DEPROTONATION OF BIPYRIDYL(ETHYLENEDIAMINE)PLATINUM(2) IODIDE

In square-planar complexes of platinum(II), a bipyridyl ligand so enhances the acidity of an associated ethylenediamine ligand that it can be partially deprotonated by the relatively weakly basic ammonia molecule, N-methyl-substituted ethylenediamine ligands can be deprotonated with amide ion in liquid ammonia, and both protons can be abstracted from the same nitrogen atom. The site of deprotonation has been established by methylation of the deprotonated complexes and comparison of the physical properties of the products with those of complexes synthesized by independent methods. © 1968, American Chemical Society. All rights reserved.