Nickel(II) complexes with Schiff-base ligands derived from epimeric pyranose backbones as 2,3-chelators: modeling the coordination chemistry of chitosan
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| Title: | Nickel(II) complexes with Schiff-base ligands derived from epimeric pyranose backbones as 2,3-chelators: modeling the coordination chemistry of chitosan |
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| Authors: | Burkhardt, Anja1, Görls, Helmar1, Plass, Winfried sekr.plass@uni-jena.de |
| Source: | Carbohydrate Research. May2008, Vol. 343 Issue 7, p1266-1277. 12p. |
| Subjects: | Ligands (Biochemistry), Physical & theoretical chemistry, Organic compounds, Glucosamine |
| Abstract: | Abstract: Two mononuclear nickel(II) complexes with Schiff-base ligands derived from the epimeric sugars glucosamine and mannosamine have been synthesized. The X-ray crystal structure reveals a distorted octahedral geometry at the nickel(II) ions with an N4O2 donor set and the rare 2,3-chelation of the donor atoms of the carbohydrate backbone. Upon complexation only the glucopyranose ring maintains the 4 C 1 chair conformation, whereas the mannopyranose ring adopts the O S 5 screw-boat conformation. Dimeric units of complex cations are formed by intermolecular hydrogen bonding which are further assembled by π-stacking affording one-dimensional chains with a twofold screw symmetry. [Copyright &y& Elsevier] |
| Copyright of Carbohydrate Research is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 31754629 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Nickel(II) complexes with Schiff-base ligands derived from epimeric pyranose backbones as 2,3-chelators: modeling the coordination chemistry of chitosan – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Burkhardt%2C+Anja%22">Burkhardt, Anja</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Görls%2C+Helmar%22">Görls, Helmar</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Plass%2C+Winfried%22">Plass, Winfried</searchLink><i> sekr.plass@uni-jena.de</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Carbohydrate+Research%22">Carbohydrate Research</searchLink>. May2008, Vol. 343 Issue 7, p1266-1277. 12p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Ligands+%28Biochemistry%29%22">Ligands (Biochemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Physical+%26+theoretical+chemistry%22">Physical & theoretical chemistry</searchLink><br /><searchLink fieldCode="DE" term="%22Organic+compounds%22">Organic compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Glucosamine%22">Glucosamine</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: Two mononuclear nickel(II) complexes with Schiff-base ligands derived from the epimeric sugars glucosamine and mannosamine have been synthesized. The X-ray crystal structure reveals a distorted octahedral geometry at the nickel(II) ions with an N4O2 donor set and the rare 2,3-chelation of the donor atoms of the carbohydrate backbone. Upon complexation only the glucopyranose ring maintains the 4 C 1 chair conformation, whereas the mannopyranose ring adopts the O S 5 screw-boat conformation. Dimeric units of complex cations are formed by intermolecular hydrogen bonding which are further assembled by π-stacking affording one-dimensional chains with a twofold screw symmetry. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Carbohydrate Research is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.carres.2008.01.039 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 1266 Subjects: – SubjectFull: Ligands (Biochemistry) Type: general – SubjectFull: Physical & theoretical chemistry Type: general – SubjectFull: Organic compounds Type: general – SubjectFull: Glucosamine Type: general Titles: – TitleFull: Nickel(II) complexes with Schiff-base ligands derived from epimeric pyranose backbones as 2,3-chelators: modeling the coordination chemistry of chitosan Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Burkhardt, Anja – PersonEntity: Name: NameFull: Görls, Helmar – PersonEntity: Name: NameFull: Plass, Winfried IsPartOfRelationships: – BibEntity: Dates: – D: 19 M: 05 Text: May2008 Type: published Y: 2008 Identifiers: – Type: issn-print Value: 00086215 Numbering: – Type: volume Value: 343 – Type: issue Value: 7 Titles: – TitleFull: Carbohydrate Research Type: main |
| ResultId | 1 |
