364592-16-5Relevant academic research and scientific papers
Inorganic cobaloximes with mixed dioxime equatorial ligands: A convenient one pot synthesis and cis influence studies: X-ray crystal structures of N3CoIII(dmgH)(dpgH)Py and N3CoIII(chgH)(dpgH)Py
Gupta,Tiwari, Usha,Barclay,Cordes
, p. 83 - 92 (2001)
A simple and general route to the synthesis of cobaloxime with mixed dioxime ligands, XCo(L)(L′)Py, L,L′=dmgH/dpgH and chgH/dpgH; X=Cl, Br, NO2, N3, has been described. These compounds are reported for the first time. The synthesis is confirmed by the X-ray structures of N3Co(dmgH)(dpgH)Py and N3Co(chgH)(dpgH)Py. The cis and trans effects on these complexes and on XCo(L)2Py (L=dmgH, chgH, dpgH; X=Cl, Br, NO2, N3) complexes have been studied by 1H-, 13C-NMR, UV, and X-ray. For a range of X ligands, a clear trend between the 1H, 13C chemical shifts of the equatorial and axial ligands as well as with the Co-dioxime CT band has been observed. The analysis of the 13C values and X-ray data shows that one dioxime wing effects the other dioxime wing in the mixed dioxime complexes.
