183150-11-0Relevant articles and documents
Structurally diverse copper(II) herbicide Complexes: Mono- and Bi-nuclear Neutral or Cationic Complexes
Dendrinou-Samara, Catherine,Psomas, George,Christophorou, Konstantinos,Tangoulis, Vasilis,Raptopoulou, Catherine P.,et al.
, p. 3737 - 3744 (2007/10/03)
Copper complexes with the commercial auxin herbicides 2,3-dichlorophenoxyacetic acid and 2-(2,4-dichlorophenoxy)propanoic acid and 2,2'-bipyridine (bipy) were prepared and characterized: 1, 2(bipy)(H2O)> 2 and (bipy)2>Cl 3.The available evidence supports a dimeric structure for complex 1 while the presence of bipy leads to monomeric forms.In dimethylformamide solution the binuclear complex is converted into a monomeric complex upon addition of a > 1:2 ratio of bipy.The ESR powder spectrum of compound 2 exhibits features characteristic of the presence of a S = 1 triplet state which may be assigned to a hydrogen-bond network.The crystal structures of the three complexes have been determined.