Issue 9, 1976

Complexes of nickel(III) with biguanide and N′-amidinoisoureas

Abstract

The following complexes of nickel(III) with biguanide (Hbg), N′-amidinoisourea (aiu), and O-alkyl-N′-amidinoisoureas [alkyl = Me (Hmaiu) or Et (Heaiu)] have been prepared and isolated: [NiBr2L2]Br and [NiCl2L2]X (L = Hbg, X = F or Cl); [NiL2]Cl (L = aiu); and [NiL2]2[SO4]·2H2O (L = maiu or eaiu). Oxidimetric titrations and the values of the oxidation potentials indicate that the complexes are one-electron oxidizing agents, while polarographic reduction-potential studies suggest nickel(III) complexes rather than nickel (II)-stabilized radical-ligand compounds. Magnetic-susceptibility, e.s.r., and i.r. data also support the presence of NiIII in these complexes.

Article information

Article type
Paper

J. Chem. Soc., Dalton Trans., 1976, 776-779

Complexes of nickel(III) with biguanide and N′-amidinoisoureas

D. Sen and C. Saha, J. Chem. Soc., Dalton Trans., 1976, 776 DOI: 10.1039/DT9760000776

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Spotlight

Advertisements