Question

Give one example each of first and 2nd order inner metallic complex?

Answer 1

Some ligands such as acetyl acetonato, glycine etc. have both neutral donor and anionic (acidic) groups. Co-ordination number and oxidation state i.e., charge on metal ion gets satisfied simultaneously when metal ions are co-ordinated to such ligands. Complexes so formed are called inner metallic complexes or only inner complex. Examples of inner complexes are:
[Co3(gly)3], [Co(acac)3], [Cu(gly)2] and [Cu(big)2]