December 2011
Beginner
560 pages
12h 42m
English
Many metal ions form aggregate with Lewis bases which are stable in solution, such species are known as coordination compounds or complex compounds. A complex may be positive ion, a negative ion or even neutral. It depends upon the charge of the metal ion and the donor. Example,
[Co(NH3)6]+3, |
O.N.of cobalt is +3 and NH3 is neutral. |
[Fe(CH6]4−, |
O.N. of iron is Fe2+ and cyanide ion (CN) is uninegative |
[Cu(H2NCH2OO−)2], |
O.N. of copper is +2 and glycinate ion is uninegative. |
Complex compound are made by chemical species which have independent existence, such as Co+3, Fe3+, Cu2+, NH3 CN− etc. Thus, complexes are chemical compounds which contain a metal ion, surrounded by Lewis bases and the aggregate retain ...
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