Chapter 24, Problem 39IAE

Interpretation Introduction

(a)

Interpretation:

The formula of the complex ion of name cupric tetraamine ion needs to be determined.

Concept introduction:

Naming of complex ions is done as per the set of rules wherein the oxidation number of metal ions are needed to be indicated in the form of a Roman numeral. Besides, ligands are to be named before the metal ion and in a specific order as neutral, negative and positive. The number of ligands is indicated by prefix di, tri, tetra, penta, etc. The anions end with −ido that replaces ‘e’ and in some cases ‘o’ replaces ‘e’. For example, amines are termed as ammine, water as aqua, NO as nitrosyl and CO and carbonyl.

Interpretation Introduction

(b)

Interpretation:

The formula of the complex ion of name dichlorotetraammine cobaltic chloride needs to be determined.

Concept introduction:

There are a certain set of rules for naming complex in which the oxidation number of metal ions is depicted as Roman numerals. Ligands are named in order of neutral, negative and positive and are before the metal ions as well. The number of ligands is indicated by prefix di, tri, tetra, penta, etc. For example: amines are termed as ammine, water as aqua and NO as nitrosyl and CO and carbonyl.

Interpretation Introduction

(c)

Interpretation:

The formula of the complex ion of name platinic(IV) hexachloride ion needs to be determined.

Concept introduction:

As per naming rules, the metal ions are depicted with its oxidation number in the form of a Roman numeral. Ligands are identified in their specific order as neutral, negative and positive. Besides, it is named before the metal ion. The number of ligands is identified using terms like di, tri, tetra, Penta, etc. Also, anions ending with ‘e’ are changed with ‘o’. Also, molecules like amine are called as ammine, water molecules called as aqua.

Interpretation Introduction

(d)

Interpretation:

The formula of the complex ion of the name disodium copper tetrachloride needs to be determined.

Concept introduction:

The metal ions are depicted with its oxidation number in the form of the Roman numeral as per naming rules. Ligands are usually named after metal ions and are identified in order as neutral, negative and positive. The numbering of ligands is termed as di, tri, tetra, penta, etc. Anions that end with ‘e’ are changed with an ‘o’. Molecules like amine when in the ligand is called as ammine, water molecules are called as aqua.

Interpretation Introduction

(e)

Interpretation:

The formula of the complex ion of the name dipotassium antimony(III) pentachloride needs to be determined.

Concept introduction:

Based on naming rules, the metal ions are depicted with its oxidation number in the form of a Roman numeral. Also, the ligands are named after metal ions and are identified in order as neutral, negative and positive. The numbering of ligands is di, tri, tetra, penta, etc based on the number of ligands attached. Anions ending with ‘e’ gets changed with an ‘o’. Molecules like amine is called as ammine, water molecules are called as aqua.