Cobalt(III) complexes of ethylenediamine-N,N′-di-S-isobutylacetic acid

Jun Moo-Jin, Cheon Jin Woo, Lee Sung Sil, Choi Sung Rack

Research output: Contribution to journalArticlepeer-review


A new optically active ONNO-type tetradentate ligand, ethylenediamine-N,N′- di-S-isobutylacetate (SS-eniba), has been synthesized. During the preparation of diaqua cobalt(III) complexes of SS-eniba, [Co(SS-eniba)(H2O)2]+, the title ligand has coordinated stereospecifically to the cobalt(III) ion to give three isomers, Δ-s-cis, Δ-uns-cis and Λ-uns-cis, which have been isolated and characterized via electronic absorption, circular dichroism (CD), and 1H NMR spectroscopy, along with elemental analysis data. The preparation of Δ-s-cis-[Co(SS-eniba)Cl2]+ and Δ-s-cis-[Co(SS-eniba)CO3]+ are also reported.

Original languageEnglish
Pages (from-to)2889-2891
Number of pages3
Issue number24
Publication statusPublished - 1989

Bibliographical note

Funding Information:
Acknowledgement-The financial support for this work (to M.J.J.) from the Korea Sciencea nd Engineering Foundation for 1987is gratefullya cknowledged.

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry


Dive into the research topics of 'Cobalt(III) complexes of ethylenediamine-N,N′-di-S-isobutylacetic acid'. Together they form a unique fingerprint.

Cite this