Interweaving 3D Network with Double Helical Tubes Filled by 1D Coordination Polymer Chains

2004 ◽  
Vol 43 (21) ◽  
pp. 6525-6527 ◽  
Author(s):  
E Yang ◽  
Jian Zhang ◽  
Zhao-Ji Li ◽  
Song Gao ◽  
Yao Kang ◽  
...  



2008 ◽  
Vol 181 (9) ◽  
pp. 2406-2411 ◽  
Author(s):  
Gaijuan Li ◽  
Yan Xing ◽  
Shuyan Song ◽  
Ning Xu ◽  
Xianchun Liu ◽  
...  


Molecules ◽  
2018 ◽  
Vol 24 (1) ◽  
pp. 6 ◽  
Author(s):  
Na Zhao ◽  
Yu Li ◽  
Jinzhong Gu ◽  
Tiago Fernandes ◽  
Marina Kirillova ◽  
...  

Two new copper(II) coordination compounds, namely a 1D coordination polymer [Cu(µ-cpna)(phen)(H2O)]n (1) and a discrete tetracopper(II) derivative [Cu(phen)2(H2O)]2[Cu2(µ-Hdppa)2(Hdppa)2] (2), were hydrothermally synthesized from copper(II) chloride as a metal source, 5-(4-carboxyphenoxy)nicotinic acid (H2cpna) or 5-(3,4-dicarboxylphenyl)picolinic acid (H3dppa) as a principal building block, and 1,10-phenanthroline (phen) as a crystallization mediator. Compounds 1 and 2 were isolated as air-stable microcrystalline solids and fully characterized by elemental and thermogravimetric analyses, IR spectroscopy, powder and single-crystal X-ray diffraction. In the solid state, the structure of 1 discloses the linear interdigitated 1D coordination polymer chains with the 2C1 topology. The crystal structure of an ionic derivative 2 shows that the mono- and dicopper(II) units are extended into the intricate 1D hydrogen-bonded chains with the SP 1-periodic net (4,4)(0,2) topology. Thermal stability and catalytic properties of 1 and 2 were also investigated. In fact, both Cu derivatives act as efficient homogeneous catalysts (catalyst precursors) for the mild oxidation of cycloalkanes by hydrogen peroxide to give the corresponding alcohols and ketones; the substrate scope and the effects of type and amount of acid promoter as well as bond-, regio-, and stereo-selectivity features were investigated.



CrystEngComm ◽  
2011 ◽  
Vol 13 (21) ◽  
pp. 6345 ◽  
Author(s):  
Song-Liang Cai ◽  
Sheng-Run Zheng ◽  
Jing-Bo Tan ◽  
Mei Pan ◽  
Jun Fan ◽  
...  


2014 ◽  
Vol 70 (a1) ◽  
pp. C1705-C1705 ◽  
Author(s):  
Eunji Lee ◽  
Shim Sung Lee ◽  
Ki-Min Park

Three regioisomers (o-L,m-L, andp-L) of bis(cyanobenzyl)sulfide were employed to examine the effect of ligand isomers on the networking assembly. In the reaction ofm-Lwith silver(I) nitrate, supramolecular isomers1and2of stoichiometry [Ag2(m-L)(NO3)2]n, each comprising a 2D polymeric network were obtained on varying the mole-ratio of the reactant (see the below scheme). Notably, the overall structural motifs of1and2are mainly due to the conformational differences of the tridentatem-L: `S-shaped' in isomer1and `V-shaped' in isomer2. Under identical reaction conditions, the ligand isomerso-Landp-Lyield a loop-chain type 1D coordination polymer [Ag(o-L)NO3]n(3) and a multichannel 3D framework structure [Ag2(p-L)(NO3)2]n(4), respectively. The formation of these products shows no mole-ratio dependency.1Among the ligand isomer,p-Lshowed the anion-dependent complexes5-7with different topologies in the reactions of silver(I) salts (X = ClO4-, PF6-, or CF3CO2-). AgClO4afforded a double-stranded 1D polymer of type [Ag(p-L)(ClO4)]n(5). Meanwhile, treatment of AgPF6and AgCF3CO2afforded a 2-fold interpenetrated 3D coordination polymer {[Ag3(p-L)4](PF6)3·4CH2Cl2}n(6) and a multichannel 3D network [Ag2(p-L)(CF3CO3)2]n(7), respectively.



2003 ◽  
pp. 1630-1631 ◽  
Author(s):  
Yun-Hui Li ◽  
Cheng-Yong Su ◽  
Andrea M. Goforth ◽  
Ken D. Shimizu ◽  
Kenneth D. Gray ◽  
...  


CrystEngComm ◽  
2018 ◽  
Vol 20 (24) ◽  
pp. 3297-3301 ◽  
Author(s):  
Li Sun ◽  
Rui-Yun Guo ◽  
Xiao-Dong Yang ◽  
Shuai Ma ◽  
Jie Zhang

A rare crystal-to-crystal transformation occurs between 1D coordination polymer chains and 3D mechanically interlocked structures via reversible opening and closing of the homogeneous chains without any change in the coordination mode and composition.



Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3358
Author(s):  
Sadaf Rauf ◽  
Agata Trzesowska-Kruszynska ◽  
Tomasz Sierański ◽  
Marcin Świątkowski

Three new copper coordination compounds derived from 2,2-bis(hydroxymethyl)propionic acid (dmpa) and hexamethylenetetramine (hmta) were obtained and their crystal structures were determined. The stoichiometry of the reagents applied in the syntheses reflects the metal to ligand molar ratio in the formed solid products. Due to the multiple coordination modes of the used ligands, wide structural diversity was achieved among synthesized compounds, i.e., mononuclear [Cu(dmp)2(hmta)2(H2O)] (1), dinuclear [Cu2(dmp)4(hmta)2] (2), and 1D coordination polymer [Cu2(dmp)4(hmta)]n (3). Their supramolecular structures are governed by O—H•••O and O—H•••N hydrogen bonds. The compounds were characterized in terms of absorption (UV-Vis and IR) and thermal properties. The relationships between structural features and properties were discussed in detail. Owing to discrepancies in the coordination mode of a dmp ligand, bidentate chelating in 1, and bidentate bridging in 2 and 3, there is a noticeable change in the position of the bands corresponding to the stretching vibrations of the carboxylate group in the IR spectra. The differences in the structures of the compounds are also reflected in the nature and position of the UV-Vis absorption maxima, which are located at lower wavelengths for 1.



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