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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleDipole moments in Langmuir monolayers from aromatic carboxylic acidspt_BR
dc.contributor.authorDynarowicz-Latka, Ppt_BR
dc.contributor.authorCavalli, Apt_BR
dc.contributor.authorSilva, DApt_BR
dc.contributor.authordos Santos, MCpt_BR
dc.contributor.authorOliveira, ONpt_BR
unicamp.authorUniv Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil UNESP, Inst Biociencias Letras & Ciencia Exatas, Sao Jose Do Rio Preto, SP, Brazil Univ Estadual Campinas, Inst Fis Gleb Wataghin, Campinas, SP, Brazilpt_BR
dc.subject.wosSurface-potential Measurementspt_BR
dc.subject.wosModelpt_BR
dc.subject.wosInterfacept_BR
dc.subject.wosFilmspt_BR
dc.description.abstractThe three-layer capacitor model proposed by Demchak and Fort [J. Colloid Interface Sci. 46 (1974) 191] is employed to relate measured surface potentials of Langmuir monolayers from a series of polyphenyl carboxylic acids to molecular dipole moments calculated using semiempirical quantum methods. The effective dielectric constant at the air/monolayer interface is 3.0 +/- 0.6, very close to that estimated for aliphatic compounds. Good agreement between theory and experiment is obtained by adopting a dielectric constant of 6.4 for the monolayer/water interface and a contribution from the water reorientation of -0.064 +/- 0.006 D, which shows that the parameters in the DF model are essentially the same as for aliphatic amphiphiles, such as esters, acids, alcohols and ethers. (C) 2000 Elsevier Science B.V. All rights reserved.pt
dc.relation.ispartofChemical Physics Letterspt_BR
dc.relation.ispartofabbreviationChem. Phys. Lett.pt_BR
dc.publisher.cityAmsterdampt_BR
dc.publisher.countryHolandapt_BR
dc.publisherElsevier Science Bvpt_BR
dc.date.issued2000pt_BR
dc.date.monthofcirculationAUG 11pt_BR
dc.identifier.citationChemical Physics Letters. Elsevier Science Bv, v. 326, n. 41671, n. 39, n. 44, 2000.pt_BR
dc.language.isoenpt_BR
dc.description.volume326pt_BR
dc.description.issuenumber41671pt_BR
dc.description.firstpage39pt_BR
dc.description.lastpage44pt_BR
dc.rightsfechadopt_BR
dc.rights.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policypt_BR
dc.sourceWeb of Sciencept_BR
unicamp.cruespUNESP USPpt_BR
dc.identifier.issn0009-2614pt_BR
dc.identifier.wosidWOS:000088679000005pt_BR
dc.identifier.doi10.1016/S0009-2614(00)00726-0pt_BR
dc.date.available2014-12-02T16:30:40Z
dc.date.available2015-11-26T16:44:40Z-
dc.date.accessioned2014-12-02T16:30:40Z
dc.date.accessioned2015-11-26T16:44:40Z-
dc.description.provenanceMade available in DSpace on 2014-12-02T16:30:40Z (GMT). No. of bitstreams: 1 WOS000088679000005.pdf: 130908 bytes, checksum: 68f3599b953d7ca3d1f9668f0f702a69 (MD5) Previous issue date: 2000en
dc.description.provenanceMade available in DSpace on 2015-11-26T16:44:40Z (GMT). No. of bitstreams: 2 WOS000088679000005.pdf: 130908 bytes, checksum: 68f3599b953d7ca3d1f9668f0f702a69 (MD5) WOS000088679000005.pdf.txt: 23186 bytes, checksum: 431b64583ed831887f603f4432423f99 (MD5) Previous issue date: 2000en
dc.identifier.urihttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/62567pt_BR
dc.identifier.urihttp://www.repositorio.unicamp.br/handle/REPOSIP/62567
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/62567-
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