Tetra­kis(μ-4-tert-butyl­benzoato)-κ(3) O:O,O′;κ(3) O,O′:O′;κ(4) O:O′-bis­[aqua­bis­(4-tert-butyl­benzoato-κ(2) O,O′)(4-tert-butyl­benzoic acid-κO)praseodymium(III)]

The reaction of praseodymium nitrate and 4-tert-butyl­benzoic acid (tBBAH) in aqueous solution yielded the dinuclear title complex, [Pr(2)(C(11)H(13)O(2))(6)(C(11)H(14)O(2))(2)(H(2)O)(2)], which has non-crystallographic C(i) symmetry. The two Pr(III) ions are linked by two bridging and two bridging–chelating tBBA ligands, with a Pr⋯Pr separation of 4.0817 (9) Å. Each Pr(III) ion is nine-coordinated by one chelating tBBA ion, one monodentate tBBAH ligand and one water mol­ecule in a distorted tricapped trigonal–prismatic environment. The complex mol­ecules are linked into infinite chains along the c axis by inter­molecular O—H⋯O hydrogen bonds.