Synthesis, structural and solvent influence studies on solvatochromic of acetylacetonatocopper(II) with N,N′-dibenzylic or thiophene derivatives of ethylenediamine complexes
摘要:
Five mixed-chelate copper(II) complexes with the general formula [Cu(acac)(diam)]ClO4, where acac is acetylacetonate ion and diam is N,N'-dibenzylic or thiophene derivatives of ethylenediamine were prepared and characterized by elemental analysis, spectroscopic and conductance measurements. The X-ray crystal analysis of these complexes demonstrated that ClO4- ions are bound weakly above and below of the chelate plane. In solution, the perchlorate ions are driven out by solvent molecules leading to their solvatochromism. (c) 2005 Elsevier B.V. All rights reserved.
-Dibenzylethylenediamine is presented as a new, efficient, and versatile bidentateligand suitable for the copper catalyzed formation of the C-N bond. This bidentateligand has been demonstrated to facilitate the copper catalyzed cross-coupling reactions of aryl iodides with amides to afford the desired products in good to excellent yields.