کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1307083 | 975119 | 2009 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Solid-state and proton NMR characterization of an iron(II) complex of a tridentate, facially coordinating N,N,O donor ligand Solid-state and proton NMR characterization of an iron(II) complex of a tridentate, facially coordinating N,N,O donor ligand](/preview/png/1307083.png)
Despite the many enzymes that use 2-His-1-carboxylate facial triads to bind iron(II), there are few crystallographically characterized synthetic iron(II) complexes of tridentate ligands that bind through two imidazoles and one carboxylate. We report 1H NMR characterization of the equilibrium between one such ligand and aqueous Fe2+. The formation of 1:1 and 2:1 complexes is evident, but the 1:1 complex is never the exclusive compound in solution. This behavior has not been reported previously for N,N,O ligand–iron(II) complexes. The 2:1 ligand/iron complex crystallizes from solution, and it has been completely characterized including an X-ray crystal structure.
Despite the many enzymes that use 2-His-1-carboxylate facial triads to bind iron(II), there are few crystallographically characterized synthetic iron(II) complexes of tridentate ligands that bind through two imidazoles and one carboxylate. We report 1H NMR characterization of the equilibrium between one such ligand and aqueous Fe2+, as well as full characterization of the isolated 2:1 complex.Figure optionsDownload as PowerPoint slide
Journal: Inorganica Chimica Acta - Volume 362, Issue 4, 2 March 2009, Pages 1387–1390