Inorganic Chemistry, Vol.45, No.22, 8826-8828, 2006
Copper complex of an iminodioxabicyclo[3.3.1] nonane pendant ligand: the first example of iminodioxocin bridgehead nitrogen coordination
The pentadentate N4O amine-imine-naphthol ligand ( HLD) containing rigid 8,16-imino-8H, 16H-dinaphtho[ 2,1-b: 2,1-f][ 1,5] dioxocin is formed preferentially, under visible light irradiation conditions, instead of the product H3L, expected from imidazolidine ring formation. A strained chelate bite enforces the first bridgehead nitrogen coordination to a copper( II) ion from the bicyclic imino-dioxocin part of the ligand as shown by X-ray crystallography.