Kanady, Jacob S. and Lin, Po-Heng and Tsui, Emily Y. and Agapie, Theodor (2014) Synthetic strategies towards a Mn_4CaO_n model complex of the oxygen-evolving complex of photosystem II. In: 248th American Chemical Society National Meeting & Exposition, August 10-14, 2014, San Francisco, CA. https://resolver.caltech.edu/CaltechAUTHORS:20140811-153741693
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Abstract
The oxygen-evolving complex (OEC) of photosystem II is a Mn_4CaO_5 heterometallic cluster. In the past, we synthesized a structural model (1) of the Mn_3CaO_4 subsite of the OEC using a hexapyridyl, trialkoxide ligand. Addn. of the fourth, dangling manganese has been targeted to more fully mimic the structure of the OEC. The original complex 1, stabilized across three faces of the cubane by carboxylates, has been desymmetrized using a chelating bisoximate ligand by replacing two of the κ2-carboxylates. The properties and reactivity of the desymmetrized Mn_3CaO_4 complex has been compared to the original, pseudo-C3 sym. cluster, and its redox and acid/base chem. has been studied, as both are pertinent to the OEC mechanism. Strategies for synthesizing a Mn_4CaO-_n(n=4, 5) OEC model from the new, desymmetrized complex will be discussed.
| Item Type: | Conference or Workshop Item (Paper) | ||||||
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| Alternate Title: | Synthetic strategies towards a Mn4CaOn model complex of the oxygen-evolving complex of photosystem II | ||||||
| Additional Information: | © 2014 American Chemical Society. | ||||||
| Record Number: | CaltechAUTHORS:20140811-153741693 | ||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20140811-153741693 | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 48356 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | Tony Diaz | ||||||
| Deposited On: | 11 Aug 2014 23:19 | ||||||
| Last Modified: | 09 Mar 2020 13:19 |
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