Solvothermal synthesis and characterization of new calcium carboxylates based on cluster- and rod-like building blocks

•Four calcium carboxylate frameworks were prepared.•Cluster- and rod-like building blocks in calcium(II) coordination polymers•Coordination polymers display lvt-b, pcu, and sql topologies.

Four new calcium carboxylate frameworks, namely Ca2(1,3-bdc)2(nmp)·0.5H2O (1), Ca(1,3-bdc)(pyr) (2), Ca3(1,4-bdc)3(nmp)2 (3), and Ca3(1,4-bdc)3(dmi)4 (4), have been prepared under solvothermal conditions. Compounds 1–3 have 3D framework structures based on rod-like building blocks, while compound 4 has a layered structure constructed from Ca3(CO2)6 clusters. Topological analyses reveal that compounds 2–4 have lvt-b, pcu, and sql topologies, respectively.

Graphical abstractFour calcium carboxylate frameworks have been synthesized under solvothermal conditions. These compounds display layered and framework structures constructed from cluster- and rod-like building blocks.Figure optionsDownload full-size imageDownload as PowerPoint slide