Javier Castells & Natalia M. Padials work has just been published as a Very Important Paper in Angewandte Chemie Int. Ed. The work describes a new family of heterometallic Titanium(IV)-based Metal Organic Frameworks, namely MUV-10, that can be produced in gram quantity and show remarkable stability in water. Moreover, the paper shows how the electronic structure of these materials can be tuned through the heterometallic centres by means of metal doping, which is further supported by theoretical calculations and by photocatalytic H2 production from water, in collaboration with Hermenegildo Garcías group at ITQ. For more info see here