• Bulletin of the Korean Chemical Society
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• v.23 no.4
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• pp.619-622
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• 2002

• Journal of the Korean Chemical Society
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• v.62 no.5
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• pp.372-376
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• 2018

A 1D-coordination polymer of $1D-\{Cu({\mu}-picolinato)_2\}$ $\{Hakimi,\;2012\;\sharp73\}_n$ (1), was prepared by the reactions between 2-(2-(pyridin-2-yl)oxazolidin-3-yl)ethanol (AEPC) ligand and $CuCl_2$ or $CuBr_2$. The product was characterized by elemental analysis, UV-Vis, FT-IR spectroscopy and single-crystal X-ray diffraction. The X-ray analysis results revealed that the AEPC ligand, after reactions with the copper(II) chloride or bromide, gives the same product - $1D-\{Cu({\mu}-picolinato)_2\}_n$ (1). The coordination modes for various picolinate-based ligands were extracted from the Cambridge Structural Database (CSD). In the crystal structure of 1, the copper atom has a $CuN_2O_4$ environment and octahedral geometry, which is distorted by elongation of the axial bond lengths due to the Jahn-Teller effect.

• Bulletin of the Korean Chemical Society
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• v.34 no.12
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• pp.3743-3748
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• 2013

A tetradentate ligand of 2-phenyl-4,6-di(pyridin-2-yl)pyrimidine (L) has been synthesized and its complexes with $ZnI_2$ and CuI have been obtained by hydrothermal method. single crystal X-ray diffraction analysis indicates that ligand L coordinates with Zn(II) ions to form a simple four-coordinate di-nuclear complex, while the complexation of L with Cu(I) constructs a one-dimensional chain polymer. The existence of $I^-$ ion hampers the L to assemble grid-type complexes with Zn(II) and Cu(I). Fluorescence spectra show that the L emits blue fluorescence while its Cu(I) polymer decrease the fluorescence intensity and Zn(II) complex quenches the fluorescence.

• Bulletin of the Korean Chemical Society
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• v.30 no.5
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• pp.1113-1117
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• 2009

The one-dimensional coordination polymers, $[Cu^{II}(L)(NO_3)_2]_n$ (1) and {$[Cu^{II}(L)(NO_3)]{\cdot}2H_2O}_{2n} (2), were synthesized from $Cu(NO_3)_2{\cdot}3H_2O$ and 2-[(pyridin-3-ylmethyl)amino]ethanol (L, PMAE) in methanol by controlling the molar ratio of copper(II) salt. Copper(II) ion in 1 has one pyridine group of PMAE whose an aminoethanol group coordinates adjacent copper(II) ion. As the pyridine group is bonded to neighboring copper(II) ion, 1 becomes a one-dimensional chain. Contrary to 1, the structure of 2 shows that the oxygen atom of ethoxide group is bridged between two copper(II) ions, which forms a dinuclear complex. Additionally, the pyridine group of PMAE included one dinuclear unit is coordinated to the other dimeric one each other, which leads to a one-dimensional polymer. Due to the structural differences, 1 exhibits weak antiferromagnetic interaction, while 2 shows strong antiferromagnetic interaction. Due to direct spin exchange via oxygen of PMAE 2 has a much strong spin coupling than 1.

• Bulletin of the Korean Chemical Society
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• v.29 no.3
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• pp.562-566
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• 2008

Reaction of AgNO3 with triethanolaminetriisonicotinate (L) produces 1 D coordination polymer of [Ag3(L)2](NO3)3 and the same treatment of Cu(NO3)2 with L gives 1D coordination polymer of [Cu(L)2](NO3)2. The nonrigid triethanolaminetriisonicotinate acts as a m 3-bridged tridentate for [Ag3(L)2](NO3)3 and a m 2-bridged bidentate for [Cu(L)2](NO3)2 to produce unusual motifs. The NO3- anions can be smoothly exchanged by PF6- anions in an aqueous suspension without destruction of the skeletal structure.

• Journal of the Korean Chemical Society
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• v.13 no.4
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• pp.309-312
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• 1969

A series of metal ion-2, 5-diamine 1, 4-dihydroxybenzene polymers containing copper(II), nickel(II) or cobalt (II) have been prepared. The structure was postulated on the basis of elementary analysis of polymers. It was found that copper polymer is most likely the coordination polymers by X-ray powder pattern studies. The thermal stability of the polymers was also studied by a simple method, utilizing a thermogravimetric balance. The order of thermal stabilities is Cu(II) > Ni(II) > Co(II). The polymers start to decompose at a relatively low temperature.

• Korean Journal of Crystallography
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• v.18 no.1_2
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• pp.16-20
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• 2007

Under hydrothermal conditions, a 2-dimensional copper(I) coordination polymer [$Cu_2Cl_2$(4,4'-dipyen)] (1) was prepared from [$Cu(OAc)_2]{\cdot}H_2O$, 4,4'-dipyen, and KCl. In polymer 1, copper atoms are linked by the 4,4'-dipyen ligands approximately along the b-axis and are also linked by the chloro ligands approximately along the a-axis to form a 2-D layer, a network of rectangles.

• Bulletin of the Korean Chemical Society
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• v.27 no.11
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• pp.1915-1918
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• 2006

• Bulletin of the Korean Chemical Society
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• v.33 no.1
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• pp.95-99
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• 2012

Two novel copper(II) complexes, [Cu(dmamhp)$(H_2O)_2(SO_4)]_n$ (1) and [Cu(dmamhp)$(NO_3)_2(H_2O)]{\cdot}H_2O$ (2) [dmamhp = 2-dimethylaminomethyl-3-hydroxypyridine] have been synthesized and structurally characterized by single crystal X-ray diffraction analysis. Compound 1 displays a double one-dimensional chains structure, in which each chain is constituted with the distorted octahedral copper(II) complex bridged through bidentate sulfate ligands resulting in a coordination polymer. The bifurcated hydrogen bonds and $\pi-\pi$ interactions play important roles in the formation of the double chains structure. On the other hand, compound 2 adopts a distorted square pyramidal geometry around copper(II) ion and exists as a discrete monomer. There are intermolecular bifurcated hydrogen bonds and $\pi-\pi$ stacking interactions between the monomeric units. The magnetic properties revealed that the paramagnetic behaviors are dominantly manifested and there are no intermolecular magnetic interactions in both compound 1 and 2.

• Bulletin of the Korean Chemical Society
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• v.33 no.7
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• pp.2381-2384
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• 2012