Nomenclature Of Coordination Compounds
Chapter Name : Coordination Compounds |
Sub Topic Code : 102_12_09_03_02 |
Topic Name : Nomenclature Of Coordination Compounds |
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Sub Topic Name : Naming Of Mononuclear Coordination Compounds |
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Introduction
Coordination compounds are molecules that poses a metal center that is bound to ligands (atoms, ions, or molecules that donate electrons to the metal). These complexes can be neutral or charged. When the complex is charged, it is stabilized by neighboring counter-ions.
Pre-Requisites:
Nomenclature Of Coordination Compounds
Activity:
Water.
Real Life Question:
What are Coordination compounds?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Coordination compounds | Coordination complexes have their own classes of isomers, different magnetic properties and colors, and various applications (photography, cancer treatment, etc.), so it makes sense that they would have a naming system as well. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Lewis base theory | The Lewis Acid and Base theory is another way of explaining reactions between H+ and OH- ions. |
Real life uses :
A complex is a substance in which a metal atom or ion is associated with a group of neutral molecules or anions called ligands. Coordination compounds are neutral substances (i.e. uncharged) in which at least one ion is present as a complex.
Places to visit :
Chemistry laboratory.
Practical examples around us
| Examples | Explainations |
|---|---|
| Amminetetraaquachromium(II) ion | Amminetetraaquachromium (II) ion would be written as [Cr (H2O) 4(NH3)]+2. Both ligands are neutral, so they are ordered alphabetically with H2O before NH3. |
What you learn in Theory:
Name the ligands first, in alphabetical order, then the metal atom or ion.
What you learn in Practice:
The recommendations describe a number of different ways in which compounds can be named. These are: • Compositional naming (e.g. sodium chloride). • Substitutive naming based on parent hydrides (GeCl2Me2 dichlorodimethylgermane). • Additive naming ([MnFO3] fluoridotrioxidomanganese).