CuLnrevision-IAK06072017.pdf (2.26 MB)
Stepwise investigation of the influences of steric groups versus counter ions to target Cu/Dy complexes
journal contribution
posted on 2023-06-09, 07:23 authored by Irina A Kuehne, Kieran Griffiths, Amy-Jayne Hutchings, Oliver P E Townrow, Andreas Eichhoeffer, Christopher E Anson, George KostakisGeorge Kostakis, Annie K PowellFrom an investigation of varying the steric bulk of a flexible ligand, we have produced a family of structures using similar reaction conditions. Even small changes from a hydrogen atom to a methyl to an ethyl group on the ligand influences the structural outcome, which can also be steered by the nature of the metal source. We employed Schiff base ligands by combining o-vanillin and three different 2-amino-1,3-propandiol units, leading to H3L1 (R=hydrogen), H3L2 (R=methyl) and H3L3 (R=ethyl). The differing nuclearities of the three clusters, 1 to 3, originate mainly from the steric influence, while this effect is not seen in complex 4 to 6, where the general butterfly motif is maintained. We present here the synthesis, crystal structures and magnetic properties of six new CuII-LnIII complexes, providing valuable insight into future synthetic directions. The topological part includes a table of all CuII-DyIII complexes with nuclearities higher than four and their topological motif. The investigation of the magnetic behaviors reveal that all six complexes show frequency dependent signals in the out-of phase ac susceptibility, which is indicative for SMM behavior.
History
Publication status
- Published
File Version
- Accepted version
Journal
Crystal Growth & DesignISSN
1528-7483Publisher
American Chemical SocietyExternal DOI
Issue
10Volume
17Page range
5178-5190Department affiliated with
- Chemistry Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2017-07-24First Open Access (FOA) Date
2018-07-12First Compliant Deposit (FCD) Date
2017-07-24Usage metrics
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