Non-innocent Redox Behavior of Amidinato Ligands: Spectroscopic Evidence for Amidinyl Complexes. Zeitschrift fuer Anorganische und Allgemeine Chemie, (640)14:2781--2787, 2014. [PUMA: MO amidinato amidinyl crystal oxidn oxidn;mol prepn ruthenium spectroelectrochem structure]