TY  - JOUR
AU  - O’Connor, Helen M.
AU  - Scott, Aaron J.
AU  - Pitak, Mateusz B.
AU  - Klooster, Wim T.
AU  - Coles, Simon J.
AU  - Chilton, Nicholas F.
AU  - McInnes, Eric J. L.
AU  - Lusby, Paul J.
AU  - Weihe, Høgni
AU  - Piligkos, Stergios
AU  - Brechin, Euan K.
AU  - Calvo, Sergio
TI  - [CrIII8NiII6]n+ Heterometallic Coordination Cubes
JO  - Molecules
VL  - 26
IS  - 3
SN  - 1420-3049
CY  - Basel
PB  - MDPI
M1  - FZJ-2021-04409
SP  - 757 -
PY  - 2021
AB  - Three new heterometallic [CrIII8NiII6] coordination cubes of formulae [CrIII8NiII6L24(H2O)12](NO3)12 (1), [CrIII8NiII6L24(MeCN)7(H2O)5](ClO4)12 (2), and [CrIII8NiII6L24Cl12] (3) (where HL = 1-(4-pyridyl)butane-1,3-dione), were synthesised using the paramagnetic metalloligand [CrIIIL3] and the corresponding NiII salt. The magnetic skeleton of each capsule describes a face-centred cube in which the eight CrIII and six NiII ions occupy the eight vertices and six faces of the structure, respectively. Direct current magnetic susceptibility measurements on (1) reveal weak ferromagnetic interactions between the CrIII and NiII ions, with JCr-Ni = + 0.045 cm−1. EPR spectra are consistent with weak exchange, being dominated by the zero-field splitting of the CrIII ions. Excluding wheel-like structures, examples of large heterometallic clusters containing both CrIII and NiII ions are rather rare, and we demonstrate that the use of metalloligands with predictable bonding modes allows for a modular approach to building families of related polymetallic complexes. Compounds (1)–(3) join the previously published, structurally related family of [MIII8MII6] cubes, where MIII = Cr, Fe and MII = Cu, Co, Mn, Pd
LB  - PUB:(DE-HGF)16
C6  - 33540541
UR  - <Go to ISI:>//WOS:000615458800001
DO  - DOI:10.3390/molecules26030757
UR  - https://juser.fz-juelich.de/record/902614
ER  -