Crystal Structure and EPR Investigation of Pyrazinamide Containing Copper (II) 2-Nitrobenzoate Single Crystal

Çelik, Yunus; Bozkurt, Esat; Karabulut, Bünyamin; Dege, Necmi

doi:10.12693/aphyspola.130.163

Cited by 4 publications

(2 citation statements)

References 17 publications

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“…Cu-Zn alloys have attracted attention due to their corrosion resistance and decorative applications [1][2][3][4][5]. CuZn electrodepositions were produced by using cyanide and non-cyanide baths, namely from electrolytic solutions based on complexing agents such as gluconate, citrate, EDTA, tartrate, sorbitol, glucoheptonate, pyrophosphate or mannitol [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Pulse Electrodeposition of Copper-Zinc Coatings from an Alkaline Bath

2017

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A copper-zinc bath containing EDTA was used for deposition of multi-functional copper-zinc coatings. Copper substrates were used for pulse electrodeposition of copper-zinc coating. Microhardness and wear resistance of copper-zinc coatings has been studied. The films were characterized by scanning electron microscopy and X-ray diffraction. EDS and EDS-dot mapping were also performed to analyse the amount and the distribution of Cu-Zn atoms.

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Section: Introductionmentioning

confidence: 99%

Pulse Electrodeposition of Copper-Zinc Coatings from an Alkaline Bath

2017

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“…Therefore, it is important to identify radical structures produced by irradiation. EPR is a powerful spectroscopic method for detecting radicals in the materials [7][8][9][10][11][12][13][14][15][16][17][18]. In this study, Calix [4]arene, labeled calix [4]arene (1), and 25,27-di(4-nitrobenzyl)-26,28-dihydroxycalix [4]arene, labeled calix [4]arene(2), were exposed to gamma rays and then radical structures of these calix [4]arenes were evaluated by EPR method.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Influences of Gamma Rays on Calix[4]Arene and 25,27-di(4-Nitrobenzyl)-26,28-Dihydroxycalix[4]Arene: EPR Study

et al. 2017

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In the present study, calix [4]arene and its derivate 25,27-di(4-nitrobenzyl)-26,28-dihydroxycalix[4]arene were irradiated for 72 hours by 60 Co gamma rays at dose rate of 0.720 kGy/h. These irradiated samples were analyzed by EPR method and it was found that one type of radical was produced in calix[4]arene, and two type of radicals were produced in 25,27-di(4-nitrobenzyl)-26,28-dihydroxycalix[4]arene. The measurements were performed in the temperature range of 273-400 K using x-band EPR spectrometer. It was observed that the spectra, obtained from two samples, have very weak temperature dependence. Hyperfine and g parameters were calculated for two samples.

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Structural Analysis of Polymeric Copper(II)–Pyrazinamide Complexes Prepared from Two Different Copper(II) Salts

Khunur

Prananto

2019

IOP Conf. Ser.: Mater. Sci. Eng.

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In crystal engineering, the presence of different types of anion may alter the structure of transition metal complexes. Thus, the anions may also govern the properties of the metal complexes. Hereby we reported a structural analysis of polymeric copper(II)-pyrazinamide (pza) complexes prepared from copper(II) sulphate and copper(II) chloride. The complexes were crystallised using a bench-top technique with copper(II):pza molar ratio of 1:2 in a layered H2O-CH3OH solvent at room temperature. Single crystal XRD, ATR-IR and melting point apparatus were used to analyse the structure and characterise the complexes. Single crystal XRD analyses reveals that both complexes, [Cu( µ-pza)(SO4)(H2O)2]n (A) and [Cu(pza)2( µ-Cl)2]n (B) forms a 1D polymeric structure with different metal-ligand connectivity around the octahedral copper centre. The copper centres are also linked by different ligand, namely pyrazinamide in A and chloride in B. Thus, the Cu…Cu distances in both complexes are different, 6.719 Å in A and 3.658 Å in B. Unlike in A, the crystal structure of B has two unique copper centres. In addition, crystal structures of A and B were also compared to closely related copper(II)-pza complexes from published literature. As also observed in many metal complexes, crystal structures of copper(II)-pza complex were affected by the anion of the metal salts used in the reaction, in which the anion also involves in the crystal structures.

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Crystal Structure and EPR Investigation of Pyrazinamide Containing Copper (II) 2-Nitrobenzoate Single Crystal

Cited by 4 publications

References 17 publications

Pulse Electrodeposition of Copper-Zinc Coatings from an Alkaline Bath

Pulse Electrodeposition of Copper-Zinc Coatings from an Alkaline Bath

Comparative Study of Influences of Gamma Rays on Calix[4]Arene and 25,27-di(4-Nitrobenzyl)-26,28-Dihydroxycalix[4]Arene: EPR Study

Structural Analysis of Polymeric Copper(II)–Pyrazinamide Complexes Prepared from Two Different Copper(II) Salts

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