Isomerism in d-block metal complexes

  In this book so far, we have not mentioned isomerism very often, and most references have been to trans- and cis-isomers, e.g. trans-[CaI₂)THF(₄] and the trans- and cis-isomers of N₂F₂. These are geometrical isomers, and our previous discussion of this topic will not be elaborated further here.

Self-study exercises

1. Draw possible structures for the square planar complexes [PtBr₂(py)₂] and [PtCl₃(PEt₃)]^-and give names to distinguish between any isomers that you have drawn.

2. In [Ru(CO)₄(PPh₃)], the Ru centre is in a trigonal bipyramidal environment. Draw the structures of possible isomers and give names to distinguish between them.

3. Draw the structures and name the isomers of octahedral [CrCl₂(NH₃)₄]‏⁺.

4. Octahedral [RhCl₃(H₂O)₃] has two isomers. Draw their structures and give them distinguishing names.

   In this section, we shall be concerned with other types of isomerism exhibited by d-block metal complexes, and we use a classification that goes back to the work of Werner (Figure 1.1).

Fig. 1.1 Classification of types of isomerism in metal complexes.

مواضيع ذات صلة

ايجاد الصيغة التركيبية للمعقدات

معقدات الخارصين

معقدات النحاس

كيمياء ومعقدات بعض عناصر السلسلة الانتقالية الاولى

تعريف المركبات المعقدة

Crystal Field Stabilization Energies

Colors of Transition-Metal Complexes

The Nature of the Ligands

Principal Quantum Number of the Metal

Charge on the Metal Ion

Factors That Affect the Magnitude of Δo

Electronic Structures of Metal Complexes