Strong hydrogen bonds in dicarboxylics acids and aromatics diamines.

dc.creatorRodrigues, JAR
dc.date2000
dc.dateNOV-DEC
dc.date2014-12-02T16:28:57Z
dc.date2015-11-26T16:43:56Z
dc.date2014-12-02T16:28:57Z
dc.date2015-11-26T16:43:56Z
dc.date.accessioned2018-03-28T23:29:06Z
dc.date.available2018-03-28T23:29:06Z
dc.identifierQuimica Nova. Soc Brasileira Quimica, v. 23, n. 6, n. 812, n. 817, 2000.
dc.identifier0100-4042
dc.identifierWOS:000165784100015
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/79606
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/79606
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/79606
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1273751
dc.descriptionA very short-strong hydrogen bond (<2 <Angstrom>, >20kcal/mol) is found in the monoanion of certain dicarboxylic acids derived from maleic and dialkylmalonic acids. Certain aromatic diamines that are known as proton sponge have exceptionally high basicity (pK(a)) and are only monoprotonated with strong acids like percloric acid. The closed proximity between the two basic centers provokes a strong steric interaction that is relieved upon protonation. Similar effects are found in dicarboxylic acids (hydrogen maleate and hydrogen dialkylmalonates) that present a very short distance between the two oxygens and a short-strong hydrogen bond.
dc.description23
dc.description6
dc.description812
dc.description817
dc.languagept
dc.publisherSoc Brasileira Quimica
dc.publisherSao Paulo
dc.publisherBrasil
dc.relationQuimica Nova
dc.relationQuim. Nova
dc.rightsaberto
dc.sourceWeb of Science
dc.subjectshort-strong hydrogen bond
dc.subjecthydrogen maleate
dc.subjecthydrogen malonates
dc.subjectproton sponge
dc.subjectEnzymatic Catalysis
dc.subjectAb-initio
dc.subjectSerine Proteases
dc.subjectProton Sponge
dc.subjectAnion
dc.subjectDiffraction
dc.subjectBasicities
dc.subjectStrength
dc.subjectGeometry
dc.subjectSymmetry
dc.titleStrong hydrogen bonds in dicarboxylics acids and aromatics diamines.
dc.typeArtículos de revistas


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