Question

Write the IUPAC name of$\left[ PtC{{l}_{2}}{{(N{{H}_{3}})}_{2}} \right]$.

Answer 1

To write the IUPAC nomenclature we have to understand the compound structure and the ligands attached to it. For the IUPAC naming of compounds there are certain rules to be followed and also we should calculate the oxidation number on the central metal ion.

Complete step by step solution:
First calculate the oxidation state of the central metal atom which is Pt in $\left[ PtC{{l}_{2}}{{(N{{H}_{3}})}_{2}} \right]$
Oxidation state of $N{{H}_{3}}$ in the given compound= 0
Oxidation state of Cl in the given compound= -1
Oxidation state of the central metal atom ion Pt=

& Pt+2(-1)+2(0)=0 \\\ & Pt=+2 \\\ \end{aligned}$$ Hence the oxidation state of central metal ion is +2 The oxidation state while writing the IUPAC nomenclature will be written in roman numbers inside brackets. If more than one atom is present, suffixes like di, tri, tetra are used. If the cation is present outside the bracket then ate is added to the name of the central metal ion. The number of chlorine atoms here is 2 so the name will be dichloride and the number of ammonia molecules here is 2 so the name will be diammine. **The IUPAC name of the given compound is Diamminedichloroplatinum (II).** **Additional information:** The cis form of Diamminedichloidoplatinum (II) is use for the treatment of advanced bladder cancer, and testicular cancer. It is a widely used drug for the treatment of cancer. **Note:** While writing the name of the substituents alphabetical order should be followed by its base name. There should be a comma between numbers and a dash between the letters and numbers.