TY - JOUR
T1 - Synthesis and Reactivity of Discrete Europium(II) Hydride Complexes
AU - Richardson, Georgia M.
AU - Evans, Matthew J.
AU - Rajeshkumar, Thayalan
AU - McCone, Jordan A.J.
AU - Cameron, Scott A.
AU - Maron, Laurent
AU - Jones, Cameron
AU - Anker, Mathew D.
N1 - Publisher Copyright:
© 2024 The Authors. Chemistry - A European Journal published by Wiley-VCH GmbH.
PY - 2024/5/14
Y1 - 2024/5/14
N2 - The bulky β-diketiminate ligand frameworks [BDIDCHP]− and [BDIDipp/Ar]− (BDI=[HC{C(Me)2N-Dipp/Ar}2]− (Dipp=2,6-diisopropylphenyl (Dipp); Ar=2,6-dicyclohexylphyenyl (DCHP) or 2,4,6-tricyclohexylphyenyl (TCHP)) have been developed for the kinetic stabilisation of the first europium (II) hydride complexes, [(BDIDCHP)Eu(μ-H)]2, [(BDIDipp/DCHP)Eu(μ-H)]2 and [(BDIDipp/TCHP)Eu(μ-H)]2, respectively. These complexes represent the first step beyond the current lanthanide(II) hydrides that are all based on ytterbium. Tuning the steric profile of β-diketiminate ligands from a symmetrical to unsymmetrical disposition, enhanced solubility and stability in the solution–state. This provides the first opportunity to study the structure and bonding of these novel Eu(II) hydride complexes crystallographically, spectroscopically and computationally, with their preliminary reactivity investigated.
AB - The bulky β-diketiminate ligand frameworks [BDIDCHP]− and [BDIDipp/Ar]− (BDI=[HC{C(Me)2N-Dipp/Ar}2]− (Dipp=2,6-diisopropylphenyl (Dipp); Ar=2,6-dicyclohexylphyenyl (DCHP) or 2,4,6-tricyclohexylphyenyl (TCHP)) have been developed for the kinetic stabilisation of the first europium (II) hydride complexes, [(BDIDCHP)Eu(μ-H)]2, [(BDIDipp/DCHP)Eu(μ-H)]2 and [(BDIDipp/TCHP)Eu(μ-H)]2, respectively. These complexes represent the first step beyond the current lanthanide(II) hydrides that are all based on ytterbium. Tuning the steric profile of β-diketiminate ligands from a symmetrical to unsymmetrical disposition, enhanced solubility and stability in the solution–state. This provides the first opportunity to study the structure and bonding of these novel Eu(II) hydride complexes crystallographically, spectroscopically and computationally, with their preliminary reactivity investigated.
KW - europium
KW - hydride
KW - lanthanide (II) hydrides
KW - unsymmetric β-diketiminates
KW - β-diketiminates
UR - http://www.scopus.com/inward/record.url?scp=85189625033&partnerID=8YFLogxK
U2 - 10.1002/chem.202400681
DO - 10.1002/chem.202400681
M3 - Article
AN - SCOPUS:85189625033
SN - 1521-3765
VL - 30
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
IS - 27
M1 - e202400681
ER -