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Synthesis and structural characterization of new multi-ferrocenyl pyridine derivatives.

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Title: Synthesis and structural characterization of new multi-ferrocenyl pyridine derivatives.
Authors: Wang, Ya-Qi1, Han, Li-Min1, Suo, Quan-Ling1 szj010062@163.com, Zhu, Ning1, Li, Fa-Wang1
Source: Polyhedron. Mar2014, Vol. 71, p42-46. 5p.
Subjects: Pyridine derivatives, Pyridine synthesis, Chemical structure, Methylpyridine, Ring formation (Chemistry), X-ray diffraction
Abstract: Abstract: A series of new multi-ferrocenyl substituted pyridine derivatives, 4,6-diferrocenyl-3,5-diferrocenylethynyl-2-methylpyridine (1), 3,6-diferrocenyl-4,5-diferrocenylethynyl-2-phenylpyridine (2), 4,6-diferrocenyl-3,5-diferrocenylethynyl-2-phenylpyridine (3), 3,5-diferrocenyl-4,6-diferrocenylethynyl-2-phenylpyridine (4) were synthesized by dicarbonylcyclopentadienylcobalt mediated [2+2+2] cycloaddition reaction. The molecular composition and structure of compounds 1–4 were characterized by FT-IR, NMR, MS, CV and Elemental analysis. The molecular and crystal structure of compound 1 was determined by X-ray single crystal diffraction analysis. The cyclic voltammetry and square wave voltammetry highlight the electrochemical behaviors of compounds 1–4, which indicates multi-step reversible redox processes of ferrocenyl moieties have occurred. The wave splitting and ΔE 1/2 (oxidation potential difference) values of 1–4 were carefully analyzed, which reveals that the interactions between the ferrocenyl units of 1–4 are related to their molecular structures. The molecular structures of isomers 2–4 have been identified by their electrochemical properties and spectroscopic information. [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
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Header DbId: egs
DbLabel: Engineering Source
An: 94578356
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Synthesis and structural characterization of new multi-ferrocenyl pyridine derivatives.
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  Data: <searchLink fieldCode="JN" term="%22Polyhedron%22">Polyhedron</searchLink>. Mar2014, Vol. 71, p42-46. 5p.
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  Data: <searchLink fieldCode="DE" term="%22Pyridine+derivatives%22">Pyridine derivatives</searchLink><br /><searchLink fieldCode="DE" term="%22Pyridine+synthesis%22">Pyridine synthesis</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+structure%22">Chemical structure</searchLink><br /><searchLink fieldCode="DE" term="%22Methylpyridine%22">Methylpyridine</searchLink><br /><searchLink fieldCode="DE" term="%22Ring+formation+%28Chemistry%29%22">Ring formation (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+diffraction%22">X-ray diffraction</searchLink>
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  Data: Abstract: A series of new multi-ferrocenyl substituted pyridine derivatives, 4,6-diferrocenyl-3,5-diferrocenylethynyl-2-methylpyridine (1), 3,6-diferrocenyl-4,5-diferrocenylethynyl-2-phenylpyridine (2), 4,6-diferrocenyl-3,5-diferrocenylethynyl-2-phenylpyridine (3), 3,5-diferrocenyl-4,6-diferrocenylethynyl-2-phenylpyridine (4) were synthesized by dicarbonylcyclopentadienylcobalt mediated [2+2+2] cycloaddition reaction. The molecular composition and structure of compounds 1–4 were characterized by FT-IR, NMR, MS, CV and Elemental analysis. The molecular and crystal structure of compound 1 was determined by X-ray single crystal diffraction analysis. The cyclic voltammetry and square wave voltammetry highlight the electrochemical behaviors of compounds 1–4, which indicates multi-step reversible redox processes of ferrocenyl moieties have occurred. The wave splitting and ΔE 1/2 (oxidation potential difference) values of 1–4 were carefully analyzed, which reveals that the interactions between the ferrocenyl units of 1–4 are related to their molecular structures. The molecular structures of isomers 2–4 have been identified by their electrochemical properties and spectroscopic information. [Copyright &y& Elsevier]
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  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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        Value: 10.1016/j.poly.2014.01.006
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              Text: Mar2014
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