Enhancing SIM behaviour in a mononuclear tetrahedral [Co(N,N′-2-iminopyrrolyl)2] complex†
Patrícia S.
Ferreira, 
ab
José F.
Malta,
bc
Nuno A. G.
Bandeira,
*d
Joris
van Slageren,
*e
Manuel
Almeida,
b
Laura C. J.
Pereira
*b
and
Pedro T.
Gomes
*a
ab
José F.
Malta,
bc
Nuno A. G.
Bandeira,
*d
Joris
van Slageren,
*e
Manuel
Almeida,
b
Laura C. J.
Pereira
*b
and
Pedro T.
Gomes
*a
Abstract
A new homoleptic Co(II) complex bearing two highly sterically congested 2-formiminopyrrolyl N,N′-chelating ligands is reported, displaying slow relaxation of the magnetisation at zero static (DC) field. This compound shows a large value for the zero-field splitting (ZFS) parameter D of −42.6(4) cm−1 leading to a spin-reversal energy barrier Ueff of 85 cm−1.
![Graphical abstract: Enhancing SIM behaviour in a mononuclear tetrahedral [Co(N,N′-2-iminopyrrolyl)2] complex](/en/Image/Get?imageInfo.ImageType=GA&imageInfo.ImageIdentifier.ManuscriptID=D2CC03511A&imageInfo.ImageIdentifier.Year=2022)
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