Ligand Substitution Reactions

Ligand substitution reactions of tranisition metals required for OCR Chemistry A (A2)

HideShow resource information
  • Created by: Ella
  • Created on: 18-05-15 11:56
Preview of Ligand Substitution Reactions

First 152 words of the document:

[Cu(H2O)6]2+ + 2NH3 [Cu(H2O)4(OH)2] + 2NH4+
Clear blue Ammonia Bright blue precipitate
solution acting as base
[Cu(H2O)6]2+ + 4NH3 [Cu(NH3)4(H2O)2]2+ + 4H2O
Clear blue Ligand exchange Dark blue (Blue precipitate
solution excess ammonia solution dissolves)
[Cu(H2O)6]2+ + 4Cl- [CuCl4]2- + 6H2O
(Reversible reaction,
Clear blue conc. HCl Green mix of green and
Solution ligand exchange solution yellow colours)
2+ +
[Co(H2O)6] + 2NH3 [Co(H2O)4(OH)2] + 2NH4
Clear pink Ammonia Green precipitate (Different hydroxide
precipitate colour)
solution acting as base
[Co(H2O)6]2+ + 6NH3 [Co(NH3)6]2+ + 6H2O
Clear pink Ligand exchange Brown (left to stand, turns
solution excess ammonia solution black, [Co(NH3)6]3+)
[Co(H2O)6]2+ + 4Cl- [CoCl4]2- + 6H2O
Clear pink conc. HCl Blue
Solution ligand exchange solution


No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all resources »