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

Polymers

Tomohiro Beni¹ 

[1] Department of Science Education, Miyagi University of Education, 149 Aoba, Aramaki, Aoba-ku, Sendai 980-0845, Japan; E-mail

关键词: porous coordination networks;    metal-organic frameworks;    X-ray crystal structure;   

DOI  :  10.3390/polym3041934

来源: mdpi

【 摘 要 】

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]·Ph^tBu}_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.

【 授权许可】

CC BY   
© 2011 by the authors; licensee MDPI, Basel, Switzerland.