Influence of reaction conditions on the channel shape of 3d-4f heterometallic metal–organic framework†‡
Abstract
Three structural kinds of 3d-4f metal–organic-frameworks (MOFs), {[Ln4(ox)3(Ni(IDA)2)3(H2O)6]}n·xnH2O (Type I: LnLa, Nd, Eu, Gd; IDA = iminodiacetate, ox = oxalate), {[Ln2 (ox)(Ni(IDA)2)2(H2O)2]}n·2nH2O (Type II: LnLa, Pr, Nd, Eu) and {[Dy2(ox)2Ni(IDA)2(H2O)2]}n·2nH2O (Type III), have been synthesized under hydrothermal condition. The crystal structures consist of Ln-oxalate tetramers for Type I, dimers for Type II and one-dimensional