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Catytic N2 reduction to NH3 by a mononuclear Fe complex

Peters, Jonas C. and Anderson, John S. and Rittle, Jonathan and Creutz, Sidney E. and Suess, Daniel L. M. (2013) Catytic N2 reduction to NH3 by a mononuclear Fe complex. In: 246th ACS National Meeting & Exposition, Sept. 8-12, 2013, Indianapolis, IN.

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Our group has suggested that a hemi-labile role may be played by the interstitial light X-atom of the FeMocofactor, most recently assigned as C. Such a role would enable a high degree of conformational and redox flexibility at a single iron N_2 binding site. In particular, a hemi-labile behavior of the interstitial C-atom would allow an iron binding site to modulate its local geometry by varying its degree of interaction with the C-atom under crude local three-fold symmetry, possibly sampling trigonal bipyramidal, trigonal pyramidal, and/or pseudotetrahedral geometries as a function of the nature of the state of redn. of the nitrogenous ligand. To test these ideas, our group has been exploring a range of 4- and 5-coordinate iron model complexes that exhibit local three-fold symmetry and feature a host of nitrogenous ligands (e.g., N_2, N_2H_4, NH_3, NH_(2-), NR^(2-), N^(3-)) in an axial substrate-binding site trans to a light atom (e.g., B or C). These single-iron site inorg. model complexes show promise for the catalytic redn. of nitrogen to ammonia in the presence of protons and electrons in soln. at low temp. This talk will provide an update on our lab's most recent progress in this area.

Item Type:Conference or Workshop Item (Paper)
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Peters, Jonas C.0000-0002-6610-4414
Alternate Title:Catalytic N2 reduction to NH3 by a mononuclear Fe complex
Additional Information:© 2013 American Chemical Society.
Record Number:CaltechAUTHORS:20131011-132856579
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:41899
Deposited By: Tony Diaz
Deposited On:11 Oct 2013 20:45
Last Modified:26 Nov 2019 11:15

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