Synthesis and Characterization of 2,2′-Azoquinoxalines Substituted with Long Alkoxy Chains and Halogeno Groups and a Binuclear Cyclopalladated Symmetrical Azoquinoxaline Complex

2,2′-Azobisquinoxalines substituted with bromo and octyloxy groups and symmetrical binuclear cyclopalladated azoquinoxaline are prepared from the corresponding quinoxalin-2(1H)-one oximes.