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Iron complexes of a tris(phosphino)borane ligand as nitrogenase models

Moret, Marc-Etienne and Peters, Jonas C. (2011) Iron complexes of a tris(phosphino)borane ligand as nitrogenase models. Abstracts of Papers of the American Chemical Society, 241 . INOR 935. ISSN 0065-7727 . https://resolver.caltech.edu/CaltechAUTHORS:20140801-104434319

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Abstract

Biol. dinitrogen fixation - i.e. The redn. of N_2 to two equiv. of ammonia by addn. of protons and electrons - is thought to proceed through initial coordination of N_2 to one or more iron centers of the nitrogenase MoFe cofactor. To shed light on the mechanism of this transformation, a no. of model compds. have previously been prepd. that mimic the trigonal environment of the iron center in the MoFe cofactor by enforcing either pseudotetrahedral (PT) or trigonal-bipyramidal (TBP) geometry with robust phosphine-based multidentate ligands. In this contribution, we show that both geometries can be accessed in ferraboratranes derived from a tris(phosphino)borane ligands. In particular, we describe terminal iron-N_2 complexes that exhibit a TBP geometry as well as PT compds. with a Fe≡NR triple bond. Efforts towards the functionalization of the ironbound dinitrogen mol. are also discussed.


Item Type:Article
Additional Information:© 2011 American Chemical Society.
Record Number:CaltechAUTHORS:20140801-104434319
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140801-104434319
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:47786
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:01 Aug 2014 17:47
Last Modified:03 Oct 2019 06:56

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