Crystal-to-crystal transformation from a chain compound to a layered coordination polymer†
Abstract
A crystal-to-crystal transformation was observed from a green chain compound CuBr2(1,4-dioxane)2(H2O)2 (1) to a brown layered compound (CuBr2)3(1,4-dioxane)2 (2). The hydrogen bond connecting chains in 1 were replaced by a μ-Br bridge in 2 and the antiferromagnetic interaction between the metal atoms in 2 became stronger than in 1.