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

Forming ions, Write an equation that shows the formation of the selenide io...

Write an equation that shows the formation of the selenide ion from a neutral selenium atom

Optical glass, Optical glass: They contain phosphorous as replacement for ...

Optical glass: They contain phosphorous as replacement for most of all the silica and lead silicate, containing a little CaO 2 , the latter is capable of absorbing ultraviolet lig

Iodoform, preparation of iodoform

preparation of iodoform

Sis2 structure, what would be the structure of SiS2 edge sharing linking po...

what would be the structure of SiS2 edge sharing linking polyhedra?

Uncertainty in the position of a moving bullet of mass, The uncertainty in ...

The uncertainty in the position of a moving bullet of mass 10 gm is 10 -5 m  . Calculate the uncertainty in its velocity: (1) 5.2 x 10 -28 / sec                         (

Bioinorganic chemistry, BIOINORGANIC CHEMISTRY Life is sometimes thought...

BIOINORGANIC CHEMISTRY Life is sometimes thought of as 'carbon chemistry', but around 25 components are essential for life. It is normal to divide these into trace elements an

Energy cycle or metabolism - biomolecules, Energy cycle or metabolism A...

Energy cycle or metabolism A cell has small molecules that are denoted as micromolecules also large molecules that is denoted as macromolecules. The chemical equations of a liv

Determine the density of salt, A tank contains 50 gal of a solution of NaCl...

A tank contains 50 gal of a solution of NaCl in water (20% wt). To wash the tank, we supply fresh water at 10 gal/min and drain the tank at the constant rate of 10 gal/min. Determi

Organic, convert benzene to benzaldehyde

convert benzene to benzaldehyde

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