Notash Behrouz, Farhadi Rodbari Mona, Gallo Gianpiero, Dinnebier Robert
Department of Inorganic Chemistry and Catalysis, Shahid Beheshti University, 19839 69411, Tehran, Iran.
Max Planck Institute for Solid State Research, Heisenberg strasse 1, D-70569 Stuttgart, Germany.
Inorg Chem. 2021 Jun 21;60(12):9212-9223. doi: 10.1021/acs.inorgchem.1c01360. Epub 2021 May 28.
Three cadmium coordination polymers, namely, {CdL(OAc)} (), {CdL(OAc)} (), and [CdL(OAc)(HO)] (), were synthesized by an exoditopic 1,4-bis(4-pyridyl)-2,3-diaza-1,3-butadiene Schiff base ligand () and cadmium acetate in the presence of different solvent systems. Single-crystal X-ray diffraction, powder X-ray diffraction, and thermogravimetric analysis showed that 1D ladder pseudopolymorphic compounds ( and ) transformed to the solvent-free 1D linear compound through a rare case of water absorption from air at room temperature. Interestingly, compound was transformed to compound through a dissolution-recrystallization structural transformation process. The results illustrated that solvents and humidity have an important role in the formation of pseudopolymorphs with the same or different structural motifs.
