Iron(II) complexes based on electron-rich, bulky PNN- and PNP-type ligands

Jing Zhang, Mark Gandelman, Dominik Herrman, Gregory Leitus, Linda J W Shimon, Yehoshoa Ben-David, David Milstein

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

Reaction of the PNN ligand ((2-(di-tert-butylphosphinomethyl)-6- diethylaminomethyl)pyridine) with 1 equiv. of anhydrous FeCl2 in THF results in the formation of (PNN)FeCl2 (1). The cationic complex [(PNN)Fe(THF)Cl](PF6) (2) was obtained by chloride abstraction from 1 with 1 equiv. of TlPF6. Similarly, the PNP-type complexes 3 and 4 were obtained from FeCl2 with 1 equiv. of t-Bu-PNP (2,6-bis(di-tert-butylphosphinomethyl)pyridine) and i-Pr-PNP (2,6-bis(di-iso-propylphosphinomethyl)pyridine), respectively. Complexes 1 and 3 were characterized by X-ray diffraction and elemental analyses. In both structures the Fe(II) centers exhibit a distorted square pyramidal geometry comprising two chloride ligands and one tridentate PNN or PNP ligand. The magnetic properties of the paramagnetic complexes 1-4 are discussed.

Original languageEnglish
Pages (from-to)1955-1960
Number of pages6
JournalInorganica Chimica Acta
Volume359
Issue number6
DOIs
Publication statusPublished - Apr 10 2006

Fingerprint

Pyridine
pyridines
Iron
Ligands
Electrons
iron
ligands
Chlorides
chlorides
electrons
X-Ray Diffraction
Magnetic properties
magnetic properties
X ray diffraction
Geometry
geometry
diffraction
pyridine
x rays

Keywords

  • Iron complexes
  • Magnetic properties
  • Paramagnetic
  • PNN ligand
  • PNP ligand
  • X-ray crystal structures

ASJC Scopus subject areas

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

Cite this

Zhang, J., Gandelman, M., Herrman, D., Leitus, G., Shimon, L. J. W., Ben-David, Y., & Milstein, D. (2006). Iron(II) complexes based on electron-rich, bulky PNN- and PNP-type ligands. Inorganica Chimica Acta, 359(6), 1955-1960. https://doi.org/10.1016/j.ica.2005.11.039

Iron(II) complexes based on electron-rich, bulky PNN- and PNP-type ligands. / Zhang, Jing; Gandelman, Mark; Herrman, Dominik; Leitus, Gregory; Shimon, Linda J W; Ben-David, Yehoshoa; Milstein, David.

In: Inorganica Chimica Acta, Vol. 359, No. 6, 10.04.2006, p. 1955-1960.

Research output: Contribution to journalArticle

Zhang, J, Gandelman, M, Herrman, D, Leitus, G, Shimon, LJW, Ben-David, Y & Milstein, D 2006, 'Iron(II) complexes based on electron-rich, bulky PNN- and PNP-type ligands', Inorganica Chimica Acta, vol. 359, no. 6, pp. 1955-1960. https://doi.org/10.1016/j.ica.2005.11.039
Zhang J, Gandelman M, Herrman D, Leitus G, Shimon LJW, Ben-David Y et al. Iron(II) complexes based on electron-rich, bulky PNN- and PNP-type ligands. Inorganica Chimica Acta. 2006 Apr 10;359(6):1955-1960. https://doi.org/10.1016/j.ica.2005.11.039
Zhang, Jing ; Gandelman, Mark ; Herrman, Dominik ; Leitus, Gregory ; Shimon, Linda J W ; Ben-David, Yehoshoa ; Milstein, David. / Iron(II) complexes based on electron-rich, bulky PNN- and PNP-type ligands. In: Inorganica Chimica Acta. 2006 ; Vol. 359, No. 6. pp. 1955-1960.
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N2 - Reaction of the PNN ligand ((2-(di-tert-butylphosphinomethyl)-6- diethylaminomethyl)pyridine) with 1 equiv. of anhydrous FeCl2 in THF results in the formation of (PNN)FeCl2 (1). The cationic complex [(PNN)Fe(THF)Cl](PF6) (2) was obtained by chloride abstraction from 1 with 1 equiv. of TlPF6. Similarly, the PNP-type complexes 3 and 4 were obtained from FeCl2 with 1 equiv. of t-Bu-PNP (2,6-bis(di-tert-butylphosphinomethyl)pyridine) and i-Pr-PNP (2,6-bis(di-iso-propylphosphinomethyl)pyridine), respectively. Complexes 1 and 3 were characterized by X-ray diffraction and elemental analyses. In both structures the Fe(II) centers exhibit a distorted square pyramidal geometry comprising two chloride ligands and one tridentate PNN or PNP ligand. The magnetic properties of the paramagnetic complexes 1-4 are discussed.

AB - Reaction of the PNN ligand ((2-(di-tert-butylphosphinomethyl)-6- diethylaminomethyl)pyridine) with 1 equiv. of anhydrous FeCl2 in THF results in the formation of (PNN)FeCl2 (1). The cationic complex [(PNN)Fe(THF)Cl](PF6) (2) was obtained by chloride abstraction from 1 with 1 equiv. of TlPF6. Similarly, the PNP-type complexes 3 and 4 were obtained from FeCl2 with 1 equiv. of t-Bu-PNP (2,6-bis(di-tert-butylphosphinomethyl)pyridine) and i-Pr-PNP (2,6-bis(di-iso-propylphosphinomethyl)pyridine), respectively. Complexes 1 and 3 were characterized by X-ray diffraction and elemental analyses. In both structures the Fe(II) centers exhibit a distorted square pyramidal geometry comprising two chloride ligands and one tridentate PNN or PNP ligand. The magnetic properties of the paramagnetic complexes 1-4 are discussed.

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