Reactivity of Paramagnetic Fe-II-Bis(amidinate) Complexes

Erica Jellema; Timo J. J. Sciarone; Noa M. Navarrete; Marten J. Hettinga; Auke Meetsma; Bart Hessen

doi:10.1002/ejic.201000717

Reactivity of Paramagnetic Fe-II-Bis(amidinate) Complexes

Erica Jellema
, Timo J. J. Sciarone^*
, Noa M. Navarrete
, Marten J. Hettinga
, Auke Meetsma
, Bart Hessen

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

Synthesis and characterisation of ether adducts of bis(amidinate) Fe-II complexes are described [amidinate = 2,6-iPr(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-iPr(2)C(6)H(3)-NC(Ph)N-Ar (Ar = 2,6-iPr(2)C(6)H(3), 2,6-Me2C6H3) The more accessible ether adducts show enhanced reactivity towards Lewis bases and towards the pi-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.

Original language	English
Pages (from-to)	91-100
Number of pages	10
Journal	European Journal of Inorganic Chemistry
Issue number	1
DOIs	https://doi.org/10.1002/ejic.201000717
Publication status	Published - Jan-2011

Keywords

Iron
N ligands
Carbonylation
Lewis bases
Magnetic properties
TRANSITION-METAL-COMPLEXES
IRON(II) COMPLEXES
LIGAND
DERIVATIVES
CRYSTAL

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CCDC 777667: Experimental Crystal Structure Determination
Jellema, E. (Contributor), Sciarone, T. (Contributor), Navarrete, N. M. (Contributor), Hettinga, M. (Contributor), Meetsma, A. (Contributor) & Hessen, B. (Contributor), University of Groningen, 19-May-2010
DOI: 10.5517/ccv3716
Dataset
CCDC 777668: Experimental Crystal Structure Determination
Jellema, E. (Contributor), Sciarone, T. (Contributor), Navarrete, N. M. (Contributor), Hettinga, M. (Contributor), Meetsma, A. (Contributor) & Hessen, B. (Contributor), University of Groningen, 19-May-2010
DOI: 10.5517/ccv3727
Dataset
CCDC 777666: Experimental Crystal Structure Determination
Jellema, E. (Contributor), Sciarone, T. (Contributor), Navarrete, N. M. (Contributor), Hettinga, M. (Contributor), Meetsma, A. (Contributor) & Hessen, B. (Contributor), University of Groningen, 19-May-2010
DOI: 10.5517/ccv3705
Dataset

Cite this

@article{e4d0b3585ee945a7a5443bb37e6a3820,

title = "Reactivity of Paramagnetic Fe-II-Bis(amidinate) Complexes",

abstract = "Synthesis and characterisation of ether adducts of bis(amidinate) Fe-II complexes are described [amidinate = 2,6-iPr(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-iPr(2)C(6)H(3)-NC(Ph)N-Ar (Ar = 2,6-iPr(2)C(6)H(3), 2,6-Me2C6H3) The more accessible ether adducts show enhanced reactivity towards Lewis bases and towards the pi-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.",

keywords = "Iron, N ligands, Carbonylation, Lewis bases, Magnetic properties, TRANSITION-METAL-COMPLEXES, IRON(II) COMPLEXES, LIGAND, DERIVATIVES, CRYSTAL",

author = "Erica Jellema and Sciarone, \{Timo J. J.\} and Navarrete, \{Noa M.\} and Hettinga, \{Marten J.\} and Auke Meetsma and Bart Hessen",

year = "2011",

month = jan,

doi = "10.1002/ejic.201000717",

language = "English",

pages = "91--100",

journal = "European Journal of Inorganic Chemistry",

issn = "1434-1948",

publisher = "WILEY-V C H VERLAG GMBH",

number = "1",

}

TY - JOUR

T1 - Reactivity of Paramagnetic Fe-II-Bis(amidinate) Complexes

AU - Jellema, Erica

AU - Sciarone, Timo J. J.

AU - Navarrete, Noa M.

AU - Hettinga, Marten J.

AU - Meetsma, Auke

AU - Hessen, Bart

PY - 2011/1

Y1 - 2011/1

N2 - Synthesis and characterisation of ether adducts of bis(amidinate) Fe-II complexes are described [amidinate = 2,6-iPr(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-iPr(2)C(6)H(3)-NC(Ph)N-Ar (Ar = 2,6-iPr(2)C(6)H(3), 2,6-Me2C6H3) The more accessible ether adducts show enhanced reactivity towards Lewis bases and towards the pi-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.

AB - Synthesis and characterisation of ether adducts of bis(amidinate) Fe-II complexes are described [amidinate = 2,6-iPr(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-iPr(2)C(6)H(3)-NC(Ph)N-Ar (Ar = 2,6-iPr(2)C(6)H(3), 2,6-Me2C6H3) The more accessible ether adducts show enhanced reactivity towards Lewis bases and towards the pi-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.

KW - Iron

KW - N ligands

KW - Carbonylation

KW - Lewis bases

KW - Magnetic properties

KW - TRANSITION-METAL-COMPLEXES

KW - IRON(II) COMPLEXES

KW - LIGAND

KW - DERIVATIVES

KW - CRYSTAL

U2 - 10.1002/ejic.201000717

DO - 10.1002/ejic.201000717

M3 - Article

SN - 1434-1948

SP - 91

EP - 100

JO - European Journal of Inorganic Chemistry

JF - European Journal of Inorganic Chemistry

IS - 1

ER -

Reactivity of Paramagnetic Fe-II-Bis(amidinate) Complexes

Abstract

Keywords

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Datasets

CCDC 777667: Experimental Crystal Structure Determination

CCDC 777668: Experimental Crystal Structure Determination

CCDC 777666: Experimental Crystal Structure Determination

Cite this