A new member of tetranuclear dinitrosyl iron complexes (DNICs) with 2-mercaptothiazoline ligand: synthesis, structure and properties

A new member of tetranuclear dinitrosyl iron complexes (DNICs) with 2-mercaptothiazoline ligand:... A new tetranuclear dinitrosyliron complex [(μ-SC3H4SN)Fe(NO)2]4 (2), each of a Fe center coordinated with two S or two N, was prepared by CO replacement from the reduced precursor (CO)2Fe(NO)2 with 1 equiv of HSC3H4SN (2-mercaptothiazoline) in the presence of O2(g). The structure of 2 is similar to [(Imid-iPr)Fe(NO)2]4 (Imid-iPr = 2-isopropylimidazole) (Hess et al. J Am Chem Soc 133:20426–20434, 2011), and both complexes comprise a quadrilateral plane of irons with corresponding ligands, SC3H4SN− or Imid-iPr−, bridging the edges and two nitrosyl ligands capping the irons at the corners. An additional equiv of SC3H4SN− was added to 2, which results in the mononuclear {Fe(NO)2}9 (SC3H4SN)2Fe(NO) 2 − (3), in the manner of N bound-[SC3H4SN]. Reaction of (TMEDA)IFe(NO)2 (TMEDA = tetramethylethylenediamine) and complex 3 leads to the formation of complex 2. Dinuclear complex [(μ-C5H7N2)Fe(NO)2]2 (4) can be synthesized by the ligand displacement of SC3H4SN− to C5H7N2 − (3,5-dimethylpyrazolate) of 2 (Chong et al. Can J Chem 57:3119–3125, 1979). Complexes 2–4 were characterized by IR and UV–Vis. The molecular structures of 2 and 3 were determined by X-ray single crystal diffraction. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

A new member of tetranuclear dinitrosyl iron complexes (DNICs) with 2-mercaptothiazoline ligand: synthesis, structure and properties

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Publisher
Springer Journals
Copyright
Copyright © 2014 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-014-1599-4
Publisher site
See Article on Publisher Site

Abstract

A new tetranuclear dinitrosyliron complex [(μ-SC3H4SN)Fe(NO)2]4 (2), each of a Fe center coordinated with two S or two N, was prepared by CO replacement from the reduced precursor (CO)2Fe(NO)2 with 1 equiv of HSC3H4SN (2-mercaptothiazoline) in the presence of O2(g). The structure of 2 is similar to [(Imid-iPr)Fe(NO)2]4 (Imid-iPr = 2-isopropylimidazole) (Hess et al. J Am Chem Soc 133:20426–20434, 2011), and both complexes comprise a quadrilateral plane of irons with corresponding ligands, SC3H4SN− or Imid-iPr−, bridging the edges and two nitrosyl ligands capping the irons at the corners. An additional equiv of SC3H4SN− was added to 2, which results in the mononuclear {Fe(NO)2}9 (SC3H4SN)2Fe(NO) 2 − (3), in the manner of N bound-[SC3H4SN]. Reaction of (TMEDA)IFe(NO)2 (TMEDA = tetramethylethylenediamine) and complex 3 leads to the formation of complex 2. Dinuclear complex [(μ-C5H7N2)Fe(NO)2]2 (4) can be synthesized by the ligand displacement of SC3H4SN− to C5H7N2 − (3,5-dimethylpyrazolate) of 2 (Chong et al. Can J Chem 57:3119–3125, 1979). Complexes 2–4 were characterized by IR and UV–Vis. The molecular structures of 2 and 3 were determined by X-ray single crystal diffraction.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Mar 30, 2014

References

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