O-phenylenediamine bridged polyaryloxy rare earth-magnesium heterometal complex as well as preparation method and application thereof

The invention provides an o-phenylenediamine bridged polyaryloxy rare earth-magnesium heterometal complex as well as a preparation method and application of the o-phenylenediamine bridged polyaryloxy rare earth-magnesium heterometal complex. The invention further discloses the application of the o-phenylenediamine bridged polyaryloxy rare earth-magnesium heterometal complex in catalytic preparation of aliphatic polycarbonate. The specific method comprises the step of: in a carbon dioxide atmosphere, taking cyclohexene oxide as a raw material, and carrying out a copolymerization reaction in an organic solvent under the catalytic action of an o-phenylenediamine bridged polyaryloxy rare earth-magnesium heterometal complex, so as to obtain aliphatic polycarbonate. The reaction method has the advantages of mild reaction conditions, high product selectivity and the like, and has a better polymerization effect even at normal temperature and normal pressure. 本发明提供一种邻苯二胺基桥联多芳氧基稀土-镁杂金属配合物及其制备方法与应用。所述邻苯二胺基桥联多芳氧基稀土-镁杂金属配