Chemical and photochemical properties of a ruthenium nitrosyl complex with the N-monosubstituted cyclam 1-(3-Propylammonium)-1,4,8,11-tetraazacyclotetradecane

Detalhes bibliográficos
Autor(a) principal: Ferreira, Kleber Queiroz
Data de Publicação: 2010
Outros Autores: Tfouni, Elia
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/6077
Resumo: p. 1349-1358
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spelling Ferreira, Kleber QueirozTfouni, EliaFerreira, Kleber QueirozTfouni, Elia2012-06-04T20:16:13Z2012-06-04T20:16:13Z20100103-5053http://www.repositorio.ufba.br/ri/handle/ri/6077v. 21, n. 7p. 1349-1358The amine-functionalized trans-[Ru(NO)Cl(1-pramcyH)](PF6)3 complex (1-pramcyH = 1-(3-propylammonium)-1,4,8,11-tetraazacyclotetradecane) was synthesized from trans-[RuCl(tfms) (1-pramcyH)](tfms)2 (tfms = trifluoromethanesulfonate) in acidic aqueous solution in the presence of nitric oxide (NO). The complex was characterized by elemental, spectroscopic (UV-Vis, IR, 1H and 13C NMR) and electrochemical analyses. Two pKa values (7.0 and 8.2) were estimated for trans-[Ru(NO)Cl(1-pramcyH)](PF6)3 and were assigned to one of the cyclam nitrogen protons and to the protonated aminopropyl group. Reduction of trans-[Ru(NO)Cl(1-pramcyH)]3+ results in rapid loss of chloride followed by slower loss of NO, while irradiation of the complex in aqueous deaerated conditions suggests photochemical labilization of NO. The quantum yields for NO photoaquation decrease as the irradiation wavelength increases, being noticeable only at λirr < 370 nm, and increase as pH increases. The behavior of trans-[Ru(NO)Cl(1-pramcyH)]3+, which contains an aminopropyl substituted cyclam, parallels that reported for the analogous complex with the unsubstituted ligand, but differs from that described for the complex in which carboxypropyl is the substituent.Submitted by Bruna Lessa (lessbruna@gmail.com) on 2012-06-04T20:16:13Z No. of bitstreams: 1 (59)a22v21n7.pdf: 642984 bytes, checksum: 7472eb866b7cb9a7a00fb26d4d7557d0 (MD5)Made available in DSpace on 2012-06-04T20:16:13Z (GMT). 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dc.title.pt_BR.fl_str_mv Chemical and photochemical properties of a ruthenium nitrosyl complex with the N-monosubstituted cyclam 1-(3-Propylammonium)-1,4,8,11-tetraazacyclotetradecane
dc.title.alternative.pt_BR.fl_str_mv Journal of the Brazilian Chemical Society
title Chemical and photochemical properties of a ruthenium nitrosyl complex with the N-monosubstituted cyclam 1-(3-Propylammonium)-1,4,8,11-tetraazacyclotetradecane
spellingShingle Chemical and photochemical properties of a ruthenium nitrosyl complex with the N-monosubstituted cyclam 1-(3-Propylammonium)-1,4,8,11-tetraazacyclotetradecane
Ferreira, Kleber Queiroz
nitrosyl
ruthenium
nitric oxide donor
substituted cylam
mono-N-functionalized cyclam
title_short Chemical and photochemical properties of a ruthenium nitrosyl complex with the N-monosubstituted cyclam 1-(3-Propylammonium)-1,4,8,11-tetraazacyclotetradecane
title_full Chemical and photochemical properties of a ruthenium nitrosyl complex with the N-monosubstituted cyclam 1-(3-Propylammonium)-1,4,8,11-tetraazacyclotetradecane
title_fullStr Chemical and photochemical properties of a ruthenium nitrosyl complex with the N-monosubstituted cyclam 1-(3-Propylammonium)-1,4,8,11-tetraazacyclotetradecane
title_full_unstemmed Chemical and photochemical properties of a ruthenium nitrosyl complex with the N-monosubstituted cyclam 1-(3-Propylammonium)-1,4,8,11-tetraazacyclotetradecane
title_sort Chemical and photochemical properties of a ruthenium nitrosyl complex with the N-monosubstituted cyclam 1-(3-Propylammonium)-1,4,8,11-tetraazacyclotetradecane
author Ferreira, Kleber Queiroz
author_facet Ferreira, Kleber Queiroz
Tfouni, Elia
author_role author
author2 Tfouni, Elia
author2_role author
dc.contributor.author.fl_str_mv Ferreira, Kleber Queiroz
Tfouni, Elia
Ferreira, Kleber Queiroz
Tfouni, Elia
dc.subject.por.fl_str_mv nitrosyl
ruthenium
nitric oxide donor
substituted cylam
mono-N-functionalized cyclam
topic nitrosyl
ruthenium
nitric oxide donor
substituted cylam
mono-N-functionalized cyclam
description p. 1349-1358
publishDate 2010
dc.date.issued.fl_str_mv 2010
dc.date.accessioned.fl_str_mv 2012-06-04T20:16:13Z
dc.date.available.fl_str_mv 2012-06-04T20:16:13Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/6077
dc.identifier.issn.none.fl_str_mv 0103-5053
dc.identifier.number.pt_BR.fl_str_mv v. 21, n. 7
identifier_str_mv 0103-5053
v. 21, n. 7
url http://www.repositorio.ufba.br/ri/handle/ri/6077
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Scielo
publisher.none.fl_str_mv Scielo
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1590/S0103-50532010000700022
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
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