( ( ( ( ( ( Where ( there ( are ( known ( to ( be ( complex ( ( cations or ) anions ) ) ) ) ) ) ) ) ( these ( are ( named ( in ( their ( own right ) ) ) ) ) ) ) and ) then ) ( ( these names ) ( used ( as ( part ( of ( the ( compound name ) ) ) ) ) ) ) ) . )
(ROOT (S (S (SBAR (WHADVP (WRB Where)) (S (NP (EX there)) (VP (VBP are) (VP (VBN known) (S (VP (TO to) (VP (VB be) (NP (JJ complex) (NNS cations) (CC or) (NNS anions))))))))) (NP (DT these)) (VP (VBP are) (VP (VBN named) (PP (IN in) (NP (PRP$ their) (JJ own) (NN right)))))) (CC and) (RB then) (S (NP (DT these) (NNS names)) (VP (VBN used) (PP (IN as) (NP (NP (NN part)) (PP (IN of) (NP (DT the) (JJ compound) (NN name))))))) (. .)))
Where there are known to be complex cations or anions these are named in their own right and then these names used as part of the compound name.
(ROOT (S (SBAR (WHADVP (WRB When)) (S (VP (VBG naming) (NP (DT an) (JJ ionic) (NN compound))))) (, ,) (NP (DT the) (NN cation)) (VP (VBZ is) (VP (VBN written) (ADVP (RB first)))) (. .)))
When naming an ionic compound, the cation is written first.