Heterometallic ferrocene-rhenium complexes linked by an aminoethylglycine scaffold

Lauren A. Levine, Srećko I. Kirin, Carl P. Myers, Scott A. Showalter, Mary Elizabeth Williams

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Using mono- and 1,n′-disubstituted ferrocenecarboxylic acid, the aminoethylglycine (aeg) derivatives Fe[C5H4-CO-aeg-OtBu] [C5H5] (1) and Fe[C5H4-CO-aeg-OtBu] 2 (2) have been synthesized. Complexes 1 and 2 are further reacted to substitute the aeg with the nitrogen-containing ligands dpa-ph-CO2H or py-AcOH to yield complexes 3-6. Each of these is treated with Re(CO) 5Cl to assemble heterometallic structures 3Re-6 Re. These are subsequently isolated and characterized by NMR and mass spectrometry, FTIR, UV/Vis absorbance, and fluorescence emission spectroscopy, and separately by electrochemistry. All of the compounds exhibit the characteristic redox properties of the ferrocene moiety; in the heterometallic compounds, an irreversible oxidative wave is attributed to the Re. The electrochemically determined diffusion coefficients of the compounds confirm that the as-prepared structures are discrete assemblies and not coordination polymers.

Original languageEnglish (US)
Pages (from-to)613-621
Number of pages9
JournalEuropean Journal of Inorganic Chemistry
Issue number5
DOIs
StatePublished - Feb 19 2009

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Rhenium
Carbon Monoxide
Scaffolds
Fluorescence spectroscopy
Emission spectroscopy
Electrochemistry
Mass spectrometry
Polymers
Nitrogen
Nuclear magnetic resonance
Ligands
Derivatives
ferrocene

All Science Journal Classification (ASJC) codes

  • Inorganic Chemistry

Cite this

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title = "Heterometallic ferrocene-rhenium complexes linked by an aminoethylglycine scaffold",
abstract = "Using mono- and 1,n′-disubstituted ferrocenecarboxylic acid, the aminoethylglycine (aeg) derivatives Fe[C5H4-CO-aeg-OtBu] [C5H5] (1) and Fe[C5H4-CO-aeg-OtBu] 2 (2) have been synthesized. Complexes 1 and 2 are further reacted to substitute the aeg with the nitrogen-containing ligands dpa-ph-CO2H or py-AcOH to yield complexes 3-6. Each of these is treated with Re(CO) 5Cl to assemble heterometallic structures 3Re-6 Re. These are subsequently isolated and characterized by NMR and mass spectrometry, FTIR, UV/Vis absorbance, and fluorescence emission spectroscopy, and separately by electrochemistry. All of the compounds exhibit the characteristic redox properties of the ferrocene moiety; in the heterometallic compounds, an irreversible oxidative wave is attributed to the Re. The electrochemically determined diffusion coefficients of the compounds confirm that the as-prepared structures are discrete assemblies and not coordination polymers.",
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Heterometallic ferrocene-rhenium complexes linked by an aminoethylglycine scaffold. / Levine, Lauren A.; Kirin, Srećko I.; Myers, Carl P.; Showalter, Scott A.; Williams, Mary Elizabeth.

In: European Journal of Inorganic Chemistry, No. 5, 19.02.2009, p. 613-621.

Research output: Contribution to journalArticle

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AU - Levine, Lauren A.

AU - Kirin, Srećko I.

AU - Myers, Carl P.

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AU - Williams, Mary Elizabeth

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N2 - Using mono- and 1,n′-disubstituted ferrocenecarboxylic acid, the aminoethylglycine (aeg) derivatives Fe[C5H4-CO-aeg-OtBu] [C5H5] (1) and Fe[C5H4-CO-aeg-OtBu] 2 (2) have been synthesized. Complexes 1 and 2 are further reacted to substitute the aeg with the nitrogen-containing ligands dpa-ph-CO2H or py-AcOH to yield complexes 3-6. Each of these is treated with Re(CO) 5Cl to assemble heterometallic structures 3Re-6 Re. These are subsequently isolated and characterized by NMR and mass spectrometry, FTIR, UV/Vis absorbance, and fluorescence emission spectroscopy, and separately by electrochemistry. All of the compounds exhibit the characteristic redox properties of the ferrocene moiety; in the heterometallic compounds, an irreversible oxidative wave is attributed to the Re. The electrochemically determined diffusion coefficients of the compounds confirm that the as-prepared structures are discrete assemblies and not coordination polymers.

AB - Using mono- and 1,n′-disubstituted ferrocenecarboxylic acid, the aminoethylglycine (aeg) derivatives Fe[C5H4-CO-aeg-OtBu] [C5H5] (1) and Fe[C5H4-CO-aeg-OtBu] 2 (2) have been synthesized. Complexes 1 and 2 are further reacted to substitute the aeg with the nitrogen-containing ligands dpa-ph-CO2H or py-AcOH to yield complexes 3-6. Each of these is treated with Re(CO) 5Cl to assemble heterometallic structures 3Re-6 Re. These are subsequently isolated and characterized by NMR and mass spectrometry, FTIR, UV/Vis absorbance, and fluorescence emission spectroscopy, and separately by electrochemistry. All of the compounds exhibit the characteristic redox properties of the ferrocene moiety; in the heterometallic compounds, an irreversible oxidative wave is attributed to the Re. The electrochemically determined diffusion coefficients of the compounds confirm that the as-prepared structures are discrete assemblies and not coordination polymers.

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