Chiral metal complexes. 51. * structure of the DNA probe Δ-α-[N,N′-dimethyl-1,6-di(2-pyridyl)-2,5-diazahexane][S- phenylalaninato(1-)]-cobalt(III) perchlorate

Peter Leverett*, Janice Petherick, Peter A. Williams, Robert S. Vagg

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The ternary complex Δ-α-[N,N′-dimethyl-1,6-di(2-pyridyl)-2,5-diazahexane][S- phenylalaninato(1-)]cobalt(III) perchlorate has been isolated from aqueous solution as the least soluble diastereoisomer. Crystals are orthorhombic, space group P212121 with a-10.462(2), b = 12.895(3), c = 22.560(3)Å, V=3043.4Å3, Z = 4, Dc= 1.480 and Dm= 1.48. The structure was refined by full-matrix least-squares to a final R value of 0.054 for 1797 reflections with I > 2σ(I). In the structure, the phenyl ring of the phenylalanine ligand is bonded face-to-face, albeit slightly offset, to one of the pyridine rings of the tetradentate. 1H NMR measurements show that this indicated weak interaction between the rings persists in solution.

Original languageEnglish
Pages (from-to)91-100
Number of pages10
JournalJournal of Coordination Chemistry
Volume49
Issue number2
Publication statusPublished - 1999

Keywords

  • Cobalt(III)
  • DNA
  • Phenylalanine
  • Tetradentate
  • Van der waals bond
  • X-ray structure

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