ether (and 1-alkyl)-3-methylimidazolium ionic liquids 2-4 ([CxOyMIm]+[Anion]- or [CxMIm]+[Anion]-, where MIm = 3-methylimidazolium; CxOy = 1-alkyl ether, C7O3 = -(CH2)2O(CH2)2O(CH2)2OCH3 (A), C3O1 = -(CH2)2OCH3 (B); Cx = 1-alkyl, C10 = C10H21 (C), C4 = C4H9 (D); and [Anion]- = H3CSO3- (2), BF4- (3) or PF6- (4)) was prepared and characterized. The cation-anion hydrogen bonding strength showed to be mainly anion dependent and decreased in the order H3CSO3- > BF4- > PF6-. All methanesulfonate ionic liquids 2 possessed a strongly deshielded H² imidazolium ring proton. 1-Alkyl ether functionalized ionic liquids showed higher densities in comparison to their 1-alkyl equivalents. The salts 2a-b, 3a-d and 4a-b are room-temperature ionic liquids. All 1-alkyl ether functionalized ionic liquids (except 4b) are completely amorphous. The widest liquid ranges were obtained with the tetrafluoroborate ionic liquids due to their late solidification and excellent thermal stability. These data provide important information for the understanding of their application scope and the preparation of task-specific ionic liquids.Sociedade Brasileira de Química2008-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532008000300009Journal of the Brazilian Chemical Society v.19 n.3 2008reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532008000300009info:eu-repo/semantics/openAccessSchrekker,Henri S.Silva,Dagoberto O.Gelesky,Marcos A.Stracke,Marcelo P.Schrekker,Clarissa M. L.Gonçalves,Reinaldo S.Dupont,Jairtoneng2008-05-27T00:00:00Zoai:scielo:S0103-50532008000300009Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2008-05-27T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Preparation, cation-anion interactions and physicochemical properties of ether-functionalized imidazolium ionic liquids |
title |
Preparation, cation-anion interactions and physicochemical properties of ether-functionalized imidazolium ionic liquids |
spellingShingle |
Preparation, cation-anion interactions and physicochemical properties of ether-functionalized imidazolium ionic liquids Schrekker,Henri S. imidazolium ionic liquids ether-functionalized hydrogen bonding physicochemical properties task-specific |
title_short |
Preparation, cation-anion interactions and physicochemical properties of ether-functionalized imidazolium ionic liquids |
title_full |
Preparation, cation-anion interactions and physicochemical properties of ether-functionalized imidazolium ionic liquids |
title_fullStr |
Preparation, cation-anion interactions and physicochemical properties of ether-functionalized imidazolium ionic liquids |
title_full_unstemmed |
Preparation, cation-anion interactions and physicochemical properties of ether-functionalized imidazolium ionic liquids |
title_sort |
Preparation, cation-anion interactions and physicochemical properties of ether-functionalized imidazolium ionic liquids |
author |
Schrekker,Henri S. |
author_facet |
Schrekker,Henri S. Silva,Dagoberto O. Gelesky,Marcos A. Stracke,Marcelo P. Schrekker,Clarissa M. L. Gonçalves,Reinaldo S. Dupont,Jairton |
author_role |
author |
author2 |
Silva,Dagoberto O. Gelesky,Marcos A. Stracke,Marcelo P. Schrekker,Clarissa M. L. Gonçalves,Reinaldo S. Dupont,Jairton |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Schrekker,Henri S. Silva,Dagoberto O. Gelesky,Marcos A. Stracke,Marcelo P. Schrekker,Clarissa M. L. Gonçalves,Reinaldo S. Dupont,Jairton |
dc.subject.por.fl_str_mv |
imidazolium ionic liquids ether-functionalized hydrogen bonding physicochemical properties task-specific |
topic |
imidazolium ionic liquids ether-functionalized hydrogen bonding physicochemical properties task-specific |
description |
A set of 1-alkyl ether (and 1-alkyl)-3-methylimidazolium ionic liquids 2-4 ([CxOyMIm]+[Anion]- or [CxMIm]+[Anion]-, where MIm = 3-methylimidazolium; CxOy = 1-alkyl ether, C7O3 = -(CH2)2O(CH2)2O(CH2)2OCH3 (A), C3O1 = -(CH2)2OCH3 (B); Cx = 1-alkyl, C10 = C10H21 (C), C4 = C4H9 (D); and [Anion]- = H3CSO3- (2), BF4- (3) or PF6- (4)) was prepared and characterized. The cation-anion hydrogen bonding strength showed to be mainly anion dependent and decreased in the order H3CSO3- > BF4- > PF6-. All methanesulfonate ionic liquids 2 possessed a strongly deshielded H² imidazolium ring proton. 1-Alkyl ether functionalized ionic liquids showed higher densities in comparison to their 1-alkyl equivalents. The salts 2a-b, 3a-d and 4a-b are room-temperature ionic liquids. All 1-alkyl ether functionalized ionic liquids (except 4b) are completely amorphous. The widest liquid ranges were obtained with the tetrafluoroborate ionic liquids due to their late solidification and excellent thermal stability. These data provide important information for the understanding of their application scope and the preparation of task-specific ionic liquids. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532008000300009 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532008000300009 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-50532008000300009 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Journal of the Brazilian Chemical Society v.19 n.3 2008 reponame:Journal of the Brazilian Chemical Society (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Journal of the Brazilian Chemical Society (Online) |
collection |
Journal of the Brazilian Chemical Society (Online) |
repository.name.fl_str_mv |
Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
||office@jbcs.sbq.org.br |
_version_ |
1750318168642945024 |