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Synthesis and Characterization of Novel Copper(II) 2D Coordination Polymers from a Fluorinated Flexible Ligand with Remarkable Clathration Ability

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Author(s): Tomohiro Beni | Kayoko Kasai

Journal: Polymers
ISSN 2073-4360

Volume: 3;
Issue: 4;
Start page: 1934;
Date: 2011;
Original page

Keywords: porous coordination networks | metal-organic frameworks | X-ray crystal structure

ABSTRACT
Two-dimensional (2D) grid coordination polymers were prepared by the reaction of 1,4-bis(4-pyridylmethyl)tetrafluorobenzene (bpf) with Cu(NO3)2 in the presence of aromatic compounds. Crystal structures of {[Cu(bpf)2(NO3)2]·(biphenyl)2}n (1), {[Cu(bpf)2(NO3)2]·(m-C6H4(OMe)2)2}n (2), {[Cu(bpf)2(NO3)2]·PhtBu}n (3) and {[Cu(bpf)2(NO3)(H2O)]NO3·(bpf)0.5}n (4) were determined. The grid networks were held together by C–H···O and C–H···F hydrogen bonds via the NO3− anions and the tetrafluorophenylene rings of bpf, respectively. Biphenyl, m-dimethoxybenzene, t-butylbenzene, and bpf molecules were clathrated in cyclic cavities of the grid networks through arene-perfluoroarene interactions. These coordination networks have remarkable clathration ability for aromatic compounds.

Tango Jona
Tangokurs Rapperswil-Jona

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