Sonochemical temperature controlled synthesis of pellet-, laminate- and rice grain-like morphologies of a Cu(II) porous metal–organic framework nano-structures

• Nano-structures of the Cu(II) metal–organic framework have been synthesized.
• The products were characterized by scanning electron microscopy and X-ray powder diffraction.
• The sonochemical method is used for preparation of metal–organic framework.

Nano-structures of the Cu(II) metal–organic framework, {Cu(BDT)(DMF)·CH3OH·0.25DMF}n (1), which BDT2− is 1,4-benzeneditetrazolate, have been synthesized by the reaction of H2BDT with Cu(NO3)2·6H2O via ultrasonic irradiation in three different temperatures, which causes different morphologies. The products were characterized by IR spectroscopy, elemental analysis, scanning electron microscopy and X-ray powder diffraction. This study demonstrates that sonochemistry is a suitable method for preparation of metal–organic framework nano-structures and temperature is an effective parameter on morphologies of Cu(II) metal–organic framework nano-structures.