Intramolecular Ferromagnetic Radical-Cu(II) Coupling in a Cu(II) Complex Ligated with Pyridyl-Substituted Triarylmethyl Radicals.

Abstract

Novel metal complexes M(hfac)2(PyBTM)2 [M = Cu(II), Zn(II); hfac = hexafluoroacetylacetonato; PyBTM = (3,5-dichloro-4-pyridyl)bis(2,4,6-trichlorophenyl)methyl radical] were prepared. Both hexacoordinated complexes had elongated octahedral geometry, in which two PyBTM molecules coordinated at the equatorial positions in Cu(II)(hfac)2(PyBTM)2 but at the axial positions in Zn(II)(hfac)2(PyBTM)2. Magnetic studies revealed an intramolecular ferromagnetic exchange interaction between the spins on PyBTM and Cu(II) (JCu-R/kB = 47 K) based on the orthogonality of the two spin orbitals.

DOI: 10.1021/acs.inorgchem.5b00499

Cite this paper

@article{Kusamoto2015IntramolecularFR, title={Intramolecular Ferromagnetic Radical-Cu(II) Coupling in a Cu(II) Complex Ligated with Pyridyl-Substituted Triarylmethyl Radicals.}, author={Tetsuro Kusamoto and Yohei Hattori and Akira Tanushi and Hiroshi Nishihara}, journal={Inorganic chemistry}, year={2015}, volume={54 9}, pages={4186-8} }