Natalia and Belens work has been published in JACS. Their work introduces a pioneering methodology for the synthesis of heterometallic titanium frameworks amenable to the principles of reticular chemistry. Instead of relying in the serendipitous discovery of mixed-metal clusters by trial and error, we use heterometallic MOF crystals as precursors to direct the formation of SBUs with variable connection points by metal exchange reactions at low temperature. Click for more info