Type:
Journal
Description:
Compounds of general formula [Cr7MF3(Etglu)(O2CtBu)15(Phpy)] [H5Etglu = N-ethyl-d-glucamine; Phpy = 4-phenylpyridine; M = Zn (1), Mn (2), Ni (3)] have been prepared. The structures contain an irregular octagon of metal sites formed around the penta-deprotonated Etglu5– ligand; the chirality of N-ethyl-d-glucamine is retained in the final product. The seven CrIII sites have a range of coordination environments, and the divalent metal site is crystallographically identified and has a Phpy ligand attached to it. By using complementary experimental techniques, including magnetization and specific heat measurements, inelastic neutron scattering, and electron paramagnetic resonance spectroscopy, we have investigated the magnetic features of this family of {Cr7M} rings. Microscopic parameters of the spin Hamiltonian have been determined as a result of best fits of the different experimental data, allowing a direct …
Publisher:
American Chemical Society
Publication date:
26 Jun 2014
Biblio References:
Volume: 136 Issue: 27 Pages: 9763-9772
Origin:
Journal of the American Chemical Society