Silver(III) biguanides
- 1 January 1969
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A
- p. 1304-1305
- https://doi.org/10.1039/j19690001304
Abstract
A series of quadricovalent cationic complexes of silver(III) with biguanide and with methylbiguanide having the composition [AgIIIL2]X3, where L is a bidentate ligand and X a univalent anion, has been prepared and characterised. In alkaline, neutral, and feebly acidic medium (pH > 5), the biguanide molecule possesses filled π-type delocalised orbitals. Some of the d electrons in the hypothetical AgI complex are forced to occupy higher-energy antibonding orbitals from which they can be removed by oxidation to give an AgIII complex. All the compounds were found to be diamagnetic, indicating dsp2 hybridisation.Keywords
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