X-ray powder diffraction data for 2,4-dichloro-5-nitrobenzoic acid

Quevedo, Armando Paneque; Armas, Héctor Novoa de; Marill, Lisbet Xuárez

doi:10.1017/s0885715600009702

Cited by 3 publications

(3 citation statements)

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“…Among the many compounds that have been characterized by powder XRD methods are solid aromatic hydrocarbons. 7,8 Recently, X-ray powder diffraction has also been found useful in elucidating the structures and in the identification of natural products, 9 analgesics, 10,11 amines 12,13 and antibiotics. [14][15][16] Also, it has become one of the most powerful tools in forensic analysis.…”

Section: Introductionmentioning

confidence: 99%

X-Ray Powder Diffraction Patterns for Certain β-Lactam, Tetracycline and Macrolide Antibiotic Drugs

Thangadurai¹,

Abraham

Srivastava

et al. 2005

ANAL. SCI.

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X-ray powder diffraction (XRD) data for eight β-lactam viz., ampicillin sodium, ampicillin trihydrate, penicillin G procaine, benzathine penicillin, benzyl penicillin sodium, cefalexin, cefotaxime sodium and ceftriaxone sodium; three tetracyclines viz., doxycycline hydrochloride, oxytetracycline dihydrate and tetracycline hydrochloride; and two macrolide viz., azithromycin and erythromycin estolate antibiotic drugs were obtained using a powder diffractometer. The drugs were scanned from Bragg angles (2θ) of 10˚ to 70˚. The obtained data were tabulated in terms of the lattice spacing (Å) and relative line intensities (I/II). This new information may be useful for identifying these drugs from confiscated materials, which has been frequently encountered in forensic laboratories.

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Section: Introductionmentioning

confidence: 99%

X-Ray Powder Diffraction Patterns for Certain β-Lactam, Tetracycline and Macrolide Antibiotic Drugs

Thangadurai¹,

Abraham

Srivastava

et al. 2005

ANAL. SCI.

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“…The Rietveld refinement process using the RIET-ICA code [15] was employed in the data refinement. In the fitting process, the space group P 63mc (wurtzite structure) was selected as the start model.…”

Section: Resultsmentioning

confidence: 99%

The electrical transport behavior of Zn-treated Zn_1−xMn_xO bulks

et al. 2009

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Zn 1−x MnxO bulks have been prepared by the solid state reaction method. Zn vapor treatment has been carried out to adjust the carrier concentration. For the Zn treated Zn 1−x MnxO bulks, analysis of the temperature dependence of resistance and the field dependence of magnetoresistance demonstrates that the bound magnetic polarons (BMPs) play an important role in the electrical transport behavior. The hopping of BMPs dominates the electrical conduction behavior when temperature is below 170 K. At low temperature, paramagnetic Zn 1−x MnxO bulks show a large magnetoresistance effect, which indicates that the large magnetoresistance effect in transition-metal doped ZnO dilute magnetic semiconductors is independent of their magnetic states.

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“…The X-ray diffraction profile was collected with an angular range of 2θ from 20° to 70° in steps of 0.02° with a counting time of 1 second. The structure refinement was performed by the Rietveld method [6,7] using RIETICA program [8]. In the refining process, wurtzite ZnO structure P6 3 mc was selected as a starting model structure.…”

Section: Methodsmentioning

confidence: 99%

Structural and Optical Properties of Zn<sub>0.8</sub>Co<sub>0.2</sub>O Ceramics

Sujinnapram

Onreabroy

Nantawisarakul

2008

AMR

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The Zn0.8Co0.2O ceramics were synthesized by the solid state reaction method with the mixture of ZnO and CoO powders. The mixed powders were sintered at 1200 °C and 1300 °C for 4 hours. It was found that the X-ray diffraction patterns of Zn0.8Co0.2O ceramics were similar to that of the pure ZnO one. The crystal structure of Zn0.8Co0.2O ceramics were then determined using the Rietveld full-profile analysis method to indicate a single phase with a wurtzite-like structure. Their microstructures were examined using the scanning electron microscopy. The results showed that their grain sizes were increased with increasing both the sintering temperatures and the doping effect. Moreover, the optical absorption spectra using UV-Vis spectrometer showed that there were several extra absorption bands appearing in the Zn0.8Co0.2O samples. This confirms that Co2+ is substituted Zn2+ in the wurtzite structure.

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X-ray powder diffraction data for 2,4-dichloro-5-nitrobenzoic acid

Abstract: 2,4-dichloro-5-nitrobenzoic acid (C7H3NO4Cl2) has been investigated by means of X-ray powder diffraction. The title compound is monoclinic with unit-cell parameters a=13.761 (2), b=8.435 (1), c=7.684 (1) Å, β=99.85 (1)°, V=878.5 (1) Å3, Z=4, Dx=1.772 g/cm3, space group P21/a (14).

Cited by 3 publications

References 3 publications

X-Ray Powder Diffraction Patterns for Certain β-Lactam, Tetracycline and Macrolide Antibiotic Drugs

X-Ray Powder Diffraction Patterns for Certain β-Lactam, Tetracycline and Macrolide Antibiotic Drugs

The electrical transport behavior of Zn-treated Zn_1−xMn_xO bulks

Structural and Optical Properties of Zn<sub>0.8</sub>Co<sub>0.2</sub>O Ceramics

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X-ray powder diffraction data for 2,4-dichloro-5-nitrobenzoic acid

Abstract: 2,4-dichloro-5-nitrobenzoic acid (C7H3NO4Cl2) has been investigated by means of X-ray powder diffraction. The title compound is monoclinic with unit-cell parameters a=13.761 (2), b=8.435 (1), c=7.684 (1) Å, β=99.85 (1)°, V=878.5 (1) Å3, Z=4, Dx=1.772 g/cm3, space group P21/a (14).

Cited by 3 publications

References 3 publications

X-Ray Powder Diffraction Patterns for Certain β-Lactam, Tetracycline and Macrolide Antibiotic Drugs

X-Ray Powder Diffraction Patterns for Certain β-Lactam, Tetracycline and Macrolide Antibiotic Drugs

The electrical transport behavior of Zn-treated Zn1−xMnxO bulks

Structural and Optical Properties of Zn<sub>0.8</sub>Co<sub>0.2</sub>O Ceramics

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The electrical transport behavior of Zn-treated Zn_1−xMn_xO bulks