Synthesis and Characterization of the Germanium Sulfonate Ge(CH3SO3)2 – a 3D Coordination Network Solid

The reaction of germanium(II)-bis(2-methoxyphenyl)methoxide with methanesulfonic acid provides the germanium(II) sulfonate Ge(CH3SO3)(2) (1), which was characterized by X-ray diffraction, elemental analysis, NMR spectroscopy, and IR spectroscopy. The decomposition process of 1 was investigated by thermal gravimetric analysis (TGA) and temperature-dependent X-ray powder diffraction (PXRD) and both are consistent with the formation of GeO2 as major final product. Single crystal X-ray diffraction at 110 K revealed the chiral tetragonal space group P4(1)2(1)2 and formation of a three-dimensional (3D) coordination network solid. The 3D network is composed of interconnected twenty four-membered rings comprising bridging methanesulfonate groups, which link the germanium atoms.