1. Introduction 2. Quantum Calculation on Actinides 2.1 Half-sandwich Structure With Yb 2.2 Pu(III) and Pu(IV) Chloro Complexes 2.3 Hydrolyzed Pu(III) and Pu(IV) Complexes 2.4 U(IV)-PNPP Complex in Water 2.5 Am(III)-Oxalate Complex in Water 3. Conclusion REFERENCES