62554-97-6Relevant academic research and scientific papers
Spectral studies of dimeric copper(II) complexes of acid amide derivatives as models for type III copper enzymes
Grag, Bhagwan S.,Kumar, Deo Nandan,Sarbhai, Meenu,Reddy, Malladi J.
, p. 2775 - 2784 (2003)
Dimeric (hydrated and anhydrated) complexes of Cu(II) with N,N'-bis(3-carboxy-1-oxo-2-prop-2-enyl)ethylenediamine (BCOPENH2, A) and N,N'-bis(2-carboxy-1-oxo-phenylenyl)ethylenediamine (BCOPHENH2, B) have been prepared and characerised by elemental analysis, magnetic susceptibility measurements, EPR, thermal and spectral (IR, UV/Vis) studies. EPR parameters and magnetic behaviour indicates that the complexes are antiferromagnetic in nature and most likely adopt the typical carboxylate cage structure. Interesting amide bonding patterns have been observed and various EPR parameters have been evaluated on the basis of these studies, tentative probable structures of the complexes have been proposed.
Synthesis and studies on metal coordination with a novel carboxyamide ligand
Garg, Bhagwan S.,Sharma, Rakesh K.,Kumar, Vinod,Reddy,Mittal, Sachin
, p. 2789 - 2794 (2002)
Novel complexes of Co(II), Ni(II), Cu(II) and Pd(II) with the new ligand [N,N′-bis(2-carboxy-1-oxo-phenelenyl)ethylenediamine] (H2L) have been synthesized and characterized on the basis of elemental analyses, magnetic susceptibility, thermal, infrared, electronic, 1H NMR and EPR spectral studies. Infrared and 1H NMR spectra show that H2L acts as a binegative tetradentate ligand. Coordination occurs through deprotonated carboxylate oxygens and nondeprotonated amido nitrogens in all the complexes. Electronic spectral studies and magnetic moment values suggest N2O2 coordination around each metal centre with strong field square planar chromophores. The probable structures of the complexes have been assigned on the basis of spectral studies. The complex formation between M(II) [M(II) = Mn(II), Co(II), Ni(II), Cu(II) and Zn(II)] and (L2-) has also been studied potentiometrically in 75% aqueous DMF at 25°C in 0.1 M NaClO4. The stability constants were found to follow the order: Mn(II) Zn(II).
