A benzo-1,2,4-triazinyl radical 1   synthesized by Blatter in 1968[1] has been dubbed 'indefinitely stable' in air.[2] Surprisingly few structural modifications have been performed to this system in the 35 years since its synthesis. Alteration of the structural backbone to afford 2   has now been performed creating a bidentate coordination environment while retaining the stability of the radical in air. Full characterization of 2  has been published along with its successful coordination to a copper(II) center.[3] Further coordination attempts with a variety of paramagnetic metal ions have been executed yielding new metal-radical complexes in varying crystal environments and stoichiometries. Density functional theory calculations and magnetic measurements have elucidated the nature of metal-radical interactions in these systems.[1] H. M. Blatter, H. Lukaszewski Tetrahedron Lett. 1968 , 9, 2701. [2] P. A. Koutentis, D. Lo Re Synthesis 2010 , 2075. [3] I. S. Morgan, A. Peuronen, M. H. H�nninen, R. Reed, R. Cl�rac, H. M. Tuononen Inorg. Chem. 2014 , 53, 33.

Synthesis and characterization of a new air stable 1,2,4-triazinyl radical and its coordination complexes

248th National Meeting (2014)

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