期刊
POLYHEDRON
卷 58, 期 -, 页码 179-189出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.poly.2013.01.043
关键词
Bis(imino)pyridine; Sulfide; Iron(II); Dioxygen; Non-heme Iron; Model Complexes
资金
- NIH [GM62309]
The unsymmetrical iron(II) bis(imino)pyridine complexes [Fe-II(LN3SMe)(H2O)(3)](OTf)(2) (1), and [Fe-II(LN3SMe)Cl-2] (2) were synthesized and their reactivity with O-2 was examined. Complexes 1 and 2 were characterized by single crystal X-ray crystallography, LDI-MS, H-1 NMR and elemental analysis. The LN3SMe ligand was designed to incorporate a single sulfide donor and relies on the bis(imino)pyridine scaffold. This scaffold was selected for its ease of synthesis and its well-precedented ability to stabilize Fe(II) ions. Complexes 1 and 2 ware prepared via a metal-assisted template reaction from the unsymmetrical pyridyl ketone precursor 2-(O=CMe)-6-(2,6-(Pr-i(2)-C6H3N=CMe)-C5H3N. Reaction of 1 with O-2 was shown to afford the S-oxygenated sulfoxide complex [Fe(LN3S(O)Me)(OTf)](2+) (3), whereas compound 2, under the same reaction conditions, afforded the corresponding sulfone complex [Fe(LN3S(O-2)Me)Cl](2+) (4). (C) 2013 Elsevier Ltd. All rights reserved.
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