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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
Title | Lipid-bilayer-mimicking solid-state structures of Cu(ii) and Ni(ii) with l-tryptophan and l-tyrosine Schiff base derivatives |
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Authors | |
Issue Date | 2011 |
Citation | CrystEngComm, 2011, v. 13, n. 12, p. 4228-4235 How to Cite? |
Abstract | New 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 Identifier | http://hdl.handle.net/10722/219376 |
ISSN | 2023 Impact Factor: 2.6 2023 SCImago Journal Rankings: 0.535 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | New, Siu Yee | - |
dc.contributor.author | Wu, Xuan | - |
dc.contributor.author | Bai, Shi Qiang | - |
dc.contributor.author | Koh, Lip Lin | - |
dc.contributor.author | Hor, T. S Andy | - |
dc.contributor.author | Xue, Feng | - |
dc.date.accessioned | 2015-09-23T02:56:55Z | - |
dc.date.available | 2015-09-23T02:56:55Z | - |
dc.date.issued | 2011 | - |
dc.identifier.citation | CrystEngComm, 2011, v. 13, n. 12, p. 4228-4235 | - |
dc.identifier.issn | 1466-8033 | - |
dc.identifier.uri | http://hdl.handle.net/10722/219376 | - |
dc.description.abstract | New 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.language | eng | - |
dc.relation.ispartof | CrystEngComm | - |
dc.title | Lipid-bilayer-mimicking solid-state structures of Cu(ii) and Ni(ii) with l-tryptophan and l-tyrosine Schiff base derivatives | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1039/c0ce00986e | - |
dc.identifier.scopus | eid_2-s2.0-79958017872 | - |
dc.identifier.volume | 13 | - |
dc.identifier.issue | 12 | - |
dc.identifier.spage | 4228 | - |
dc.identifier.epage | 4235 | - |
dc.identifier.eissn | 1466-8033 | - |
dc.identifier.isi | WOS:000291218500041 | - |
dc.identifier.issnl | 1466-8033 | - |