Henry Taube Discovered Chemical Bridge

Henry Taube – discoverer of chemical bridge

Category : Personalities
Published by : Data Research Analyst, Worldofchemicals.com

Biography & contributions

Henry Taube, American chemist and Nobel laureate born on November 30, 1915 – died on November 16, 2005. Henry discovered important features in the behavior of atoms, molecules and mechanism of electrons transfer reactions.

Henry Taube was the winner of many notable medals and awards like President's National Medal of Science in the year of 1976, Nobel Prize in the field of chemistry in 1983, Priestley Medal [for distinguished services to chemistry] in the year of 1985.

In 1940s Taube carried out experiments with isotopes to show that in water solution the ions of metals form chemical bonds with several molecules of water and that the stability and geometric arrangement of the resulting hydrates or coordination compounds vary widely, depending on the identity and oxidation state of the ion.

Taube showed that, in an intermediate stage of the reaction, a chemical bond must form between one of the ions and a ligand that is still bonded to the other. This ligand acts as a temporary bridge between the two ions, and its bond to the original ion can later break in such a way as to effect. In 1952, Henry published a paper on the relation of the rates of chemical substitution to electronic structure.

Taube noticed a change in the electrical charge and shape of the molecules, and discovered that before electron transfer occurs, molecules often build a chemical bridge. The transfer of electrons across this chemical bridge speeds up reactions.

Redox Reactions 

This type of reactions also called as oxidation-reduction reactions. It can be defined as ‘transfer of electrons between two chemical species’.In this reactions both oxidation and as well as reduction processes will occur.The process behind most of these reactions might be ‘reductant transfers electrons to the oxidant.

In turn, the reductant or reducing agent loses electrons and is oxidized, and the oxidant or oxidizing agent gains electrons as well as reduced.The pair of an oxidizing and reducing agent that are involved in a particular reaction is called a redox pair’. Redox reactions are the major reactions in electrochemical cells, electroplating processes, compact discs production process.

Redox-reactions Applications 

Most of the changes which took place within living organisms are redox-reactions.

Examples

Biological redox-reactions

The digestion of food is an oxidation process where food molecules react with oxygen in the body to form carbon dioxide and water. During this reaction some amount of energy also released. Finally carbon dioxide and water which are formed first will eliminate as waste products and energy utilized for the chemical reactions of the body.

Food spoilage

Redox-reactions also play a vital role in food spoilage.

Electrochemical cells

Electrochemical cells which are used in electronic gadgets and equipments and electrical energy needed in the space capsule is obtained by the reaction of hydrogen and oxygen in fuel cells are working through redox-reactions.

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