Cation-directed assembly of polyrotaxane and polycatenane. Issue 15 (29th March 2016)

• Record Type: Journal Article
• Authors: Ju, Huiyeong; Lee, Eunji; Kim, Seulgi; Park, In-Hyeok; Lee, Joon-Hwa; Lee, Shim Sung
• Is Part Of: CrystEngComm. Volume 18:Issue 15(2016)
• Page Start: 2621
• Page End: 2625
• Publication Date: 2016-03-29
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/c6ce00551a
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : By employing a mixture of one V-shaped dicarboxylate ligand and one dipyridyl linker ligand, we have prepared two mechanically interlocked products, displaying an infinite 1D polyrotaxane structure and a 3D polycatenane structure depending on the metal ions used. Abstract : Divalent metal (Pb or Zn) coordination polymers containing 1, 4-bis(4-pyridyl)piperazine (bpp) and 4, 4′-sulfonyldibenzoic acid (H2 sdb) exhibit different interlocked topologies. In [Pb2 (sdb)2 (bpp)] n (1 ), two Pb(ii ) generate Pb2 (sdb)2 metallacycles connected by bpp ligands, leading to the formation of a 1D + 1D → 1D polyrotaxane. In contrast, in {[Zn2 (sdb)2 (bpp)2 ]·2DMA} n (2 ), tetrameric metallacycles Zn4 (sdb)4 are interlocked, generating 1D polycatenated chains in a parallel manner and are further pillared by bpp ligands to build a 3D framework.