Control of Structural Ordering in Crystalline Lamellar Aluminophosphates with Periodicity from 51 to 62 Å

Long-chain diamines have been employed in a strategy designed to enhance host−guest interactions and to promote the effective communication between different host−guest interaction sites. This strategy makes it possible to utilize organic guest species to significantly expand the spacing between polymeric inorganic sheets without losing the atomic registry between inorganic layers. Aluminophosphate sheets with large interlayer spacing and unusually long periodicity (the length of the c axis from 51 to 62 Å) have been obtained using NH2(CH2)nNH2 (n = 9, 10, 11, or 12) as structure-directing agents.