De Ruiter, Graham and Thompson, Niklas B. and Agapie, Theodor (2015) Redox-state effects on small molecule bin multimetallic iron complexes. In: 250th American Chemical Society National Meeting & Exposition, August 16-20, 2015, Boston, MA. https://resolver.caltech.edu/CaltechAUTHORS:20150923-082335334
Full text is not posted in this repository. Consult Related URLs below.
Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20150923-082335334
Abstract
The biochem. processing of a variety of small mols. including H_2, N_2, CO_2, CO and NO_x requires complex machinery. Metalloenzymes are highly specialized in such transformations, and often employ multi-metal cooperativity. Controlling, rationally, the assembly of multiple metals into a single synthetic framework remains a challenge. Furthermore, understanding multi-metal cooperativity and esp. the role that different redox-states play in small mol. activation is of fundamental importance. As such, we have shown previously how redoxinactive metals influence the redn. potential in different hetero-metallic clusters. Here we present a new class of tetra-iron complexes that are site differentiated, with three iron centers that are six-coordinate and one unique four-coordinate iron center. We show that nitric oxide (NO) is able to bind at the unique iron center and, subsequently, the NO binding was investigated as a function of the redox-state of the metal cluster. Structural and spectroscopic characterization indicates that the change in redox-states occurs at a distal site of the metal cluster, and the obsd. distal redox-modulation is responsible for the different degree of NO activation.
Item Type: | Conference or Workshop Item (Paper) | ||||||
---|---|---|---|---|---|---|---|
Related URLs: |
| ||||||
ORCID: |
| ||||||
Additional Information: | © 2015 American Chemical Society. | ||||||
Record Number: | CaltechAUTHORS:20150923-082335334 | ||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20150923-082335334 | ||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
ID Code: | 60434 | ||||||
Collection: | CaltechAUTHORS | ||||||
Deposited By: | Tony Diaz | ||||||
Deposited On: | 23 Sep 2015 19:49 | ||||||
Last Modified: | 03 Oct 2019 08:57 |
Repository Staff Only: item control page