F -,Cl - fluoro , chloro   Pb Blei (Plumbum)
Br -, I - bromo , iodo Fe Eisen (Ferrum)
CN- cyano Cu Kupfer (Cuprum)
SCN- thiocyanato Ni Nickel (Nicolum)
S2O32- thiosulfato Hg Quecksilber (Mercurium)
OH- hydroxo Ag Silber (Argentum)
H2O aqua Zn Zink (Zincum)
NH3 ammin Sn Zinn (Stannum)
CO carbonyl