Two novel pillared-layer lanthanide borates built by Ln@B12O28/29 ring clusters and dicarboxylate linkers (Ln = Pr, Nd)†
Abstract
Two organic–inorganic hybrid pillared-layer lanthanide borates, [Ln2B8O12(bdc)3(H2O)]·H2O (Ln = Pr, 1; Nd, 2; H2bdc = 1,4-benzene dicarboxylic acid), have been made, in which inorganic layers are built by Ln-centred oxoboron ring clusters, Ln@B12O28/Ln@B12O29, while the pillars are organic bdc linkers. Interestingly, two types of linkages, Ln–O–C and B–O–C bonds, exist in the structures, showing firstly novel linking modes between inorganic polyborate and organic dicarboxylate.