title: Metal-organic organopolymeric hybrid framework by reversible [2+2] cycloaddition reaction.
abstract: Organic polymers are usually amorphous or possess very low crystallinity. The metal complexes of organic polymeric ligands are also difficult to crystallize by traditional methods because of their poor solubilities and their 3D structures can not be determined by single-crystal X-ray crystallography owing to a lack of single crystals. Herein, we report the crystal structure of a 1D Zn(II) coordination polymer fused with an organic polymer ligand made in situ by a [2+2] cycloaddition reaction of a six-fold interpenetrated metal-organic framework. It is also shown that this organic polymer ligand can be depolymerized in a single-crystal-to-single-crystal (SCSC) fashion by heating. This strategy could potentially be extended to make a range of monocrystalline metal organopolymeric complexes and metal-organic organopolymeric hybrid materials. Such monocrystalline metal complexes of organic polymers have hitherto been inaccessible for materials researchers.
authors: Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju 660-701 (Republic of Korea).
authors: In-Hyeok
authors: IH
authors: Park
authors: Anjana
authors: A
authors: Chanthapally
authors: Zhenjie
authors: Z
authors: Zhang
authors: Shim Sung
authors: SS
authors: Lee
authors: Michael J
authors: MJ
authors: Zaworotko
authors: Jagadese J
authors: JJ
authors: Vittal
keywords: [2+2] cycloaddition; metal-organic frameworks; polymerization; single-crystal-to-single-crystal transformation; solid-state reactions