Two new bismuth salts with succinic acid: synthesis, structural, spectroscopic and thermal characterization.

Two novel bismuth succinate hydrates, namely, poly[[diaqua(μ-butane-1,4-dicarboxylato)hemi(μ-butane-1,4-dicarboxylato)bismuth] monohydrate], {[Bi(CHO)(HO)]·HO} (1), and poly[[μ-aqua-aqua(μ-butane-1,4-dicarboxylato)(μ-butane-1,4-dicarboxylato)-μ-oxido-dibismuth] monohydrate], {[Bi(CHO)O(HO)]·HO} (2), have been synthesized. Their crystal structures were determined by single-crystal X-ray diffraction and the compounds were characterized by IR and Raman spectroscopy, powder X-ray diffraction and thermal analysis. The crystal structure analysis revealed that the compounds are coordination polymers, with 1 having a two-dimensional layered structure and 2 displaying a three-dimensional (3D) framework.