The Synthesis and Crystal Structures of Two-Dimensional Coordination Polymers of Ph₂P(O)−CH₂CH₂−P(O)Ph₂ and Ph₂P(O)−C₅H₃N−P(O)Ph₂ with Praseodymium

Reactions of Pr(NO₃)₃ with Ph₂P(O)−CH₂CH₂−P(O)Ph₂ and Ph₂P(O)−C₅H₃N−P(O)Ph₂ yielded layered network coordination polymers with bidentate ligands spanning the lanthanide atoms in a bridging fashion. The praseodymium cations with “spacer” ligands form two-dimensional building blocks assembling into either square grid or herringbone network.