Two Homochiral Bimetallic Metal鈥揙rganic Frameworks Composed of a Paramagnetic Metalloligand and Chiral Camphorates: Multifunctional Properties of Sorption, Magnetism, and Enantioselective Separation

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• 作者：Dae Won Ryu ; Woo Ram Lee ; Kwang Soo Lim ; Won Ju Phang ; Chang Seop Hong
• 刊名：Crystal Growth & Design
• 出版年：2014
• 出版时间：December 3, 2014
• 年：2014
• 卷：14
• 期：12
• 页码：6472-6477
• 全文大小：416K
• ISSN：1528-7505

文摘

Two porous metal鈥搊rganic frameworks [Co(Tt)₂][Cu₄(D-cam)₄]路5H₂O路DMF (1; Tt = tris(triazolyl)borate, D-H₂cam = d-(+)-camphoric acid or (1R,3S)-1,2,2-trimethyl-1,3-cyclopentanedicarboxylic acid) and [Co(Tt)₂][Cu₄(L-cam)₄]路5H₂O路2DMF (2; L-H₂cam = l-(鈭?-camphoric acid or (1S,3R)-1,2,2-trimethyl-1,3-cyclopentanedicarboxylic acid) were prepared by mixing Cu²⁺, Co(Tt), and camphoric acid under solvothermal conditions. The structures of 1 and 2 reveal that the two-dimensional layers composed of chiral ligands and Cu-Cu paddlewheel units are connected through the metalloligands to form three-dimensional networks. It is noted that these solids show multifunctional properties such as gas adsorption onto the pores of the frameworks, antiferromagnetic coupling between spin carriers, and a small enantioselective separation of racemic alcohols.