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Coordination polymer
About: Coordination polymer is a research topic. Over the lifetime, 11988 publications have been published within this topic receiving 212219 citations.
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TL;DR: Crystal engineering of an organic ladder can be achieved with a T-shaped molecule, 4,4-bis(4'-hydroxyphenyl)-1-cyclohexanol, having three hydroxyl functionalities that can form O-H...O hydrogen-bonded helices.
53 citations
TL;DR: The unsymmetrical phosphorus ylide, Ph2PCH2CH2PPh2 C(H)C(O)Ph is shown to react with Hg(II) halides to form polymeric products with the composition {HgX2[PPh[PCH]2CH 2PPh 2C(H]C[O]Ph]}n, where X = Cl (1), Br (2), I (3) as mentioned in this paper.
53 citations
TL;DR: The self-assembly of ZnII, CdII, and CuII salts with the angular ligand 1,3,4-thiadiazole-2,5-di-3-pyridyl (L1) and three secondary ligands, 1, 3,di-4-polycyclic pyrazine (L2), 4,4′-dipyride (L3), and 2,3-dimethylpyrazine(L4), produced six new one-and two-dimensional bilayer coordination polymers
Abstract: The self-assembly of ZnII, CdII, and CuII salts with the angular ligand 1,3,4-thiadiazole-2,5-di-3-pyridyl (L1) and three secondary ligands, 1,3-di-4-pyridylpropane (L2), 4,4′-dipyridyl (L3), and 2,3-dimethylpyrazine (L4), produced six new one- and two-dimensional coordination polymers. The unusual two-dimensional bilayer coordination polymer [Zn(L1)(SO4)]n (1) obtained from L1, L3 (or L4), and ZnSO4·7H2O has SO42−-bridged chiral inorganic 1-D ladders that are wound by L1 from two unparallel directions to form a novel chiral channel structure. According to the same synthetic procedure of 1, only the displacement of L3 (or L4) with L2, however, afforded the one-dimensional coordination polymer {[Zn(L1)2(H2O)(SO4)](H2O)2}n (2). Interestingly, the elegant dipyridyl ligands L2, L3, and L4, unlike their analogue L1 coordinating to metal ions, affect the structural configuration of the resulting single crystals, even though they do not exist in these compounds. Another 2-D bilayer coordination polymer, [Cd(L1)(...
53 citations
TL;DR: The results suggest that the rational introduction of different halide anions into coordination polymers to realize multi-color LPL is promising for different domain applications, including imaging, anti-counterfeiting and security protection.
Abstract: Materials with tunable long persistent luminescence (LPL) properties have wide applications in security signs, anti-counterfeiting, data encrypting, and other fields. However, the majority of reported tunable LPL materials are pure organic molecules or polymers. Herein, a series of metal-organic coordination polymers displaying color-tunable LPL were synthesized by the self-assembly of HTzPTpy ligand with different cadmium halides (X=Cl, Br, and I). In the solid state, their LPL emission colors can be tuned by the time-evolution, as well as excitation and temperature variation, realizing multi-mode dynamic color tuning from green to yellow or green to red, and are the first such examples in single-component coordination polymer materials. Single-crystal X-ray diffraction analysis and theoretical calculations reveal that the modification of LPL is due to the balanced action from single molecule and aggregate triplet excited states caused by an external heavy-atom effect. The results show that the rational introduction of different halide anions into coordination polymers can realize multi-color LPL.
53 citations
TL;DR: The variable temperature magnetic susceptibility, X-ray crystallography, and Mössbauer and Raman spectra of a new dinuclear complex-based one-dimensional coordination polymer demonstrate a steep one-step [HS-HS] to [LS-LS] spin transition.
53 citations