Synthesis and structural properties of (diamine) platinum(II) complexes of itaconic acid

Young A. Lee, Young Keun Chung, Kwan Mook Kim, Youn Soo Sohn

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New zwitterionic (diamine)platinum(II) complexes A2Pt(ita) (A2 = 2,2-dimethyl-1,3-propanediamine (dmpda), tetrahydro-4H-pyran-4,4-diylbis(methylamine) (thpdma), trans-(±)-1,2-diaminocyclohexane (dach), ethylenediamine (en); ita = itaconate) have been synthesized and characterized by means of NMR spectroscopy and X-ray analysis. The platinum atom adopts a square-planar arrangement, in which the itaconate ligand is coordinated to the platinum atom through one carboxylate and the ethylene groups. The ethylene group occupies the fourth coordination site of the square plane, which intersects the midpoint of the C-C bond axis, but the bond axis is not perpendicular to the square plane because of its chelated ring strain. Such a chelation mode is retained without linkage isomerism in aqueous solution up to 70°C.

Original languageEnglish
Pages (from-to)116-120
Number of pages5
JournalInorganica Chimica Acta
Issue number1
StatePublished - 15 Sep 1998

Bibliographical note

Funding Information:
Support for this research was provided by the Ministry of Science and Technology in Korea.


  • Crystal structures
  • Diamine complexes
  • Itaconic acid complexes
  • Platinum complexes


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