Heterolytic H_2 Activation Mediated by Low-Coordinate L_3Fe-(µ-N)-FeL_3 Complexes to Generate Fe(µ-NH)(µ-H)Fe Species
Abstract
The diiron μ-nitride complexes, {L_3Fe^(II)(μ-N)Fe^(II)L_3}- and L_3Fe^(III)(μ-N)Fe^(II)L_3, heterolytically activate hydrogen (1 atm) at ambient temperature in solution (L_3 = [PhB(CH_2PPh_2)_3]-). These transformations lead to structurally unique {L_3Fe^(II)(μ-NH)(μ-H)Fe^(II)L^3}- and L_3Fe^(III)(μ-NH)(μ-H)Fe^(II)L_3 products. X-ray data establish a marked reduction in the Fe−Fe distance upon H_2 uptake, and spectroscopic data establish both Fe^(II)Fe^(II) species to be diamagnetic, whereas the Fe^(III)Fe^(II) species, L_3Fe^(III)(μ-N)Fe^(II)L_3 and L_3Fe^(III)(μ-NH)(μ-H)Fe^(II)L_3, populate doublet ground states with thermally accessible higher spin states.
Additional Information
© 2005 American Chemical Society. Received July 5, 2005. Publication Date (Web): September 3, 2005. We thank the NIH for financial support (GM-070757 to J.C.P., GM-072291 to M.P.M.), and Dr. Angel J. Di Bilio, Lawrence Henling, and Dr. Michael W. Day for assistance. Supporting Information Available: Experimental and characterization data; crystallographic data. This material is available free of charge via the Internet at http://pubs.acs.org.Attached Files
Supplemental Material - ja0544509si20050707_035438.cif
Supplemental Material - ja0544509si20050815_051018.pdf
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Additional details
- Alternative title
- Heterolytic H2 Activation Mediated by Low-Coordinate L3Fe-(µ-N)-FeL3 Complexes to Generate Fe(µ-NH)(µ-H)Fe Species
- Eprint ID
- 47997
- DOI
- 10.1021/ja0544509
- Resolver ID
- CaltechAUTHORS:20140805-134110901
- GM-070757
- NIH
- GM-072291
- NIH
- Created
-
2014-08-05Created from EPrint's datestamp field
- Updated
-
2021-11-10Created from EPrint's last_modified field