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Probing Hydrogen Bonding Interactions to Iron-Oxido/Hydroxido Units by 57 Fe Nuclear Resonance Vibrational Spectroscopy.
Weitz, Andrew C; Hill, Ethan A; Oswald, Victoria F; Bominaar, Emile L; Borovik, Andrew S; Hendrich, Michael P; Guo, Yisong.
Afiliación
  • Weitz AC; Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, 15213, USA.
  • Hill EA; Department of Chemistry, University of California, Irvine, CA, 92697, USA.
  • Oswald VF; Department of Chemistry, University of California, Irvine, CA, 92697, USA.
  • Bominaar EL; Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, 15213, USA.
  • Borovik AS; Department of Chemistry, University of California, Irvine, CA, 92697, USA.
  • Hendrich MP; Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, 15213, USA.
  • Guo Y; Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, 15213, USA.
Angew Chem Int Ed Engl ; 57(49): 16010-16014, 2018 12 03.
Article en En | MEDLINE | ID: mdl-30353620
Hydrogen bonds (H-bonds) have been shown to modulate the chemical reactivities of iron centers in iron-containing dioxygen-activating enzymes and model complexes. However, few examples are available that investigate how systematic changes in intramolecular H-bonds within the secondary coordination sphere influence specific properties of iron intermediates, such as iron-oxido/hydroxido species. Here, we used 57 Fe nuclear resonance vibrational spectroscopy (NRVS) to probe the Fe-O/OH vibrations in a series of FeIII -hydroxido and FeIV/III -oxido complexes with varying H-bonding networks but having similar trigonal bipyramidal primary coordination spheres. The data show that even subtle changes in the H-bonds to the Fe-O/OH units result in significant changes in their vibrational frequencies, thus demonstrating the utility of NRVS in studying the effect of the secondary coordination sphere to the reactivities of iron complexes.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Óxidos / Compuestos de Hierro / Hidróxidos Idioma: En Revista: Angew Chem Int Ed Engl Año: 2018 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Alemania
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Óxidos / Compuestos de Hierro / Hidróxidos Idioma: En Revista: Angew Chem Int Ed Engl Año: 2018 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Alemania