One, Two, Mystery... Coordination Chemistry!

ISBN-13: 9786204752785 / Angielski / Miękka / 160 str.

Pourya Zarshenas

Opis

A coordination complex consists of a central atom or ion, which is usually metallic and is called the coordination center, and a surrounding array of bound molecules or ions, that are in turn known as ligands or complexing agents. Many metal-containing compounds, especially those that include transition metals (elements like titanium that belong to the Periodic Table's d-block), are coordination complexes.Coordination chemistry emerged from the work of Alfred Werner, a Swiss chemist who examined different compounds composed of cobalt (III) chloride and ammonia. Upon the addition of hydrochloric acid, Werner observed that ammonia could not be completely removed. He then proposed that the ammonia must be bound more tightly to the central cobalt ion. However, when aqueous silver nitrate was added, one of the products formed was solid silver chloride. The amount of silver chloride formed was related to the number of ammonia molecules bound to the cobalt (III) chloride. For example, when silver nitrate was added to CoCl3-6NH3, all three chlorides were converted to silver chloride. However, when silver nitrate was added to CoCl3-5NH3, only 2 of the 3 chlorides formed silver chloride.

O autorze

Zarshenas, PouryaMaster of Inorganic Chemistry from Shahid Beheshti Universiy(SBU) and Polymer & Catalyst Chemistry from Azad University(IAU).Concerned about global issues of water, energy, environment and sustainable development; With a history of attending in 85 conferences, Writing 116 article & 46 book and Winner of 12 National & International awards.