Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12779/4668
DC FieldValueLanguage
dc.contributor.authorV., NOETHIG LASLOen_us
dc.contributor.authorN., Paulicen_us
dc.contributor.authorBasosi, Riccardoen_us
dc.contributor.authorPogni, Rebeccaen_us
dc.date.accessioned2021-03-30T15:43:48Z-
dc.date.available2021-03-30T15:43:48Z-
dc.date.issued2002-
dc.identifier.issn0277-5387en_US
dc.identifier.urihttp://hdl.handle.net/20.500.12779/4668-
dc.description18847en_US
dc.description.abstractIn order to show the importance of conformation of the amino acid side-chains on water binding or water release to the copper(II)in complexes with long aliphatic side-chains, the temperature dependence of Brownian motion of the bis[N,N-dimethyl-L-aalaninato]copper(II) complex compared with the bis[N,N-dimethyl-L-a-isoleucinato]copper(II) complex dissolved in deuteratedmethanol is analyzed. The hypothesis is that binding or release of the water molecule from copper(II) in the complex with N,Ndimethyl-L-a-isoleucine may be related to the conformation change of the amino acid side-chains. In the case of bis[N,N-dimethyl-L-a-alaninato]copper(II) the conformation change of the amino acid side-chains (/CH3) is not possible. If the copper(II) complexretains one conformation in the examined temperature interval, the reorientation correlation time t2, describing the Brownianmotion of the complex will be a linear function of h/T, as is obtained for bis[N,N-dimethyl-L-a-alaninato]copper(II). In the wholetemperature interval measured (276/332 K), the electron paramagnetic resonance (EPR) spectra are fitted well with characteristicparameters for the complex with bound water. For bis[N,N-dimethyl-L-a-isoleucinato]copper(II) more complex temperaturedependence of t2 on h/T is obtained. Above 300 K, the EPR spectra could not be fitted with the parameters of the complex withbound water, but are fitted well with the parameters characteristic for a copper(II) complex that does not contain an apical watermolecule.en_US
dc.language.isoenen_US
dc.relationNoneen_US
dc.relation.ispartofPOLYHEDRONen_US
dc.subjectEPR spectroscopy; copper(II) complexes; amino acids; N; N-dimethyl-L-α-isoleucineen_US
dc.titleRole of apically bound water molecule on aliphatic-aliphatic side-chain interactions in bis [N,N-dimethyl-L-α-isoleucinato]copper(II) studied by EPR spectroscopyen_US
dc.typeArticleen_US
dc.identifier.scopus2-s2.0-0036646168en_US
dc.relation.volume21en_US
dc.description.firstpage1643en_US
dc.description.lastpage1649en_US
dc.description.thirdmissionNot applicableen_US
item.cerifentitytypePublications-
item.grantfulltextnone-
item.languageiso639-1en-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.openairetypeArticle-
item.fulltextNo Fulltext-
crisitem.author.orcid0000-0003-1026-7668-
crisitem.author.orcid0000-0001-6681-1592-
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