Bulletin of the Korean Chemical Society

  • 제6권6호
  • /
  • Pages.369-374
  • /
  • 1985
  • /
  • 0253-2964(pISSN)
  • /
  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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The Stereochemistry of the Metal Complexes of Novel Stereospecific Quadridentate Ligands, Cobalt(Ⅲ) Complexes of N,N$^\prime$-dimethylethlenediamine-N,N$^\prime$-di-$\alpha$-propionato and N,N$^\prime$-dimethlethylenediamine-N,N$^\prime$-diacetato Ligands

  • 발행 : 1985.12.20
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초록

A new flexible quadridentate ligand, N,N'-dimethylethylenediamine-N,N'-di-${\alpha}$-propionic acid (dmedpa) has been synthesized, and diammine and ethylenediamine cobalt(III) complexes of dmedpa, $[Co(dmedpa)(NH_3)_2]^+$ and $[Co(dmedpa(en)]^+,$ have been prepared. Only s-cis isomer has been yielede. A known N,N'-dimethylethylediamine-N,N'-diacetic acid (dmedda) has also been prepared. Dichloro cobalt(III) complexes of both dmedda and dmedpa have been prepared. Only the s-cis isomer has been yielded in the $[Co(dmedda)Cl_2]^-$ complex, while only the uns-cis isomer has been obtained for the $[Co(dmedpa)Cl_2]^-$ complex.

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