Show the nomenclature compounds, Chemistry

Q. Show the Nomenclature compounds?

In the earlier days naming of complexes was based on the colour of the complex. For example:

Compound                              Colour                                                Name

CoCI3, 4NH3,                            Green                                                  Praseocobaltic chloride

CoCI3, 5NH3                             Purple                                                Perpureocobaltic chloride

CoCI3, 5NH3,H20                      Red                                                     Roseocobaltic chloride

CoCI3, 6NH3,                           Orange-yellow                                 Luteocobaltic chloride

It is apparent that this system of naming cannot be useful when we are dealing with a large number of compounds. A summary of the rules of nomenclature as recommended by the International Union of Pure and Applied Chemistry (IUPAC) is given below:

If the complex is a salt, the cation is named first followed by the name of the anion. For example, in naming K2[PtCl6] we shall name potassium first followed by the name of  the anion. In another example of [Cu (NH3)4] Cl2, the name of the cation, [CU (NH3)5 will be placed before chloride ion.

For the complex entity, whether it is in cationic, anionic or neutral form, the name of the ligand(s) is put before the name of the metal atom. However, the reverse order is followed in writing the formula of the compound. For example in Cu(NH3)4]Cl2, we  shall name the four ammonla molecules first followed by copper and finally the  presence of chloride is mentioned; but in writing the formula copper is written before  ammonia molecules.

Posted Date: 7/10/2013 8:58:39 AM | Location : United States

Related Discussions:- Show the nomenclature compounds, Assignment Help, Ask Question on Show the nomenclature compounds, Get Answer, Expert's Help, Show the nomenclature compounds Discussions

Write discussion on Show the nomenclature compounds
Your posts are moderated
Related Questions
Gabriel phthalimide synthesis: This method includes the subsequent three steps. 1. Phthalimide is reacted along with KOH to form potassium phthalimide. 2. The potassium salt

How to prepare preparative TLC plates and how to separate compound by preparative TLC

Ask what are the benefit of fevorskii reaction question #Minimum 100 words accepted#

Define Degrees of freedom - phase rule and phase diagrams? Consider a system in an equilibrium state. In this state, the system has one or more phases; each phase contains one

There are thirty (30) electrons in benzene. This contains 24 carbon electrons and 6 hydrogen electrons. There are 12 electrons shared among C and H, and 18 among C and C. (6 electr

Amines - Nitrogen Containing Compounds 1. Amines are observed like derivatives of ammonia where one, two or all three hydrogen atoms are changed by alkyl or aryl group. 2. A

how many process there are to extracte copper from copperpyrites/

what is the chemistry behind the reactions of confirmatory test of sulphide radical of dilute acid group.

Petrochemicals - Characteristics of Hydrocarbons All such types of chemicals that are derived from petroleum or natural gas known as petrochemicals. Some chemicals that are fou

Determination of Molecular Mass - Victor Meyer method Molecular mass of volatile liquids and solids that can be easily ascertained from the application of Avogadro hypothesis a