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Protonation Behaviour of Chiral Tetradentate Polypyridines Derived from α‐Pinene
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| Zeitschriftentitel: | Chemistry – A European Journal |
|---|---|
| Personen und Körperschaften: | , , |
| In: | Chemistry – A European Journal, 11, 2005, 1, S. 185-194 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Wiley
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| Schlagwörter: |
| author_facet |
Düggeli, Mathias Christen, Tobias von Zelewsky, Alexander Düggeli, Mathias Christen, Tobias von Zelewsky, Alexander |
|---|---|
| author |
Düggeli, Mathias Christen, Tobias von Zelewsky, Alexander |
| spellingShingle |
Düggeli, Mathias Christen, Tobias von Zelewsky, Alexander Chemistry – A European Journal Protonation Behaviour of Chiral Tetradentate Polypyridines Derived from α‐Pinene General Chemistry Catalysis Organic Chemistry |
| author_sort |
düggeli, mathias |
| spelling |
Düggeli, Mathias Christen, Tobias von Zelewsky, Alexander 0947-6539 1521-3765 Wiley General Chemistry Catalysis Organic Chemistry http://dx.doi.org/10.1002/chem.200400295 <jats:title>Abstract</jats:title><jats:p>Detailed protonation experiments of the [5,6]‐pinenebipyridine molecule and the unsubstituted [4,5]‐ and [5,6]‐CHIRAGEN[0] ligands in various solvents indicate a variety of structures of the protonated species. UV‐visible and NMR measurements (including <jats:sup>15</jats:sup>N chemical shifts) show the transition from <jats:italic>trans</jats:italic> to <jats:italic>cis</jats:italic> conformation of [5,6]‐pinenebipyridine upon protonation. The [4,5]‐CHIRAGEN[0] ligand, in which the protonation sites of the nitrogen atom donors are at opposite sides of the molecule, behave essentially like two independent bipyridine moieties; this behaviour was monitored by UV‐visible, CD and NMR spectroscopy (including <jats:sup>15</jats:sup>N data). In the case of the [5,6]‐CHIRAGEN[0], a pocket of donor atoms provides a chiral environment for two protons per ligand.</jats:p> Protonation Behaviour of Chiral Tetradentate Polypyridines Derived from α‐Pinene Chemistry – A European Journal |
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| title |
Protonation Behaviour of Chiral Tetradentate Polypyridines Derived from α‐Pinene |
| title_unstemmed |
Protonation Behaviour of Chiral Tetradentate Polypyridines Derived from α‐Pinene |
| title_full |
Protonation Behaviour of Chiral Tetradentate Polypyridines Derived from α‐Pinene |
| title_fullStr |
Protonation Behaviour of Chiral Tetradentate Polypyridines Derived from α‐Pinene |
| title_full_unstemmed |
Protonation Behaviour of Chiral Tetradentate Polypyridines Derived from α‐Pinene |
| title_short |
Protonation Behaviour of Chiral Tetradentate Polypyridines Derived from α‐Pinene |
| title_sort |
protonation behaviour of chiral tetradentate polypyridines derived from α‐pinene |
| topic |
General Chemistry Catalysis Organic Chemistry |
| url |
http://dx.doi.org/10.1002/chem.200400295 |
| publishDate |
2005 |
| physical |
185-194 |
| description |
<jats:title>Abstract</jats:title><jats:p>Detailed protonation experiments of the [5,6]‐pinenebipyridine molecule and the unsubstituted [4,5]‐ and [5,6]‐CHIRAGEN[0] ligands in various solvents indicate a variety of structures of the protonated species. UV‐visible and NMR measurements (including <jats:sup>15</jats:sup>N chemical shifts) show the transition from <jats:italic>trans</jats:italic> to <jats:italic>cis</jats:italic> conformation of [5,6]‐pinenebipyridine upon protonation. The [4,5]‐CHIRAGEN[0] ligand, in which the protonation sites of the nitrogen atom donors are at opposite sides of the molecule, behave essentially like two independent bipyridine moieties; this behaviour was monitored by UV‐visible, CD and NMR spectroscopy (including <jats:sup>15</jats:sup>N data). In the case of the [5,6]‐CHIRAGEN[0], a pocket of donor atoms provides a chiral environment for two protons per ligand.</jats:p> |
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| author | Düggeli, Mathias, Christen, Tobias, von Zelewsky, Alexander |
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| description | <jats:title>Abstract</jats:title><jats:p>Detailed protonation experiments of the [5,6]‐pinenebipyridine molecule and the unsubstituted [4,5]‐ and [5,6]‐CHIRAGEN[0] ligands in various solvents indicate a variety of structures of the protonated species. UV‐visible and NMR measurements (including <jats:sup>15</jats:sup>N chemical shifts) show the transition from <jats:italic>trans</jats:italic> to <jats:italic>cis</jats:italic> conformation of [5,6]‐pinenebipyridine upon protonation. The [4,5]‐CHIRAGEN[0] ligand, in which the protonation sites of the nitrogen atom donors are at opposite sides of the molecule, behave essentially like two independent bipyridine moieties; this behaviour was monitored by UV‐visible, CD and NMR spectroscopy (including <jats:sup>15</jats:sup>N data). In the case of the [5,6]‐CHIRAGEN[0], a pocket of donor atoms provides a chiral environment for two protons per ligand.</jats:p> |
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| spelling | Düggeli, Mathias Christen, Tobias von Zelewsky, Alexander 0947-6539 1521-3765 Wiley General Chemistry Catalysis Organic Chemistry http://dx.doi.org/10.1002/chem.200400295 <jats:title>Abstract</jats:title><jats:p>Detailed protonation experiments of the [5,6]‐pinenebipyridine molecule and the unsubstituted [4,5]‐ and [5,6]‐CHIRAGEN[0] ligands in various solvents indicate a variety of structures of the protonated species. UV‐visible and NMR measurements (including <jats:sup>15</jats:sup>N chemical shifts) show the transition from <jats:italic>trans</jats:italic> to <jats:italic>cis</jats:italic> conformation of [5,6]‐pinenebipyridine upon protonation. The [4,5]‐CHIRAGEN[0] ligand, in which the protonation sites of the nitrogen atom donors are at opposite sides of the molecule, behave essentially like two independent bipyridine moieties; this behaviour was monitored by UV‐visible, CD and NMR spectroscopy (including <jats:sup>15</jats:sup>N data). In the case of the [5,6]‐CHIRAGEN[0], a pocket of donor atoms provides a chiral environment for two protons per ligand.</jats:p> Protonation Behaviour of Chiral Tetradentate Polypyridines Derived from α‐Pinene Chemistry – A European Journal |
| spellingShingle | Düggeli, Mathias, Christen, Tobias, von Zelewsky, Alexander, Chemistry – A European Journal, Protonation Behaviour of Chiral Tetradentate Polypyridines Derived from α‐Pinene, General Chemistry, Catalysis, Organic Chemistry |
| title | Protonation Behaviour of Chiral Tetradentate Polypyridines Derived from α‐Pinene |
| title_full | Protonation Behaviour of Chiral Tetradentate Polypyridines Derived from α‐Pinene |
| title_fullStr | Protonation Behaviour of Chiral Tetradentate Polypyridines Derived from α‐Pinene |
| title_full_unstemmed | Protonation Behaviour of Chiral Tetradentate Polypyridines Derived from α‐Pinene |
| title_short | Protonation Behaviour of Chiral Tetradentate Polypyridines Derived from α‐Pinene |
| title_sort | protonation behaviour of chiral tetradentate polypyridines derived from α‐pinene |
| title_unstemmed | Protonation Behaviour of Chiral Tetradentate Polypyridines Derived from α‐Pinene |
| topic | General Chemistry, Catalysis, Organic Chemistry |
| url | http://dx.doi.org/10.1002/chem.200400295 |