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Article: Lipid-bilayer-mimicking solid-state structures of Cu(ii) and Ni(ii) with l-tryptophan and l-tyrosine Schiff base derivatives

TitleLipid-bilayer-mimicking solid-state structures of Cu(ii) and Ni(ii) with l-tryptophan and l-tyrosine Schiff base derivatives
Authors
Issue Date2011
Citation
CrystEngComm, 2011, v. 13, n. 12, p. 4228-4235 How to Cite?
AbstractNew metal-amino acid Schiff bases resembling lipid bilayers have been isolated and established by single-crystal X-ray crystallography. Hydrogen bonding between the solvate and coordination sphere and aromatic stacking of the Schiff base ligands lead to discrete hydrophilic and hydrophobic regions. [Cu2(WNap)2(H2O)2]·2H 2O, 1 (WNap = N-(2-hydroxy-1-naphthalidene)-l-tryptophan), gives bilayer sheets with width ratio of ca. 3 Å: 5 Å (hydrophilic: hydrophobic). Replacement of Cu2+ by octahedral Ni2+ gives [Ni(WNap)(H2O)2(MeOH)]·H2O, 2, with a slight increase of hydrophilic layer width (by ca. 2 Å). The additional hydroxyl group in [Ni(YNap)(H2O)2(MeOH)]·1.5H 2O, 3 (YNap = N-(2-hydroxy-1-naphthalidene)-l-tyrosine), successfully introduces a separate amphiphilic layer, originated from the hydrogen bond interaction of tyrosine side chain. The coordination environments of 2 and 3 are isostructural whereas 1 is dinuclear with the Cu(ii) metal centers showing different geometries (square planar and square pyramid). © 2011 The Royal Society of Chemistry.
Persistent Identifierhttp://hdl.handle.net/10722/219376
ISSN
2015 Impact Factor: 3.849
2015 SCImago Journal Rankings: 1.096

 

DC FieldValueLanguage
dc.contributor.authorNew, Siu Yee-
dc.contributor.authorWu, Xuan-
dc.contributor.authorBai, Shi Qiang-
dc.contributor.authorKoh, Lip Lin-
dc.contributor.authorHor, T. S Andy-
dc.contributor.authorXue, Feng-
dc.date.accessioned2015-09-23T02:56:55Z-
dc.date.available2015-09-23T02:56:55Z-
dc.date.issued2011-
dc.identifier.citationCrystEngComm, 2011, v. 13, n. 12, p. 4228-4235-
dc.identifier.issn1466-8033-
dc.identifier.urihttp://hdl.handle.net/10722/219376-
dc.description.abstractNew metal-amino acid Schiff bases resembling lipid bilayers have been isolated and established by single-crystal X-ray crystallography. Hydrogen bonding between the solvate and coordination sphere and aromatic stacking of the Schiff base ligands lead to discrete hydrophilic and hydrophobic regions. [Cu2(WNap)2(H2O)2]·2H 2O, 1 (WNap = N-(2-hydroxy-1-naphthalidene)-l-tryptophan), gives bilayer sheets with width ratio of ca. 3 Å: 5 Å (hydrophilic: hydrophobic). Replacement of Cu2+ by octahedral Ni2+ gives [Ni(WNap)(H2O)2(MeOH)]·H2O, 2, with a slight increase of hydrophilic layer width (by ca. 2 Å). The additional hydroxyl group in [Ni(YNap)(H2O)2(MeOH)]·1.5H 2O, 3 (YNap = N-(2-hydroxy-1-naphthalidene)-l-tyrosine), successfully introduces a separate amphiphilic layer, originated from the hydrogen bond interaction of tyrosine side chain. The coordination environments of 2 and 3 are isostructural whereas 1 is dinuclear with the Cu(ii) metal centers showing different geometries (square planar and square pyramid). © 2011 The Royal Society of Chemistry.-
dc.languageeng-
dc.relation.ispartofCrystEngComm-
dc.titleLipid-bilayer-mimicking solid-state structures of Cu(ii) and Ni(ii) with l-tryptophan and l-tyrosine Schiff base derivatives-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1039/c0ce00986e-
dc.identifier.scopuseid_2-s2.0-79958017872-
dc.identifier.volume13-
dc.identifier.issue12-
dc.identifier.spage4228-
dc.identifier.epage4235-
dc.identifier.eissn1466-8033-

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