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Monatshefte für Chemie / Chemical Monthly

, Volume 107, Issue 5, pp 1085–1093 | Cite as

Isomere Kupfer(II)-Chelate mit Liganden vom Cuprointyp

Untersuchungen an Metallchelaten mit Liganden vom Cuproin- und Ferrointyp, 20. Mitt.
  • Detlef Rehorek
  • Monika Ackermann
  • Heinz Spindler
  • Philipp Thomas
Anorganische, Struktur- und Physikalische Chemie

Isomeric copper(II) chelates with ligands of the cuproine type. Investigations of metal chelates with ligands of the cuproine and ferroine type, XX

Abstract

Two pairs of isomeric copper(II) chelates of the composition Cu(dm)(NO3)2 and Cu(dp)(NO3)2, resp., have been prepared (dm=6,7-dihydro-5,8-dimethyl-dibenzo[b,j][1,10]phenanthroline), anddp=6,7-dihydro-5,8-diphenyl-dibenzo[b,j][1, 10]-phenanthroline). By ESR, IR, and visible reflectance spectra the structures of the first coordination sphere of these chelates have been established, the two Cu(dm) (NO3)2 chelates and the brown α-Cu(dp) (NO3)2, having coordination number six while the green β-Cu(dp) (NO3)2 has coordination number seven. In comparison with the diamagnetically diluted complexes (solution, powder) the isomerism is found to be typical only for undiluted copper(II) complexes.

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Copyright information

© Springer-Verlag 1976

Authors and Affiliations

  • Detlef Rehorek
    • 1
  • Monika Ackermann
    • 1
  • Heinz Spindler
    • 1
  • Philipp Thomas
    • 1
  1. 1.Sektion ChemieKarl-Marx-Universität LeipzigLeipzigDeutsche Demokratische Republik

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