Exercise 2. Coordination Complex Structure (a) Draw all the possible isomers of

Question

Exercise 2. Coordination Complex Structure (a) Draw all the possible isomers of compound [RuCl(pyr)(phen)aP+ (see #lv). Chiral molecules lack an improper rotational axis (Sn). Use this fact to show which of these isomers are achiral or chiral. (b) Draw structures for all possible tri- and tetradentate coordination modes of ligand 1 with an octahedral metal center. Do the same for a square planar metal center. (c) Ligand 1 forms a tetradentate complex with Cu(lI) in the complex [CCu.1]. Suggest a structure for this Cu(II) complex

Explanation / Answer

The complex [ Ru (pyr) Cl (phen)2 ] ^2+ represents M(aa)2bc which is octahedral in geometry

which can form cis and trans isomers

for cis form two mono dentate ie Cl and pyr at terminal and two bi dentate occupy remaining position and for trans

mono dentate are vertically opp to each other

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