Blatter diradicals with planar chirality: Investigation of through-space spin-spin coupling in regioisomeric derivatives of 2.2paracyclophane

Key Points

• The study aims to explore the planar chirality and spin-spin coupling of diradicals based on the [2.2]paracyclophane scaffold.
• Investigated three regioisomeric benzo[e][1,2,4]triazinyl diradicals
• Utilized spectroscopic (UV-vis, ECD, EPR), electrochemical, XRD, and magnetic methods
• Conducted variable temperature EPR measurements to analyze spin coupling.
• Identified distinct spin-spin coupling behaviors among regioisomers
• Demonstrated effective through-space interactions influencing magnetic properties
• Provided comprehensive spectroscopic data supporting theoretical predictions.

Abstract