Nanoscale layered K2Ti4O9 was prepared by solid-state method using nanosca le TiO2 with average particle size of 20 nm as the raw material. The obtained na noscale K2Ti4O9 was further used as the host material for the preparation of Al2 O3 pillared K2Ti4O9 and the K2Ti4O9 was undergone H+-exchange, alkylamine-pre-ex pansion, Keggin-pillaring and heat-treatment. The products were characterized by XRD, TEM and BET methods. The interlayer distance of K2Ti4O9 was expanded step by step during the pillaring procedure and the Al2O3 pillared H2Ti4O9 with narro w pore-size distribution and high surface area (212.8 m2·g-1) was obtained.
The complex has been synthesized and characterized by spectroscopic techniques and single crystal X ray analysis. The crystal is orthorhombic , space group P212121 with a=1.6620(3)nm, b=1.7300(4)nm, c=0.5450(1)nm and Z=4. In the crystal lattice, the molecules create a two dimensional network structure through hydrogen bonds. The C-H…O intermolecular hydrogen bonds connect the title complex to form layer supermolecular plane structure perpendicular to the axis b, with the layers stacked by the Van der Waals interaction. CCDC: 195309.
