2020/5/82RulesforNamingCoordinationCompounds(Continued1)•Numberofsimpleligandsaredenotedbyprefixesmono‐,di‐,tri‐,tetra‐,penta‐,andhexa‐–Prefixesbis‐,tris‐,tetrakis‐,andsoonareusedformorecomplicatedligandsoronesthatalreadycontaindi‐,tri‐,andsoon•TheoxidationstateofthecentralmetalionisdesignatedbyaRomannumeralinparentheses,–e.g.[Co(NH3)6]3+RulesforNamingCoordinationCompounds(Continued2)•Whenmorethanonetypeofligandispresent,theyarenamedalphabetically–Prefixeshavenoeffectontheorder•Ifthecomplexionhasanegativecharge(AnionicComplexions),–thesuffix‐ate(Latin)isaddedtothenameofthemetalRulesforNamingCoordinationCompounds•Ioniccompound–Cationisnamedbeforetheanion:CationAnion•Complexion–Ligandsarenamedbeforethemetalion:LigandMetal‐Ion•Ligands–An‘o’isaddedtotherootnameoftheanion(seenextslide)–Foraneutralligand,thenameofthemoleculeisused•Exception:H2O,NH3,CO,andNONamingCoordinationCompounds•Thenameofthecation precedesthenameoftheanion•
