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Reactivity of Paramagnetic Fe II –Bis(amidinate) Complexes
Author(s) -
Jellema Erica,
Sciarone Timo J. J.,
Navarrete Noa M.,
Hettinga Marten J.,
Meetsma Auke,
Hessen Bart
Publication year - 2011
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201000717
Subject(s) - chemistry , adduct , reactivity (psychology) , homoleptic , steric effects , lewis acids and bases , ether , medicinal chemistry , carbon monoxide , paramagnetism , stereochemistry , metal , catalysis , organic chemistry , physics , quantum mechanics , medicine , alternative medicine , pathology
Synthesis and characterisation of ether adducts of bis(amidinate) Fe II complexes are described [amidinate = 2,6‐ i Pr 2 C 6 H 3 –NC(Ph)N–Ph]. The isolation of these five‐coordinate complexes contrasts with the homoleptic bis(amidinate) Fe complexes obtained previously with the sterically more demanding amidinate ligands 2,6‐ i Pr 2 C 6 H 3 –NC(Ph)N–Ar (Ar = 2,6‐ i Pr 2 C 6 H 3 , 2,6‐Me 2 C 6 H 3 ) The more accessible ether adducts show enhanced reactivity towards Lewis bases and towards the π‐acid carbon monoxide. Reaction with excess amounts of CO results in carbonyl insertion into the Fe–N bonds, thereby giving rise to a diamagnetic bis(CO) adduct supported by two carbamoyl ligands.