Citation: Serre, Christian; Groves, John A.; Lightfoot, Philip; Slawin, Alexandra M. Z.; Wright, Paul A.; Stock, Norbert; Bein, Thomas; Haouas, Mohamed; Taulelle, Francis; F\'erey, G\'erard (2006). Synthesis, Structure and Properties of Related MicroporousN,N‘-Piperazinebismethylenephosphonates of Aluminum and Titanium. Chemistry of Materials, 18, pp. 1451-.