Research on Chemical Intermediates

, Volume 40, Issue 6, pp 2217–2227 | Cite as

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



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 24 were characterized by IR and UV–Vis. The molecular structures of 2 and 3 were determined by X-ray single crystal diffraction.


Dinitrosyl iron complex DNIC Tetranuclear Nitrosyl Nitric oxide 2-Mercaptothiazoline 



We gratefully acknowledge financial support from the National Science Council of Taiwan. The authors thank Dr. Gene-Hsiang Lee for the single-crystal X-ray structural determinations.

Supplementary material

11164_2014_1599_MOESM1_ESM.pdf (191 kb)
Supplementary material 1 (PDF 191 kb)
11164_2014_1599_MOESM2_ESM.pdf (63 kb)
Supplementary material 2 (PDF 63 kb)
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Supplementary material 3 (PDF 48 kb)
11164_2014_1599_MOESM4_ESM.cif (17 kb)
Supplementary material 4 (CIF 17 kb)
11164_2014_1599_MOESM5_ESM.cif (17 kb)
Supplementary material 5 (CIF 17 kb)
11164_2014_1599_MOESM6_ESM.cif (14 kb)
Supplementary material 6 (CIF 14 kb)
11164_2014_1599_MOESM7_ESM.docx (765 kb)
Supplementary material 7 (DOCX 766 kb)


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Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  1. 1.School of Applied ChemistryChung Shan Medical UniversityTaichungTaiwan
  2. 2.Department of Medical EducationChung Shan Medical University HospitalTaichungTaiwan
  3. 3.Department of ChemistryTamkang UniversityNew Taipei CityTaiwan

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