Ru(0)-azoimine-carbonyl and Ru(II)-pyridyl-azo-imidazole complexes
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| Title: | Ru(0)-azoimine-carbonyl and Ru(II)-pyridyl-azo-imidazole complexes |
|---|---|
| Authors: | Mathur, T.1, Dinda, J.1, Datta, P.1, Mostafa, G.1, Lu, T.-H.2, Sinha, C.1 c_r_sinha@yahoo.com |
| Source: | Polyhedron. Sep2006, Vol. 25 Issue 13, p2503-2512. 10p. |
| Subjects: | Physical & theoretical chemistry, Imidazoles, Alcohol, Optical polarization |
| Abstract: | Abstract: The reaction of 2-(3′-pyridylazo)imidazole (3′-PyaiH) or its 1-alkyl derivative, 3′-PyaiR, with Ru(CO)3(PPh3)2 has synthesized air stable, moisture insensitive, diamagnetic Ru(0) complexes, [Ru(CO)(3′-PyaiR)(PPh3)2]. The ligands serve as an unsymmetric N,N′-chelating agent (N(imidazole) and N(azo) are abbreviated as N and N′, respectively). The X-ray structure determination of [Ru(CO)(3′-PyaiH)(PPh3)2] shows a square pyramidal geometry. The square plane is made up of Ru, 2P, C(O), N(1), and with N(3) at the apex. Other spectroscopic studies (IR, UV–Vis, NMR) support the stereochemistry. Electrochemistry shows three consecutive anodic peaks (E pa) and suggest irreversible redox responses of Ru(I)/Ru(0), Ru(II)/Ru(I), Ru(III)/Ru(II) and azo reductions. Oxidation by Cl2 of [Ru(CO)(3′-PyaiR)(PPh3)2] has isolated the Ru(II)-complex as the perchlorate salt, [Ru(CO)(Cl)(3′-PyaiR)(PPh3)2](ClO4). A solution of RuCl3 and 3′-PyaiR in ethanol has isolated two isomers of the composition Ru(3′-PyaiR)2Cl2. They have been characterized by spectral and electrochemical data. [Copyright &y& Elsevier] |
| Copyright of Polyhedron is the property of Pergamon Press - An Imprint of Elsevier Science 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: 22148729 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Ru(0)-azoimine-carbonyl and Ru(II)-pyridyl-azo-imidazole complexes – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Mathur%2C+T%2E%22">Mathur, T.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Dinda%2C+J%2E%22">Dinda, J.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Datta%2C+P%2E%22">Datta, P.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Mostafa%2C+G%2E%22">Mostafa, G.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Lu%2C+T%2E-H%2E%22">Lu, T.-H.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Sinha%2C+C%2E%22">Sinha, C.</searchLink><relatesTo>1</relatesTo><i> c_r_sinha@yahoo.com</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Polyhedron%22">Polyhedron</searchLink>. Sep2006, Vol. 25 Issue 13, p2503-2512. 10p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Physical+%26+theoretical+chemistry%22">Physical & theoretical chemistry</searchLink><br /><searchLink fieldCode="DE" term="%22Imidazoles%22">Imidazoles</searchLink><br /><searchLink fieldCode="DE" term="%22Alcohol%22">Alcohol</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+polarization%22">Optical polarization</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: The reaction of 2-(3′-pyridylazo)imidazole (3′-PyaiH) or its 1-alkyl derivative, 3′-PyaiR, with Ru(CO)3(PPh3)2 has synthesized air stable, moisture insensitive, diamagnetic Ru(0) complexes, [Ru(CO)(3′-PyaiR)(PPh3)2]. The ligands serve as an unsymmetric N,N′-chelating agent (N(imidazole) and N(azo) are abbreviated as N and N′, respectively). The X-ray structure determination of [Ru(CO)(3′-PyaiH)(PPh3)2] shows a square pyramidal geometry. The square plane is made up of Ru, 2P, C(O), N(1), and with N(3) at the apex. Other spectroscopic studies (IR, UV–Vis, NMR) support the stereochemistry. Electrochemistry shows three consecutive anodic peaks (E pa) and suggest irreversible redox responses of Ru(I)/Ru(0), Ru(II)/Ru(I), Ru(III)/Ru(II) and azo reductions. Oxidation by Cl2 of [Ru(CO)(3′-PyaiR)(PPh3)2] has isolated the Ru(II)-complex as the perchlorate salt, [Ru(CO)(Cl)(3′-PyaiR)(PPh3)2](ClO4). A solution of RuCl3 and 3′-PyaiR in ethanol has isolated two isomers of the composition Ru(3′-PyaiR)2Cl2. They have been characterized by spectral and electrochemical data. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Polyhedron is the property of Pergamon Press - An Imprint of Elsevier Science 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.poly.2006.02.018 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 2503 Subjects: – SubjectFull: Physical & theoretical chemistry Type: general – SubjectFull: Imidazoles Type: general – SubjectFull: Alcohol Type: general – SubjectFull: Optical polarization Type: general Titles: – TitleFull: Ru(0)-azoimine-carbonyl and Ru(II)-pyridyl-azo-imidazole complexes Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Mathur, T. – PersonEntity: Name: NameFull: Dinda, J. – PersonEntity: Name: NameFull: Datta, P. – PersonEntity: Name: NameFull: Mostafa, G. – PersonEntity: Name: NameFull: Lu, T.-H. – PersonEntity: Name: NameFull: Sinha, C. IsPartOfRelationships: – BibEntity: Dates: – D: 11 M: 09 Text: Sep2006 Type: published Y: 2006 Identifiers: – Type: issn-print Value: 02775387 Numbering: – Type: volume Value: 25 – Type: issue Value: 13 Titles: – TitleFull: Polyhedron Type: main |
| ResultId | 1 |
