Tris- ethane-1,2-diamine ligands

The synthesis of quadridentate imine chelates usually requires the combination of two equivalents of the carbonyl compound and a diamine, as in the formation of complexes of ligands (6),17 18 (7)19 and (8).20,21 In similar fashion, thermodynamic template reactions allow the very effective synthesis of quinquedentate and sexadentate metal complexes of ligands such as (9),22 (10),23 (ll),24 (12)25 and (13).26 Condensation of 1,1,1-tris(aminomethyl)ethane with pyridine-2-carbaldehyde alone yields... 

References in this section are arranged according to ligand type, starting with pentammine complexes and continuing through tetrammines and bis-ethane-1,2-diamine complexes to complexes containing N4 macrocycles. A solitary tris-j8-diketonate reference then precedes the final citations of relevant review articles. 

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