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

Alcoholic Acidity, Why using factor 24.52 in Alcoholic Acidity

Why using factor 24.52 in Alcoholic Acidity

What will be the relation between rate constant, Evaluate the relation betw...

Evaluate the relation between rate constant k 1 and k 2 of a first order reaction when temperature changes from 270 K to 300 K and activation energy is zero?

Longest chain rule - iupac system of nomenclature, Longest chain Rule - IUP...

Longest chain Rule - IUPAC system of nomenclature The primary step in naming an organic compound is to choose the longest continuous chain of carbon atoms that may or may not

Electron density vs internuclear distance, Electron density vs internuclear...

Electron density vs internuclear distance   Electronic density

Potentio meter, hoe to calibrate potentio meter in lab ?

hoe to calibrate potentio meter in lab ?

#, what groups comprise each block of element?

what groups comprise each block of element?

Chemical bonding, H2,Li2,B2 each has bond order equal to 1 , the order o...

H2,Li2,B2 each has bond order equal to 1 , the order of stability is

You, one two three four get on the dance floor..

one two three four get on the dance floor..

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