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Syntheses and Reactions of Iron(II) Complexes Containing Diphosphine Ligands with Pendant Nitrogen Bases

Journal Article · · Organometallics, 26(20):4964-4971
DOI:https://doi.org/10.1021/om700510b· OSTI ID:921820
A series of new iron(II)-hydride complexes that contain diphosphine ligands with pendant amine bases of the formula cis-[HFeL(PNP)2]+, where PNP = Et2PCH2NMeCH2PEt2 and L = CH3CN (3), CO (4), and P(OEt)3 (5), have been synthesized and characterized. Protonations of the pendant bases in the PNP complexes have been characterized, and for selected complexes, pKa values have been determined. Unlike the previously studied hydride complexes [HNi(PNP)2]+ and trans-[HFe(CH3CN)(PNP)(dmpm)]+, the new hydride complexes reported here do not show rapid intramolecular exchange between the protonated base of the diphosphine and the hydride ligand. “This work was supported by the Office of Basic Energy Sciences of the Department of Energy. The Pacific Northwest National Laboratory is operated by Battelle for the US Department of Energy.”
Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
OSTI ID:
921820
Report Number(s):
PNNL-SA-55523; KC0302010
Journal Information:
Organometallics, 26(20):4964-4971, Journal Name: Organometallics, 26(20):4964-4971 Journal Issue: 20 Vol. 26; ISSN ORGND7; ISSN 0276-7333
Country of Publication:
United States
Language:
English

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