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Heterometallic effects in tetrametallic triiron clusters

Lionetti, Davide and Herbert, David E. and Rittle, Jonathan and Agapie, Theodor (2014) Heterometallic effects in tetrametallic triiron clusters. In: 248th American Chemical Society National Meeting & Exposition, August 10-14, 2014, San Francisco, CA. http://resolver.caltech.edu/CaltechAUTHORS:20140812-125655020

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Abstract

Heterometallic effects in metal-oxide clusters are of interest because of their relevance to both natural systems (heterometallic enzymic active sites such as Photosystem II) and artificial materials (mixed-metal oxide catalysts for energy conversion reactions such as dioxygen redn. and water oxidn.). In particular, the influence of Lewis acidic, redox-inactive metal centers on redox processes in many such systems is not fully understood. To gain insight into how redox-active metal clusters are modulated by redox-inactive metal centers, a series of tetranuclear oxo/hydroxo clusters were prepd. comprised of three Fe centers and a redox-inactive metal (M). These clusters were found to contain a Fe_3M(μ_4-O)(μ_2-OH) core (M = Ca, Sr, Zn, La, Sc), and were characterized by single-crystal X-ray diffraction, Mossbauer spectroscopy, and cyclic voltammetry. The effects of the redox-inactive metal centers on the properties and reactivity of these tetranuclear clusters will be discussed.


Item Type:Conference or Workshop Item (Paper)
Related URLs:
URLURL TypeDescription
http://www.acs.org/content/acs/en/meetings/fall-2014.htmlOrganizationConference Website
ORCID:
AuthorORCID
Agapie, Theodor0000-0002-9692-7614
Additional Information:© 2014 American Chemical Society.
Record Number:CaltechAUTHORS:20140812-125655020
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20140812-125655020
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:48399
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:12 Aug 2014 20:00
Last Modified:05 May 2017 20:20

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