校園頭條

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化學系王志傑教授發表最新期刊論文

A 3d-4f Complex Constructed by the Assembly of a Cationic Template, [Cu(en)₂]²⁺, and a 3D Anionic Coordination Polymer, [Sm₂(C₂O₄)₃(C₅O₅)(H₂O)₂]^2–

作者：Ke, Szu-Yu ; Yeh, Chang-Tsung ; Wang, Chih-Chieh ; Lee, Gene-Hsiang ; Sheu, Hwo-Shuenn

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE，卷：643  期：10  頁碼：657-663，出版日期： 2017年5月18日 (SCI)

摘要：

A three-dimensional (3D) 3d-4f complex, [Cu(en)₂][Sm₂(C₅O₅)(C₂O₄)₃(H₂O)₂]·8H₂O (1) (en = ethylenediamine, C₅O₅^2– = dianion of 4,5-dihydroxycyclopent-4-ene-1,2,3-trione), were prepared via the in-situ ring-opening oxidation reaction of croconate in the presence of the template-directed complex, [Cu(en)₂]²⁺ cation. The structural characterization determined by X-ray diffraction determination reveals that the 3D anionic coordination polymer of [Sm₂(C₂O₄)₃(C₅O₅)(H₂O)₂]^2– in 1 can be describe in terms of in-plane 2D honeycomb-like [Sm₂(C₂O₄)₃] layered frameworks bridged by oxalate with bis-chelating mode, being mutually interlinked via the bridge of μ_1,2,3,4-croconate ligands with bis-chelating coordination mode to complete the 3D open framework, which gives rise to 1D channels with pore size of 14.023×11.893 Å angstrom (longest atom-atom contact distances) along the b axis. The structure-directing complex, [Cu(en)₂]²⁺, and solvated water molecules are resided into these honeycomb-type hexagonal channels. The thermal stability of 1 was further studied by TGA and in-situ powder X-ray diffraction measurement.

關鍵字

作者關鍵字：Coordination polymer; Host-guest chemistry; Samarium; Copper; Hydrogen bonds

KeyWords Plus：METAL-ORGANIC FRAMEWORK; CRYSTAL-STRUCTURE; MAGNETIC-PROPERTIES; COPPER(II) COMPLEXES; OXOCARBON DIANIONS; SURFACE-AREA; CROCONATE; OXALATES; ETHYLENEDIAMINE; CHANNELS

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