In:
ChemistrySelect, Wiley, Vol. 2, No. 1 ( 2017-01-10), p. 110-117
Abstract:
]have been synthesized, structurally characterized and magnetically studied. X‐ray diffraction analyses indicated that the potentially pentadentate symmetric ligand affords variable coordination conformations. The copper ions are bound into hexameric moieties with helix‐like arrangement whereas cobalts with four face‐sharing monovacant distorted cubanes. Magnetic investigations revealed that within the hexanuclear unit, compound 1 exhibits antiferromagnetic interactions with the best fit parameters of J 1 =‐17.96 cm −1 , J 2 =‐22.26 cm −1 , zJ =‐0.56 cm −1 and R =1.1 × 10 −5 , while compound 2 affords ferromagnetic intramolecular couplings with the best simulation parameters of J 1 =+0.10 cm −1 ; J 2 =+0.15 cm −1 ; J x = J y =0.1 cm −1 ; J z =0.02 cm −1 ; D 1 =‐0.50; D 2 =‐0.45; g 1 =2.67; g 2 =2.57. Furthermore, the compound 2 displays slow magnetic relaxation behaviour detected by ac magnetic measurement under a 600 Oe field.
Type of Medium:
Online Resource
ISSN:
2365-6549
,
2365-6549
DOI:
10.1002/slct.201601698
Language:
English
Publisher:
Wiley
Publication Date:
2017
detail.hit.zdb_id:
2844262-3