Synthesis, IR-, NMR-, DFT- and X-ray analysis of novel C 2-chiral diferrocenyl-salen complexes

K. Kiss, T. Holczbauer, M. Czugler, P. Sohár, A. Bodor, A. Csámpai

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Chiral salen complexes with C 2-symmetry were prepared by the complexation of a selection of transition metal salts with a novel ligand obtained via controlled diastereoselective diaza-Cope rearrangement of a diimine which was resulted from the condensation 2,2′-[(1R,2R)-1,2-diaminoethane- 1,2-diyl]diphenol with formylferrocene. On the effect of air the iron(II)-complex dissolved in DCM underwent oxidation affording a square pyramidal iron(III)-complex with coordinated chlorine atom in the apical position. It was also found that the two ferrocenyl groups present in the cobalt(II)-complex remained intact in the course of iodine-mediated oxidation leading a diamagnetic cobalt(III)-complex. The structures of the new compounds were established by single crystal x-ray diffraction as well as IR 1H-, 13C- and 15N NMR spectroscopy.

Original languageEnglish
Pages (from-to)46-51
Number of pages6
JournalJournal of Organometallic Chemistry
Volume706-707
DOIs
Publication statusPublished - Jun 1 2012

Fingerprint

ethylenediamine
X ray analysis
Cobalt
Discrete Fourier transforms
cobalt
Iron
Nuclear magnetic resonance
X-Rays
iron
Oxidation
nuclear magnetic resonance
oxidation
Chlorine
synthesis
Complexation
Iodine
Nuclear magnetic resonance spectroscopy
iodine
Transition metals
chlorine

Keywords

  • C -chirality
  • Ferrocene
  • NMR spectroscopy
  • Salen complexes
  • X-ray diffraction

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry
  • Biochemistry

Cite this

Synthesis, IR-, NMR-, DFT- and X-ray analysis of novel C 2-chiral diferrocenyl-salen complexes. / Kiss, K.; Holczbauer, T.; Czugler, M.; Sohár, P.; Bodor, A.; Csámpai, A.

In: Journal of Organometallic Chemistry, Vol. 706-707, 01.06.2012, p. 46-51.

Research output: Contribution to journalArticle

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AU - Holczbauer, T.

AU - Czugler, M.

AU - Sohár, P.

AU - Bodor, A.

AU - Csámpai, A.

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AB - Chiral salen complexes with C 2-symmetry were prepared by the complexation of a selection of transition metal salts with a novel ligand obtained via controlled diastereoselective diaza-Cope rearrangement of a diimine which was resulted from the condensation 2,2′-[(1R,2R)-1,2-diaminoethane- 1,2-diyl]diphenol with formylferrocene. On the effect of air the iron(II)-complex dissolved in DCM underwent oxidation affording a square pyramidal iron(III)-complex with coordinated chlorine atom in the apical position. It was also found that the two ferrocenyl groups present in the cobalt(II)-complex remained intact in the course of iodine-mediated oxidation leading a diamagnetic cobalt(III)-complex. The structures of the new compounds were established by single crystal x-ray diffraction as well as IR 1H-, 13C- and 15N NMR spectroscopy.

KW - C -chirality

KW - Ferrocene

KW - NMR spectroscopy

KW - Salen complexes

KW - X-ray diffraction

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