分子状酸素のC-H結合へのインサーション
This surprise transformation is reminiscent of the story of “The Ugly Duckling”, written by Hans Christian Andersen (1805–1875).
The manganese ion is 6-coordinate with quite irregular geometry ( = 92.8°)a. A 2-fold axis runs through the metal ion and bisects the angle between the two cis bromide ions.
The dpeo ligands are bidentate, forming 5-membered -diimine chelate rings, with the oxime nitrogen donors in the same plane as the bromide ions and the pyridyl donors apical.
The uncoordinated pyridyl![イメージ 5]()
s and oxime OH groups are involved in intermolecular H-bonds, forming double-layered sheets lying perpendicular to the c axis. The principal interactions between the sheets are (aromatic)C-H….Br hydrogen bonds.