Metal-organic frameworks with achiral/monochiral nano-channels

Three pH/temperature-dependent 2D MOFs containing 1D nanotubular mesa-helical chains were firstly synthesized from multidentate 2,4(1)-H(2)bpdc. Crystal structure analysis shows that 2 and 3 are monochiral and the resultant crystals were not racemic as evidenced by the observation of strong signals in vibrational circular dichroism (VCD) and circular dichroism (CD) spectra.