Solvent effects of N-nitroso, N-(2-chloroethyl), N',N'-dibenzylsulfamid and its copper(II) and cobalt(II) complexes: fluorescence studies.
Identifieur interne : 000037 ( PubMed/Corpus ); précédent : 000036; suivant : 000038Solvent effects of N-nitroso, N-(2-chloroethyl), N',N'-dibenzylsulfamid and its copper(II) and cobalt(II) complexes: fluorescence studies.
Auteurs : Nadjia Bensouilah ; Hassina Fisli ; Nabila Dhaoui ; Nourredine Benali-Cherif ; Mohamed AbdaouiSource :
- Luminescence : the journal of biological and chemical luminescence [ 1522-7243 ]
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Cobalt, Copper, Luminescent Agents, Solvents.
- Fluorescence, Hydrogen Bonding.
Abstract
The structure of N-nitroso, N-(2-chloroethyl), N',N'-dibenzylsulfamid (CENS) was established by X-ray crystallography. The atomic coordinates, factors of isotropic thermal agitation, bond lengths and valence angles were determined. The solvent effects on the electronic absorption and fluorescence spectra of CENS were investigated at room temperature. The effects of solvent polarity and of hydrogen bonding were interpreted by means of linear solvation energy relationships (LSERs). Multiple linear regression analysis indicated that the hydrogen donation properties of the solvent play an important role in determining the position of the absorption maximum, while the classical polarity of the medium is the only dominating parameter in determining the emission maximum and the Stokes' shift. Complexation of the investigated compound by two different transition metal ions was studied. Fluorescence measurements show that fluorescence quenching by cobalt(II) is more important than that by copper(II). This phenomenon can be attributed to good stereo-structural matching between the electronic configuration of the Co(2+) ion and the active site distribution of CENS in aqueous solution.
DOI: 10.1002/bio.1393
PubMed: 22223178
Links to Exploration step
pubmed:22223178Le document en format XML
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The atomic coordinates, factors of isotropic thermal agitation, bond lengths and valence angles were determined. The solvent effects on the electronic absorption and fluorescence spectra of CENS were investigated at room temperature. The effects of solvent polarity and of hydrogen bonding were interpreted by means of linear solvation energy relationships (LSERs). Multiple linear regression analysis indicated that the hydrogen donation properties of the solvent play an important role in determining the position of the absorption maximum, while the classical polarity of the medium is the only dominating parameter in determining the emission maximum and the Stokes' shift. Complexation of the investigated compound by two different transition metal ions was studied. Fluorescence measurements show that fluorescence quenching by cobalt(II) is more important than that by copper(II). This phenomenon can be attributed to good stereo-structural matching between the electronic configuration of the Co(2+) ion and the active site distribution of CENS in aqueous solution.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">22223178</PMID><DateCreated><Year>2013</Year><Month>2</Month><Day>4</Day></DateCreated><DateCompleted><Year>2013</Year><Month>07</Month><Day>29</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1522-7243</ISSN><JournalIssue CitedMedium="Internet"><Volume>28</Volume><Issue>1</Issue><PubDate><MedlineDate>2013 Jan-Feb</MedlineDate></PubDate></JournalIssue><Title>Luminescence : the journal of biological and chemical luminescence</Title><ISOAbbreviation>Luminescence</ISOAbbreviation></Journal><ArticleTitle>Solvent effects of N-nitroso, N-(2-chloroethyl), N',N'-dibenzylsulfamid and its copper(II) and cobalt(II) complexes: fluorescence studies.</ArticleTitle><Pagination><MedlinePgn>30-7</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1002/bio.1393</ELocationID><Abstract><AbstractText>The structure of N-nitroso, N-(2-chloroethyl), N',N'-dibenzylsulfamid (CENS) was established by X-ray crystallography. The atomic coordinates, factors of isotropic thermal agitation, bond lengths and valence angles were determined. The solvent effects on the electronic absorption and fluorescence spectra of CENS were investigated at room temperature. The effects of solvent polarity and of hydrogen bonding were interpreted by means of linear solvation energy relationships (LSERs). Multiple linear regression analysis indicated that the hydrogen donation properties of the solvent play an important role in determining the position of the absorption maximum, while the classical polarity of the medium is the only dominating parameter in determining the emission maximum and the Stokes' shift. Complexation of the investigated compound by two different transition metal ions was studied. Fluorescence measurements show that fluorescence quenching by cobalt(II) is more important than that by copper(II). This phenomenon can be attributed to good stereo-structural matching between the electronic configuration of the Co(2+) ion and the active site distribution of CENS in aqueous solution.</AbstractText><CopyrightInformation>Copyright © 2012 John Wiley & Sons, Ltd.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Bensouilah</LastName><ForeName>Nadjia</ForeName><Initials>N</Initials><AffiliationInfo><Affiliation>Laboratory of Applied Chemistry, University of May 8th 1945, BP 401 Guelma, Algeria.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Fisli</LastName><ForeName>Hassina</ForeName><Initials>H</Initials></Author><Author ValidYN="Y"><LastName>Dhaoui</LastName><ForeName>Nabila</ForeName><Initials>N</Initials></Author><Author ValidYN="Y"><LastName>Benali-Cherif</LastName><ForeName>Nourredine</ForeName><Initials>N</Initials></Author><Author ValidYN="Y"><LastName>Abdaoui</LastName><ForeName>Mohamed</ForeName><Initials>M</Initials></Author></AuthorList><Language>ENG</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2012</Year><Month>Jan</Month><Day>04</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Luminescence</MedlineTA><NlmUniqueID>100889025</NlmUniqueID><ISSNLinking>1522-7235</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D049408">Luminescent Agents</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012997">Solvents</NameOfSubstance></Chemical><Chemical><RegistryNumber>3G0H8C9362</RegistryNumber><NameOfSubstance UI="D003035">Cobalt</NameOfSubstance></Chemical><Chemical><RegistryNumber>789U1901C5</RegistryNumber><NameOfSubstance UI="D003300">Copper</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D003035" MajorTopicYN="N">Cobalt</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D003300" MajorTopicYN="N">Copper</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005453" MajorTopicYN="N">Fluorescence</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006860" MajorTopicYN="N">Hydrogen Bonding</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D049408" MajorTopicYN="N">Luminescent Agents</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012997" MajorTopicYN="N">Solvents</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2010</Year><Month>12</Month><Day>4</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2011</Year><Month>5</Month><Day>4</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2011</Year><Month>11</Month><Day>14</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2012</Year><Month>1</Month><Day>7</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2012</Year><Month>1</Month><Day>10</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2013</Year><Month>7</Month><Day>31</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">22223178</ArticleId><ArticleId IdType="doi">10.1002/bio.1393</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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