Applications of Coordination Compounds Flashcards
Excess of copper and iron are removed by the chelating ligands
D-penicillamine and desferrioxime B
EDTA is used for the treatment of
Lead poisoning
Growth of tumours is inhibited by some coordination compounds of
Platinum (e.g., cis-platin)
In black and white photography, the developed film is fixed by washing with hypo solution which dissolves the undecomposed AgBr to form a complex ion
[Ag(S2O3)2]3-
Electroplating articles with silver and gold is smoother when instead of solutions of simple metal ions we use solutions of the complexes
[Ag(CN)2]- and [Au(CN)2]-
Rhodium complex, [(Ph3P)3RhCl], a Wilkinson catalyst is used for
Hydrogenation of alkenes
Mention the important coordination compounds in biological systems.
Chlorophyll - magnesium
Haemoglobin - iron
Vitamin B12, cyanocobalamine, the anti-pernicious anaemia factor - cobalt
Name 2 enzymes with coordination metal ions
carboxypeptidase A and carbonic anhydrase
Hardness of water can be estimated by simple titration with
Na2EDTA
The Ca2+ and Mg2+ ions form stable complexes with EDTA.
The coordination compounds used for qualitative and quantitative chemical analysis are
EDTA, DMG (dimethylglyoxime) (detects Ni), alpha-nitroso-beta-naphthol (detects Co), cupron
Applications of coordination compounds in metal industry
- Some imp extraction processes of metals, like those of silver and gold, make use of complex formation. Metals form complexes with cyanide and are then precipitated by adding zinc.
- Purification of metals can be achieved through formation and subsequent decomposition of their coordination compounds.
(e.g., nickel to [Ni(CO)4] )
