A new open-framework indium phosphate-phosphite containing intersecting extra-large 16-ring channels

A new open-framework indium phosphate-phosphite [In(9)(H(2)O)(6)(HPO(3))(13)(H(2)PO(3))(2)(PO(4))(HPO(4))] [(C(6)N(2)H(18))(3)] (InHPO-CJ1) has been hydrothermally synthesized by using 2-methyl-1,5-pentanediamine (MPMD) as the structure-directing agent. It presents a unique pillar-layer framework topology containing three-dimensional intersecting extra-large 16-ring channels. (31)P MAS NMR has been studied to confirm the four different coordinations of P atoms in the as-synthesized compound. (C) 2011 Elsevier B.V. All rights reserved.