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Scorpionate Ligands Basedon 2-Mercaptopyridine: ALigand with a Greater Propensity To Sting?

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Title: Scorpionate Ligands Basedon 2-Mercaptopyridine: ALigand with a Greater Propensity To Sting?
Authors: Gavin Dyson1, Alexander Zech1, Benjamin W. Rawe1, MairiF. Haddow1, Alexander Hamilton1, Gareth R. Owen1
Source: Organometallics. Nov2011, Vol. 30 Issue 21, p5844-5850. 7p.
Subjects: Complex compounds synthesis, Scorpionates, Ligands (Chemistry), Metal complexes, Platinum group, Rhodium, Reactivity (Chemistry)
Abstract: The synthesis and characterization of the first platinumgroupmetal complexes of the recently reported ligand [H2B(mp)2]−(where mp = 2-mercaptopyridyl) are presentedherein. Addition of 2 equiv of Na[H2B(mp)2]to [MCl(COD)]2(where M = Rh, Ir; COD = 1,5-cyclooctadiene)leads to the hydride migration products [Rh{κ3-SSB-BH(mp)2}(η3-C8H13)] and [Ir(H){κ3-SSB-BH(mp)2}(η4-C8H12)], respectively. Structural characterization of the rhodium complexreveals a notably short rhodium–boron distance of 2.054(2)Å. The reactivity observed for the rhodium complex is differentfrom that of all known scorpionate ligands, suggesting a higher propensityfor hydride migration within the 2-mercaptopyridine-based ligands.The complex [Ir(Cl){κ3-SSB-BH(mp)2}(η4-C8H12)], whichis formed via hydride/halide exchange in chloroform, is also structurallycharacterized. The new complexes provide rare examples of metallaboratranecomplexes where one hydrogen substituent remains at the boron center. [ABSTRACT FROM AUTHOR]
Copyright of Organometallics is the property of American Chemical Society 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.)
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An: 67086038
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  Data: <searchLink fieldCode="DE" term="%22Complex+compounds+synthesis%22">Complex compounds synthesis</searchLink><br /><searchLink fieldCode="DE" term="%22Scorpionates%22">Scorpionates</searchLink><br /><searchLink fieldCode="DE" term="%22Ligands+%28Chemistry%29%22">Ligands (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Metal+complexes%22">Metal complexes</searchLink><br /><searchLink fieldCode="DE" term="%22Platinum+group%22">Platinum group</searchLink><br /><searchLink fieldCode="DE" term="%22Rhodium%22">Rhodium</searchLink><br /><searchLink fieldCode="DE" term="%22Reactivity+%28Chemistry%29%22">Reactivity (Chemistry)</searchLink>
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  Data: The synthesis and characterization of the first platinumgroupmetal complexes of the recently reported ligand [H2B(mp)2]−(where mp = 2-mercaptopyridyl) are presentedherein. Addition of 2 equiv of Na[H2B(mp)2]to [MCl(COD)]2(where M = Rh, Ir; COD = 1,5-cyclooctadiene)leads to the hydride migration products [Rh{κ3-SSB-BH(mp)2}(η3-C8H13)] and [Ir(H){κ3-SSB-BH(mp)2}(η4-C8H12)], respectively. Structural characterization of the rhodium complexreveals a notably short rhodium–boron distance of 2.054(2)Å. The reactivity observed for the rhodium complex is differentfrom that of all known scorpionate ligands, suggesting a higher propensityfor hydride migration within the 2-mercaptopyridine-based ligands.The complex [Ir(Cl){κ3-SSB-BH(mp)2}(η4-C8H12)], whichis formed via hydride/halide exchange in chloroform, is also structurallycharacterized. The new complexes provide rare examples of metallaboratranecomplexes where one hydrogen substituent remains at the boron center. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Organometallics is the property of American Chemical Society 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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        Value: 10.1021/om200694r
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        Text: English
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        Type: general
      – SubjectFull: Scorpionates
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      – SubjectFull: Ligands (Chemistry)
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      – SubjectFull: Rhodium
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      – SubjectFull: Reactivity (Chemistry)
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      – TitleFull: Scorpionate Ligands Basedon 2-Mercaptopyridine: ALigand with a Greater Propensity To Sting?
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              Text: Nov2011
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              Y: 2011
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