Abstract
A Cd(II) based metal–organic framework (MOF) Cd3(cis-muco)3(2,2′-bpy)2 (1); (H2cis-muco = cis, cis-muconic acid and 2,2′-bpy = 2,2′-bipyridine) has been synthesized by slow diffusion method in a single pot technique. Single crystal X-ray analysis reveals that compound 1 crystallizes in the monoclinic system, space group C2/c with a = 27.3596(14) Å, b = 8.2557(4) Å, c = 17.7167(9) Å, β = 109.8670(10)° and V = 3763.6(3) Å3. Interestingly, compound 1 consists of trinuclear linear Cd3 secondary building units (SBUs), which are connected through cis,cis-muco ligands to give rise to a two-dimensional (2D) Shubnikov (3,6) plane net topology with Schläfli symbol 364653. Due to the presence of hydrogen bonding and π···π interactions, 2D structures further assemble to produce a three-dimensional (3D) architecture. The extent of non-covalent interactions in crystal packing was investigated using Hirshfeld surface analysis. Photoluminescence spectra of the prepared compound 1 have also been obtained. The resulting compound was found to display bathocromic shifts, which can contribute towards making of a suitable luminescent probe.
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