Explain about coordination compound, Chemistry

Assignment Help:

Q. Explain about coordination compound?

These compounds are usually formed by the donation of pair of electrons to the central metal ion by the group of ions or molecules. The bond so formed is called a coordinate bond and hence the name coordination compound. However, such a simple donor-acceptor bond approach does not seem to apply to all types of coordination compounds. In the following discussion we shall not only restrict ourselves to those complexes where the central atom or ion is a metal or more specifically a transition metal, but also exclude a class of compounds known as double salts, addition products and organometallic compounds. It will be useful to briefly define these compounds to avoid any future confusion. Double salts, as you know, are compounds such as alums where two salts crystallise together as one solid but when dissolved in water they dissociate into their constituent ions. For example, a compound like potash alum, K2Al2 (SO4)42.4H20 or KAI(S04)2.12H20, when dissolved in water dissociates to give K+, Al3+. SO2-4 ions. A complex shows different properties from the original constituents and generally does not dissociate into component ions. In case of addition products, two apparently stable compounds such as NH3 and BF3 when brought together result in the formation of a compound called addition product or simply adduct with the formulation NH3. BF3. The formation of such a compound is no doubt due to donation of a pair of electrons from nitrogen atom of NH3 molecule to the boron atom 6f BF3; but we cannot assign the role of a central atom to any particular atom on the resultant molecule. Organometallic compounds are those compounds where the central metal atom or ion is directly attached to at least one carbon atom of a molecule. A complex compound could be neutral, cationic or anionic depending upon the total charge carried by the complex species.


Related Discussions:- Explain about coordination compound

Electron enters the sub-shell for which value is minimum, Electron enters t...

Electron enters the sub-shell for which (n+l)  value is minimum. This is enunciated as: (1) Hund's rule (2) Aufbau principle (3) Heisenberg uncertainty principle (4) P

Liquefaction of gases, Assainment of liquefaction of gases in degr...

Assainment of liquefaction of gases in degree 2 nd sem

Conductivity, List three factor that affect conductivity

List three factor that affect conductivity

Chemsitry, Calculate how the internal energy stored in one O-H bond of H20 ...

Calculate how the internal energy stored in one O-H bond of H20 Consider the following chemical reaction H20(g)-->2H(g) + O(g) at 298.15 K and 1.00 Bar fH* [H(g)]=218.0 kJ/mole fH*

Determination of a given acetic acid solution, THE VOLUMETRIC DETERMINATION...

THE VOLUMETRIC DETERMINATION OF A GIVEN ACETIC ACID SOLUTION REQUIRED BY USING 100 ML. OF A STANDARD CAUSTIC SODA SOLUTION. Compound Microscope 1. Procedure for st

Symmetry, character table symmetry element ammonia

character table symmetry element ammonia

., why we consider carbon as standared for atomic mass unit

why we consider carbon as standared for atomic mass unit

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd