Investigating the effect of anion substitutions on the structure of silver-based coordination polymers

Beheshti, Azizolla; Zafarian, Hamid Reza; Abrahams, Carmel T.; Brunò, Giuseppe; Rudbari, Hadi Amiri

doi:10.1016/j.ica.2015.09.006

Cited by 2 publications

(2 citation statements)

References 45 publications

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“…Silver coordination polymers are receiving much attention because of their antimicrobial [6][7][8][9], anti-tumor [10] and luminescent properties [11]. Bitopic bis-and tris(pyrazol-1-yl)methane ligands have been used for the preparation of coordination polymers of various topologies [12][13][14][15][16][17][18][19][20]. However, the simplest possible bitopic ligand, -1,1,2,2-tetra(pyrazol-1-yl) ethane (Pz 4 ), has not been examined so far as a building block for silver coordination polymers.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Crystal Structure and Thermal Stability of 1D Linear Silver(I) Coordination Polymers with 1,1,2,2-Tetra(pyrazol-1-yl)ethane

et al. 2016

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Abstract:Two new linear silver(I) nitrate coordination polymers with bitopic ligand 1,1,2,2-tetra(pyrazol-1-yl)ethane were synthesized. Synthesized compounds were characterized by IR spectroscopy, elemental analysis, powder X-ray diffraction and thermal analysis. Silver coordination polymers demonstrated a yellow emission near 500 nm upon excitation at 360 nm. Crystal structures of coordination polymers were determined and structural peculiarities are discussed. In both of the structures, silver ions are connected via bridging ligand molecules to form polymeric chains with a five-atomic environment. The coordination environment of the central atom corresponds to a distorted trigonal bipyramid with two N atoms of different ligands in apical positions. The Ag-N bond distances vary in a wide range of 2.31-2.62 Å, giving strongly distorted metallacycles. Thermolysis of coordination polymers in reductive atmosphere (H 2 /He) leads to the formation of silver nanoparticles with a narrow size distribution.

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Section: Introductionmentioning

confidence: 99%

Synthesis, Crystal Structure and Thermal Stability of 1D Linear Silver(I) Coordination Polymers with 1,1,2,2-Tetra(pyrazol-1-yl)ethane

et al. 2016

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“…Bitopic bis-and tris(pyrazol-1yl)methanes have served as ligands for the preparation of various silver coordination polymers of different topologies [20][21][22][23][24][25][26][27][28]. In our recent work, we synthesized silver coordination polymers containing the bitopic ligand 1,1,2,2-tetra(pyrazol-1-yl)ethane (Pz 4 ) and showed that silver-based compounds are more likely to form polymeric rather than discrete structures [29].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Crystal Structure, Thermal Analysis, and DFT Calculations of Molecular Copper(II) Chloride Complexes with Bitopic Ligand 1,1,2,2-tetrakis(pyrazol-1-yl)ethane

et al. 2019

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Two binuclear coordination compounds of Cu(II) chloride with the bitopic ligand 1,1,2,2-tetrakis(pyrazol-1-yl)ethane (Pz4) of the composition [Cu2(µ2Pz4)(DMSO)2Cl4]·4H2O and [Cu2(µ2Pz4)(DMSO)2Cl4]∙2DMSO were prepared and characterized by elemental analysis, IR spectroscopy, thermogravimetric analysis, single-crystal X-ray diffraction, and powder diffraction analysis. It was shown that in contrast to silver(I) and copper(II) nitrates, copper(II) chloride forms discrete complexes instead of coordination polymers. The supramolecular structure of the complex [Cu2(µ2Pz4)(DMSO)2Cl4]·4H2O with lattice water molecules is formed by OH···Cl and OH···O hydrogen bonds. Density functional theory (DFT) calculations of vibrational frequencies of the ligand and its copper(II) complex allowed for assigning IR bands to specific vibrations.

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Investigating the effect of anion substitutions on the structure of silver-based coordination polymers

Cited by 2 publications

References 45 publications

Synthesis, Crystal Structure and Thermal Stability of 1D Linear Silver(I) Coordination Polymers with 1,1,2,2-Tetra(pyrazol-1-yl)ethane

Synthesis, Crystal Structure and Thermal Stability of 1D Linear Silver(I) Coordination Polymers with 1,1,2,2-Tetra(pyrazol-1-yl)ethane

Synthesis, Crystal Structure, Thermal Analysis, and DFT Calculations of Molecular Copper(II) Chloride Complexes with Bitopic Ligand 1,1,2,2-tetrakis(pyrazol-1-yl)ethane

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