Question
Chemistry Question on Coordination Compounds
What is the IUPAC name of [Pt(NH3)2Cl(NO2)]?
A
Diamminechloridonitrito-N-platinum(II)
B
Diamminechloridenitrito-N-platinum(III)
C
Diamminechloridonitrito-O-platinum(II)
D
Diammonia chloridonitrito-N-platinum(II)
Answer
Diamminechloridonitrito-N-platinum(II)
Explanation
Solution
In the coordination compound [Pt(NH3)2Cl(NO2)], the ligands are named in alphabetical order: "diammine" (for the two NH3 groups), followed by "chlorido" (for Cl−) and "nitrito-N" (for NO2 attached via nitrogen). The oxidation state of platinum here is +2, denoted as "(II)" in the name. Therefore, the IUPAC name is "Diamminechloridonitrito-N-platinum(II)".