The following rules are used when naming coordination compounds:
(i) The cation is named first in both positively and negatively charged
coordination entities (ii) The ligands are named in an alphabetical order before the name of the
central atom/ion (This procedure is reversed from writing formula) (iii) Names of the anionic ligands end in –o, those of neutral and cationic
ligands are the same except aqua for H2O, ammine for NH3, carbonyl
for CO and nitrosyl for NO