Organically templated inorganic-organic hybrid metal (Zn and Cd) Sulfite-oxalates with layered and three-dimensional structuresElectronic supplementary information (ESI) available: Figure, PXRD data as pictures and post-calcinated PXRD picture, dipole moment calculation H-bonding interactions, complete bond lengths and bond angles as tables and X-ray crystallographic data in CIF format. CCDC 1431807 (1), 1431808 (2) and 1531878 (3). For ESI and crystallographic data in CIF or other electronic fo

We report single crystal X-ray investigations of three d 10 metal based oxalate-sulfite inorganic-organic hybrid open framework materials, namely [Zn 2 (SO 3 ) 2 (C 2 O 4 ) 0.5 (C 6 N 2 H 13 )]·(H 2 O) 2 , 1 , [C 4 N 2 H 12 ] 0.5 [Zn 2 (SO 3 ) 2 (C 2 O 4 ) 0.5 (H 2 O) 2 ], 2 and [C 4 N 2 H 12 ][Cd 2 (SO 3 ) 2 (C 2 O 4 )(H 2 O)]·H 2 O, 3 which show layered and three dimensional structures with different organic templates. These materials were synthesized under hydrothermal conditions and characterized by techniques such as single crystal X-ray diffraction, dipole moment calculations, FTIR, powder X-ray diffraction (PXRD), thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The common feature for 1 and 2 is the interconnection of embedded zinc-sulfite chains via oxalate anions in the framework and in 3 , cadmium-oxalate chains are interconnected via sulfite anions. The coordination geometries of metal( ii ) ions vary significantly resulting in a ladder-like layered structure in the case of 1 , a 3D framework in case of 2 and a layered structure with an embedded one-dimensional channel in 3 . The observed structures can also be partly attributed to the influence exerted by the presence of different structure directing agents (SDA) in the lattice. The dipole moments for metal polyhedra 1 , 2 and 3 were calculated from bond valence analyses and are 2.39 D for Zn(1)O 4 N polyhedra and 1.66 D for Zn(2)O 4 polyhedra in 1 , 24.90 D for Zn(1)O 6 and 29.52 D for Zn(2)O 4 in 2 and 5.82 D for Cd(1)O 7 and 2.90 D for Cd(2)O 6 in 3 . Single crystal X-ray investigations of three d 10 metal based oxalate-sulfite inorganic-organic hybrid open framework materials which show layered and three dimensional structures with different organic templates.