ChemInform Abstract: 2,4,6‐Tris(4,5‐diisopropyl‐1,3‐dithiol‐2‐ylidene)cyclohexane‐1,3,5‐ trione: Synthesis, X‐Ray Crystal Structure, and Amphoteric Redox Properties of a Highly Delocalized Heterocyclic π‐System.