Strong Direct Magnetic Coupling in a Dinuclear Co(II) Tetrazine Radical Single-Molecule Magnet. Academic Article uri icon

abstract

  • The ligand-centered radical complex [(CoTPMA)2 --bmtz(.-) ](O3 SCF3 )3 CH3 CN (bmtz=3,6-bis(2'-pyrimidyl)-1,2,4,5-tetrazine, TPMA=tris-(2-pyridylmethyl)amine) has been synthesized from the neutral bmtz precursor. Single-crystal X-ray diffraction studies have confirmed the presence of the ligand-centered radical. The Co(II) complex exhibits slow paramagnetic relaxation in an applied DC field with a barrier to spin reversal of 39K. This behavior is a result of strong antiferromagnetic metal-radical coupling combined with positive axial and strong rhombic anisotropic contributions from the Co(II) ions.

published proceedings

  • Chemistry

author list (cited authors)

  • Woods, T. J., Ballesteros-Rivas, M. F., Ostrovsky, S. M., Palii, A. V., Reu, O. S., Klokishner, S. I., & Dunbar, K. R.

citation count

  • 39

complete list of authors

  • Woods, Toby J||Ballesteros-Rivas, Maria Fernanda||Ostrovsky, Sergei M||Palii, Andrew V||Reu, Oleg S||Klokishner, Sophia I||Dunbar, Kim R

publication date

  • July 2015

publisher