The synthesis of four lanthanide coordination polymers, [Ln(Dcam)(NO3)(MeOH)2]n (Ln = Pr?1, Nd?2, Sm?3, and Eu?4; d-H2cam = (+) d-camphoric acid) under solvothermal conditions is reported. Single-crystal X-ray diffraction analyses revealed that the compounds Pr?1-Eu?4 are isostructural and crystallize in the monoclinic space group P21/n. The structures of the compounds are consisted a dimeric sub-building unit (SUB) of [Ln2(O2CR)4(NO3)2(MeOH)4], which is covalently-linked by cam2- to a 2D grid layer and the layer is extended into a 3D supramolecular network by hydrogen bonding. The room temperature-photophysical properties of compounds Eu?4 were investigated and the direct current (dc) magnetic susceptibility of compounds Pr?1-Eu?4 were collected. The findings indicate that compounds Pr?1-Eu?4 are capable of both antiferromagnetic and spin-orbital interactions. ? 2013 Elsevier Ltd. All rights reserved.
