Herein, we report the application of four amino-tris(phenolate)-based metal complexes incorporating Ti(IV) or Zr(IV) centres (2a-3b) as homogeneous catalysts for conversion CO2 and epoxides into cyclic carbonates. The were synthesised, characterised then evaluated in combination with tetrabutylammonium iodide, bromide chloride binary catalytic systems reaction 1,2-epoxyhexane epoxide substrate ...