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• W2059308959 endingPage "9798" @default.
• W2059308959 startingPage "9798" @default.
• W2059308959 abstract "A rare case in the design of a V-shaped polycarboxylate Ni(II)-based chiral coordination polymer from achiral ligands is described. Four metal–organic coordination networks, namely [Ni2(hfdpa)(bpypip)2(H2O)2](bpypip)·2.5H2O (1), [Ni3(Hodpa)2(bpypip)3(H2O)9] (2), [Ni2(odpa)(bpypip)2(H2O)2] (3), and [Cd2(bptc)(bpypip)2(H2O)2]·H2O (4), where H4hfdpa = 4,4′-(hexafluoroisopropylidene)diphthalic acid, H4odpa = 4,4′-oxydiphthalic acid, H4bptc = benzophenone-3,3′,4,4′-tetracarboxylic acid, and bpypip = N,N′-bis(pyrid-4-yl)piperazine, were prepared via a hydrothermal process. The structure of 1 exhibits a chiral three-dimensional porous framework, featuring left-handed Ni–O2C 21-screw helical chains along the crystallographic b axis and rectangular-shaped tubular open channels occupied by the uncoordinated bpypip and water molecules. Compound 2 possesses a 2-fold 2D + 2D → 2D interwoven sheet structure that is arranged interdigitally along the crystallographic a axis, forming an extensive three-dimensional supramolecular network through hydrogen-bonding. The structure of 3 shows a complicated 1D + 1D → 3D polyrotaxane coordination polymer entanglement, which suits a four-connected {6482}-net resembling the topology of a cds-net. Compound 4 has a complicated 2D + 2D → 3D coordination framework, which is simplified into a six-connected {496482}-net. In comparison with the crystal structures of the products, the uncoordinated bpypip ligands in 1, along with the guest water molecules, acts as a key for interacting with the coordinated V-shaped polycarboxylate hfdpa and coordinated bpypip ligands through simultaneous C–H⋯F, C–H⋯O, and C–H⋯N hydrogen-bonding, thereby assisting the generation of the chiral NiII coordination polymer. This type of host–guest key–lock interaction is unique and is observed for the first time by controlling the formation of a chiral coordination polymer." @default.
• W2059308959 created "2016-06-24" @default.
• W2059308959 creator A5013634993 @default.
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• W2059308959 date "2013-01-01" @default.
• W2059308959 modified "2023-09-23" @default.
• W2059308959 title "Host–guest key–lock hydrogen-bonding interactions: a rare case in the design of a V-shaped polycarboxylate Ni(ii)-based chiral coordination polymer" @default.
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• W2059308959 doi "https://doi.org/10.1039/c3ce41047a" @default.
• W2059308959 hasPublicationYear "2013" @default.
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