Shapes of complex ions
Shapes of complex ions
Real World
The deep blue colour of [Cu(NH₃)₄(H₂O)₂]²⁺ is used in Schweizer's reagent to dissolve cellulose in rayon production, while the yellow [CuCl₄]²⁻ tetrahedral complex gives certain mineral deposits their distinctive colour.
Exam Focus
Link coordination number to shape explicitly: 6 = octahedral, 4 = tetrahedral or square planar, 2 = linear.
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