The study of the interaction mechanisms between water and layered silicates is central to the evaluation of the physicochemical properties of these materials, and it is an important ingredient in the assessment of the clays¿ usability in catalysts, waste disposal, and other applications. Although the swelling 2:1 layered silicates have been recognise traditionally as those containing a total layer charge between 0.4 and 1.8 units (smectite and vermiculite groups), a new family of compounds with different layer charge values, ranging between 2.0 and 4.0, has been very recently synthesized, which exhibit swelling properties. We plan to study the translational and rotational dynamics of water in these new clays, using quasi-elastic neutron scattering. Our main question is: at what stage will the interlayer water molecules become mobile in the highly confined system?