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Journal articles on the topic 'X ray unit'

Author: Grafiati

Published: 4 June 2021

Last updated: 12 February 2022

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1

Chandelia, Sudha. "Decisions and Outcomes after Chest X-ray in Pediatric Intensive Care Unit." Indian Journal of Trauma and Emergency Pediatrics 10, no. 4 (2018): Sudha—Chandelia. http://dx.doi.org/10.21088/ijtep.2348.9987.10418.2.

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2

Pajot, F., D. Barret, T. Lam-Trong, J. W. den Herder, L. Piro, M. Cappi, J. Huovelin, et al. "The Athena X-ray Integral Field Unit (X-IFU)." Journal of Low Temperature Physics 193, no. 5-6 (April 9, 2018): 901–7. http://dx.doi.org/10.1007/s10909-018-1904-5.

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3

Гунда, Б. М. "Multifunctional X-ray and thermostimulant luminescence unit." Scientific Herald of Uzhhorod University.Series Physics 5 (December 31, 1999): 198–212. http://dx.doi.org/10.24144/2415-8038.1999.5.198-212.

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4

Needham, F., C. E. Crowder, J. W. Reid, T. G. Fawcett, and J. Faber. "X-ray powder diffraction analysis of imipenem monohydrate." Powder Diffraction 27, no. 1 (March 2012): 20–24. http://dx.doi.org/10.1017/s0885715612000048.

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An experimental X-ray powder diffraction pattern was produced and analyzed for imipenem monohydrate, an antimicrobial pharmaceutical agent. Although there are no experimental powder patterns in the ICDD PDF-4/Organics Database, there is one powder pattern calculated with single-crystal X-ray diffraction data from the Cambridge Structural Database. Here, we report the refined experimental powder diffraction data for imipenem monohydrate. These data for imipenem monohydrate are consistent with an orthorhombic crystal system having reduced unit-cell parameters of a = 8.2534(3) Å, b = 11.1293(4) Å, and c = 15.4609(6) Å. The resulting unit-cell volume, 1420.15(15) Å3, indicates four formula units per unit cell. Observed peaks are consistent with the P212121 space group.

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5

Monger, Gerald, and Peter Varlashkin. "X-ray powder diffraction analysis of abacavir hemisulfate." Powder Diffraction 20, no. 3 (September 2005): 241–45. http://dx.doi.org/10.1154/1.1948390.

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The room temperature powder pattern of abacavir hemisulfate (anti-HIV reverse transcriptase compound) was indexed using 2θ values obtained from a powder pattern spiked with an internal standard. The resulting unit cell values for the monoclinic I2 cell [nonstandard setting of C2 (No. 5)] are a=13.278(1) Å, b=8.437(1) Å, c=14.259(2) Å, β=93.87(1)°. There are two formula units [(C14H16N6O)2.H2SO4] per unit cell and Dx=1.390 g∕cm3.

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6

KOMBA, TOSHINORI, and EIJI MOGI. "DEVELOPMENT OF FILMCHANGER FOR MOBILE X-RAY UNIT." Japanese Journal of Radiological Technology 42, no. 5 (1986): 620–27. http://dx.doi.org/10.6009/jjrt.kj00001358070.

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7

Chapman, Henry N., and Rod Balhorn. "Coherent soft x-ray single unit-cell diffraction." Proceedings, annual meeting, Electron Microscopy Society of America 51 (August 1, 1993): 646–47. http://dx.doi.org/10.1017/s0424820100149064.

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Following the basic ideas of x-ray structure analysis of single unit-cell specimens by Sayre it should be possible to determine the structure of weakly-scattering non-crystalline material from the radiation scattered from it, at a maximum resolution equal to half the wavelength of the radiation. Therefore, in principle, it should be possible to determine structures to 1 nm resolution by soft x-ray diffraction at 2 nm wavelength. An imaging method based solely on diffraction should be an extremely powerful x-ray microscopy tool.In order to determine the structure of the diffracting object however, the incident beam must be completely temporally and spatially coherent and the complex wave-field must be sampled across some surface at spatial frequency intervals of 1/(2 * Δ), where Δ is the resolution. Thus, a three-dimensional data set (a two-dimensional complex field) must be recorded to obtain the three-dimensional structure of the scatterer. In most cases, an area detector is used to determine the intensity of the wave-field, losing the phase information.

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8

SAKAKIBARA, TOSHIFUMI. "X-RAY MAMMOGRAPHY UNIT : PERFORMANCE AND QUALITY CONTROL." Japanese Journal of Radiological Technology 51, no. 2 (1995): 172–79. http://dx.doi.org/10.6009/jjrt.kj00001353402.

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9

Buckland-Wright, J. C. "A new high-definition microfocal X-ray unit." British Journal of Radiology 62, no. 735 (March 1989): 201–8. http://dx.doi.org/10.1259/0007-1285-62-735-201.

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10

Murali, Ramachandran, and Roger M. Burnett. "X-ray crystallography of very large unit cells." Current Opinion in Structural Biology 1, no. 6 (December 1991): 997–1001. http://dx.doi.org/10.1016/0959-440x(91)90097-d.

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11

Si, Ping-Zhan, Jung Tae Lim, Jihoon Park, and Chul-Jin Choi. "X-ray powder diffraction data for Mn4C." Powder Diffraction 34, no. 2 (April 11, 2019): 196–97. http://dx.doi.org/10.1017/s0885715619000265.

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We report on the X-ray diffraction data and unit-cell parameters of Mn4C, which has a cubic perovskite-type structure with a = 3.8726 Å and unit-cell volume V = 58.1 Å3. The measured lines were indexed and are consistent with the space group $ Pm { \bar {\it 3}} m$ (No. 221).

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12

Nong, Liangqin, Lingmin Zeng, and Jianmin Hao. "X-ray powder diffraction data for compound DyNiSn." Powder Diffraction 12, no. 3 (September 1997): 134–35. http://dx.doi.org/10.1017/s088571560000957x.

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The compound DyNiSn has been studied by X-ray powder diffraction. The X-ray diffraction patterns for this compound at room temperature are reported. DyNiSn is orthorhombic with lattice parameters a=7.1018(1) Å, b=7.6599(2) Å, c=4.4461(2) Å, space group Pna21 and 4 formula units of DyNiSn in unit cell. The Smith and Snyder Figure-of-Merit F30 for this powder pattern is 26.7(0.0178,63).

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13

Xiao, Dan, Li Li Zhang, Xiao Qing Wu, Jin Yan, Wei Luo, and Hui Li. "X-ray powder diffraction data for peiminine." Powder Diffraction 28, no. 4 (July 29, 2013): 312–14. http://dx.doi.org/10.1017/s0885715613000535.

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X-ray powder diffraction data, unit-cell parameters and space group for peiminine, C27H43NO3, are reported (a = 30.2026 Å, b = 5.8468 Å, c = 14.4344 Å, β = 96.9456°, unit-cell volume V = 2530.23 Å3, Z = 2 and space group P21). All measured lines were indexed and are consistent with the P21 space group. No detectable impurity was observed.

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14

Zhang, Li Li, Dan Xiao, Xia Lin, Wei Luo, Si Li, and Hui Li. "X-ray powder diffraction data for schisanhenol." Powder Diffraction 29, no. 1 (October 10, 2013): 48–50. http://dx.doi.org/10.1017/s0885715613000778.

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Experimental X-ray powder diffraction data, unit-cell parameters and space group for schisanhenol, C23H30O6, are reported [a = 14.6157 Å, b = 12.8801 Å, c = 11.4907 Å, unit-cell volume V = 2163.14 Å3, Z = 4, and space group P212121]. All of the measured lines were indexed and are consistent with the P212121 space group. No detectable impurities were observed.

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15

Zhang, Li Li, Qing Qing Pan, Dan Xiao, Xiao Qing Wu, Qing Wang, and Hui Li. "X-ray powder diffraction data for deoxyschisandrin." Powder Diffraction 28, no. 3 (April 16, 2013): 231–33. http://dx.doi.org/10.1017/s0885715613000067.

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X-ray powder diffraction data, unit-cell parameters, and space group for deoxyschisandrin, C24H32O6, are reported [a = 13.083(3) Å, b = 19.563(9) Å, c = 8.805(6) Å, β = 90.472(0)°, unit-cell volume V = 2253.82 Å3, Z = 4, and space group P21]. All measured lines were indexed and are consistent with the P21 space group. No detectable impurity was observed.

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16

Tang, Pei Xiao, Xiao Qing Wu, Qing Qing Pan, Li Li Zhang, Qiang Cheng, and Hui Li. "X-ray powder diffraction data for norandrostenedione." Powder Diffraction 28, no. 4 (May 29, 2013): 302–4. http://dx.doi.org/10.1017/s088571561300047x.

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X-ray powder diffraction data, unit-cell parameters, and space group for norandrostenedione, C18H24O2, are reported [a = 26.3955(15) Å, b = 8.0476(4) Å, c = 7.3002(3) Å, α = β = γ = 90°, unit-cell volume V = 1550.71 Å3, Z = 4, and space group P212121]. All measured lines were indexed and are consistent with the P212121 space group. No detectable impurity was observed.

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17

Xu, Kai Lin, Bing Liang, Xiao Qing Wu, Li Li Zhang, Pei Xiao Tang, and Hui Li. "X-ray powder diffraction data for levetiracetam." Powder Diffraction 29, no. 1 (October 10, 2013): 51–52. http://dx.doi.org/10.1017/s0885715613000742.

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Experimental X-ray powder diffraction data, unit-cell parameters, and space group for levetiracetam, C8H14N2O2, are reported [a = 9.197(5) Å, b = 8.006(0) Å, c = 6.289(3) Å, β = 108.457(3)°, unit-cell volume V = 439.261 Å3, Z = 2, and space group P21]. All measured lines were indexed and are consistent with the P21 space group. No detectable impurity was observed.

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18

Tang, Pei Xiao, Xiao Qing Wu, Li Li Zhang, Qiang Cheng, and Hui Li. "X-ray powder diffraction data for norethindrone." Powder Diffraction 29, no. 1 (October 10, 2013): 46–47. http://dx.doi.org/10.1017/s0885715613000729.

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Experimental X-ray powder diffraction data, unit-cell parameters, and space group for norethindrone, C20H26O2, are reported [a = 20.7484(12) Å, b = 12.1678(9) Å, c = 6.5561(2) Å, α = β = γ = 90°, unit-cell volume V = 1655.17(16) Å3, Z = 4 and space group P212121]. All measured lines were indexed and are consistent with the P212121 space group. No detectable impurity was observed.

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19

Koster, Herman. "X-ray powder diffraction data for In3.85Zr2.80Sn0.35O12." Powder Diffraction 18, no. 1 (March 2003): 38–41. http://dx.doi.org/10.1154/1.1446862.

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X-ray powder diffraction data for In3.85Zr2.80Sn0.35O12 are reported. The powders were prepared using a wet-chemical precipitation method. The XRD data could be fitted with a rhombohedral unit cell in space group R3 (No. 148). The Rietveld refined unit cell parameters are a=0.951 49(2) nm and c=0.889 51(2)nm in a hexagonal setting with Z=3 and Dx=6.69(1)g/cm3.

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20

Needham, F., J. Faber, T. G. Fawcett, and D. H. Olson. "X-ray powder diffraction analysis of tegafur." Powder Diffraction 21, no. 3 (September 2006): 245–47. http://dx.doi.org/10.1154/1.2210952.

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An experimental X-ray powder diffraction pattern was produced and analyzed for alpha-polymorphic tegafur, also called Ftorafur (an antineoplastic agent). The indexed data matched the powder patterns in the ICDD PDF-4/Organics database calculated from the reported single-crystal X-ray diffraction data in the Cambridge Structural Database. Alpha tegafur has a triclinic crystal system, with reduced cell parameters of a=16.720(6) Å, b=9.021(5) Å, c=5.995(3) Å, α=93.66(4)°, β=93.15(8)°, γ=100.14(4)°. There are four formula units contained in one unit cell. The cell volume and space group were determined to be 886.27 Å3 and P-1, respectively.

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21

Kras'ko, V. G., and Yu M. Rapoport. "RAD-200K x-ray inspection unit for inspection of critical refractory parts." Refractories 33, no. 9-10 (September 1992): 434–39. http://dx.doi.org/10.1007/bf01283392.

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22

Butler, R. C. "The X-ray Astronomy Satellite SAX." International Astronomical Union Colloquium 115 (1990): 302–6. http://dx.doi.org/10.1017/s0252921100012501.

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AbstractThe SAX satellite is forseen for launch at the end of 1992 to study the X-ray emission from galactic and extra-galactic sources in the energy range 0.1-200 keV. The payload consists of four concentrator/spectrometer systems (3 units 1-10keV, 1 unit 0.1-10keV), a high pressure gas scintillation proportional counter (3-120keV), a phoswich scintillation counter (15-200keV), and two wide field cameras (2-30keV). Together these instruments will perform the following:- - Broad band spectroscopy (E/ΔE=12) in the energy range 0.1-10 keV with imaging resolution of 1 arcmin- Continuum and cyclotron line spectroscopy (E/ΔE=5-20) in the wide energy range 3-200 keV- Variability studies of bright source energy spectra on time scales from milliseconds to days and months- Systematic long term source variability studies in selected regions of the sky down to a source intensity of 1 mCrab.

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23

Zenin, A. Yu, and D. P. Sannikov. "Analytical unit for wave-dispersive X-ray fluorescence spectrometers." Analytics, no. 1 (2018): 52–56. http://dx.doi.org/10.22184/2227-572x.2018.38.1.52.56.

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24

Mah, P., and W. D. McDavid. "Portable Hand-held X-ray Unit: Effects of Motion." Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology 105, no. 4 (April 2008): e55-e56. http://dx.doi.org/10.1016/j.tripleo.2007.12.068.

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25

Birch, M. J., and R. W. Blowes. "A contact X-ray therapy unit for intracavitary irradiation." Physics in Medicine and Biology 35, no. 2 (February 1, 1990): 275–80. http://dx.doi.org/10.1088/0031-9155/35/2/008.

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26

Reid, John A., John C. F. MacDonald, Tom A. Dekker, and Bryan U. Kuppers. "Radiation exposures around a panoramic dental x-ray unit." Oral Surgery, Oral Medicine, Oral Pathology 75, no. 6 (June 1993): 780–82. http://dx.doi.org/10.1016/0030-4220(93)90440-f.

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27

Alkhimov, Yu V., V. D. Del, V. K. Kuleshov, V. N. Lanshakov, I. N. Mirzoyan, and V. B. Chelnokov. "Diagnostic x-ray unit employing a gas-discharge converter." Biomedical Engineering 24, no. 1 (1990): 29–30. http://dx.doi.org/10.1007/bf00557940.

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28

Fourcade, Richard O., and Jerome Guinard. "Calyceal puncture for nephrolithotomy using unidimensional x-ray unit." Urology 29, no. 1 (January 1987): 80–83. http://dx.doi.org/10.1016/0090-4295(87)90608-x.

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29

Rashmi and D. K. Suri. "X-ray powder diffraction study of CuInSeTe." Powder Diffraction 15, no. 1 (March 2000): 65–68. http://dx.doi.org/10.1017/s0885715600010861.

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CuInSeTe was synthesized by the melt and anneal technique. The compound crystallized in the chalcopyrite structure having space group I4¯2d with Z=4. Complete X-ray powder diffraction data were obtained and the unit cell parameters a and c, X-ray density and u parameter were calculated. These are a=0.5987(1) nm, c=1.1979(4) nm, Dx=5.96×103kg/m3, and u=0.2498. Atomic positions in the unit cell are proposed.© 2000 International Centre for Diffraction Data.

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30

Ibrahim, I. H. "X-Ray Diffraction of Some Biphenylcyclohexanes (BCH's)." Zeitschrift für Naturforschung A 42, no. 5 (May 1, 1987): 444–46. http://dx.doi.org/10.1515/zna-1987-0504.

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X-ray diffraction measurements have been made on BCH5Cl, BCH5Br, BCH5CN, BCH52 and binary mixture of BCH5CN and BCH52, in the nematic phase. BCH5C1 and BCH5Br are thought to have a weak molecular correlation along the texture axis with repeat unit along that axis of ~ 1.1 molecular lengths. Whereas for BCH5CN the repeat unit along the texture axis is about 1.4 molecular lengths implying a strong molecular association.The d-spacings of the binary mixtures of the strongly polar BCH5CN and the nonpolar BCH52, in the nematic phase, vary roughly linearly between the d-spacing of BCH5CN and that of BCH52.

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31

Takai, Hiroji, Masaki Uno, Hideki Shirakawa, and Takeshi Sawada. "Evaluation of the inverter type unit in the mobile X-ray unit(IME-12A)." Japanese Journal of Radiological Technology 54, no. 1 (1998): 177. http://dx.doi.org/10.6009/jjrt.kj00001351847.

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32

Halvarsson, M., V. Langer, and S. Vuorinen. "X-ray powder diffraction data for κ-Al2O3." Powder Diffraction 14, no. 1 (March 1999): 61–63. http://dx.doi.org/10.1017/s0885715600010332.

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X-ray powder diffraction data for κ-Al2O3 are reported. It was concluded that κ-Al2O3 belongs to the orthorhombic crystal system with space group Pna21. The lattice parameters were found to be a=4.8351(3) Å, b=8.3109(5) Å, c=8.9363(3) Å. There are 16 Al3+ and 24 O2− in the unit cell, and thus the number of chemical formulas in the unit cell, Z, is 8. The volume V of the unit cell is equal to 359.09(6) Å3 and the theoretical density Dx is 3.772 g/cm3. The Smith–Snyder (F20) and the de Wolff (M20) values for these data are 136.1 (0.0059, 25) and 98.4, respectively.

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33

Coates, Chloe S., Claire A. Murray, Hanna L. B. Boström, Emily M. Reynolds, and Andrew L. Goodwin. "Negative X-ray expansion in cadmium cyanide." Materials Horizons 8, no. 5 (2021): 1446–53. http://dx.doi.org/10.1039/d0mh01989e.

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34

Wu, Di, Shan Shan Li, Kai Lin Xu, Li Li Zhang, Xiao Qing Wu, and Hui Li. "X-ray powder diffraction data for loratadine (C22H23ClN202)." Powder Diffraction 29, no. 2 (March 3, 2014): 193–95. http://dx.doi.org/10.1017/s0885715614000104.

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X-ray powder diffraction data, unit-cell parameters, and space group for loratadine (C22H23ClN2O2) are reported [a = 28.302(18) Å, b = 4.996(3) Å, c = 29.154(19) Å, β = 109.158(2)°, unit-cell volume V = 3894.25 Å3, Z = 8, and space group C2/c]. All measured lines were indexed and are consistent with the C2/c space group. No detectable impurities were observed.

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35

Wu, Xiao Qing, Pei Xiao Tang, Shan Shan Li, Li Li Zhang, and Hui Li. "X-ray powder diffraction data for meloxicam, C14H13N3O4S2." Powder Diffraction 29, no. 2 (April 9, 2014): 196–98. http://dx.doi.org/10.1017/s0885715614000153.

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X-ray powder diffraction data, unit-cell parameters, and space group for meloxicam, C14H13N3O4S2, are reported [a = 6.997(2) Å, b = 8.113(2) Å, c = 13.604(4) Å, α = 85.774(2)°, β = 88.311(1)°, γ = 74.994(1)°, unit-cell volume V = 743.821 Å3, Z = 2, and space group P-1]. All measured lines were indexed, and no detectable impurity was observed.

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36

Wu, Di, Pei Xiao Tang, Shan Shan Li, Hao Zhong Luo, and Hui Li. "X-ray powder diffraction data for gemcitabine, C9H11F2N3O4." Powder Diffraction 30, no. 1 (February 20, 2015): 76–78. http://dx.doi.org/10.1017/s0885715614001055.

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X-ray powder diffraction data, unit-cell parameters and space group for gemcitabine, C9H11F2N3O4, are reported [a = 17.641(8) Å, b = 6.985(1) Å, c = 18.653(2) Å, α = β = γ = 90°, unit-cell volume V = 2298.61 Å3, Z = 8 and space group Pmna]. All measured lines were indexed and are consistent with the Pmna space group. No detectable impurities were observed.

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37

Li, YuanZhi, PeiXiao Tang, KaiLin Xu, ShanShan Li, LiuQi Guo, and Hui Li. "X-ray powder diffraction data for tectoridin, C22H22O11." Powder Diffraction 31, no. 1 (November 2, 2015): 52–54. http://dx.doi.org/10.1017/s0885715615000810.

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X-ray powder diffraction data, unit-cell parameters, and space group for tectoridin, C22H22O11, are reported [a = 13.577 (2) Å, b = 10.466 (8) Å, c = 9.454 (7) Å, α = 85.709 (4)°, β = 94.855 (3)°, γ = 101.485 (3)°, unit-cell volume V = 1309.50 Å3, Z = 2, ρ = 1.179 × 103 kg m−3, and space group P1]. No detectable impurity was observed.

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38

Yang, Hong Qin, Qing Wang, Pei Xiao Tang, Bin Tang, Ya Ping Li, and Hui Li. "X-ray powder diffraction data for thiamphenicol, C12H15Cl2NO5S." Powder Diffraction 31, no. 1 (February 17, 2016): 80–82. http://dx.doi.org/10.1017/s0885715615000834.

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X-ray powder diffraction data, unit-cell parameters, and space group for thiamphenicol, C12H15Cl2NO5S, are reported [a = 17.346(3), b = 15.341(0), c = 5.790 (2) Å, α = β = γ = 90°, unit-cell volume V = 1540.8(3) Å3, Z = 4, and space group P212121]. All measured lines were indexed and are consistent with the P212121 space group. No detectable impurities were observed.

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39

Pažout, R., J. Maixner, R. Mundil, and I. Prokopová. "X-ray powder diffraction data for trimethylene carbonate." Powder Diffraction 27, no. 3 (August 17, 2012): 208–10. http://dx.doi.org/10.1017/s0885715612000486.

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X-ray powder diffraction data, unit-cell parameters and space group for trimethylene carbonate, C4H6O3, are reported [a = 6.145(1) Å, b = 11.328(3) Å, c = 6.900(2) Å, β = 99.067(4)°, unit-cell volume V = 474.33 Å3, Z = 4 and space group P21/n]. All measured lines were indexed and are consistent with the P21/n space group. No detectable impurity was observed.

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40

Li, Shan Shan, Xiao Qing Wu, Qing Wang, Pei Xiao Tang, and Hui Li. "X-ray powder diffraction data for bisacodyl, C22H19NO4." Powder Diffraction 29, no. 3 (June 10, 2014): 295–97. http://dx.doi.org/10.1017/s0885715614000475.

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In this paper, X-ray powder diffraction data, unit-cell parameters, and space group for bisacodyl, C22H19NO4, are reported [a = 9.081(3) Å, b = 10.631(5) Å, c = 11.549(6) Å, α = 111.492(4)°, β = 108.082(3)°, γ = 101.501(3)°, unit-cell volume V = 922.368 Å3, Z = 2, and space group P-1]. All measured lines were indexed, and no detectable impurity was observed.

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41

Guo, Liu Qi, Kai Lin Xu, Xiao Li Ma, Shan Shan Li, and Hui Li. "X-ray powder diffraction data for niclosamide, C13H8N2O4Cl2." Powder Diffraction 30, no. 4 (August 13, 2015): 375–77. http://dx.doi.org/10.1017/s0885715615000615.

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Experimental X-ray powder diffraction data, unit-cell parameters, and space group for niclosamide, C13H8N2O4Cl2, are reported [a = 13.571(1) Å, b = 7.181(8) Å, c = 13.742(3) Å, β = 97.984(7)°, unit-cell volume V = 1326.40 Å3, Z = 4, and space group P21/c]. All measured lines were indexed and are consistent with the P21/c space group. No detectable impurity was observed.

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42

Huang, Yan Mei, Hong Qin Yang, Shou Jun Zheng, Pei Xiao Tang, and Hui Li. "X-ray powder diffraction data for letrozole (C17H11N5)." Powder Diffraction 30, no. 4 (September 2, 2015): 372–74. http://dx.doi.org/10.1017/s088571561500069x.

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X-ray powder diffraction data, unit-cell parameters, and space group for letrozole, C17H11N5, are reported [a = 7.034(0) Å, b = 16.177(5) Å, c = 13.411(3) Å, α = γ = 90°, β = 105.71(9)°, unit-cell volume V = 1469.0(3) Å3, Z = 4, and space-group P21/c]. All measured lines were indexed and are consistent with the P21/c space group. No detectable impurity was observed.

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Wang, Qing, Qiao Mei Sun, Shan Shan Li, Liu Qi Guo, and Hui Li. "X-ray powder diffraction data for drospirenone, C24H30O3." Powder Diffraction 31, no. 1 (November 3, 2015): 63–65. http://dx.doi.org/10.1017/s0885715615000822.

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X-ray powder diffraction data, unit-cell parameters, and space group for drospirenone, C24H30O3, are reported [a = 12.897(1) Å, b = 12.618(1) Å, c = 12.252(1) Å, α = β = γ = 90°, unit-cell volume V = 1994.13 Å3, Z = 4, ρcal = 1.229 g cm−3, and space group P212121]. All measured lines were indexed and are consistent with the P212121 space group. No detectable impurities were observed.

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44

Patel, Nilan V., Joseph T. Golab, James A. Kaduk, Amy M. Gindhart, and Thomas N. Blanton. "Powder X-ray diffraction of flucytosine, C4H4FN3O." Powder Diffraction 35, no. 1 (January 7, 2020): 67–68. http://dx.doi.org/10.1017/s0885715619000903.

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Flucytosine, CAS #2022-85-7, crystallizes in the tetragonal space group P41212 (#94) with a = 6.643768(27), c = 23.89009(10) Å, V = 1054.500(7) Å3, and Z = 8. In this work, the sample was obtained from the United States Pharmacopeial Convention (USP) Lot #R03100 and analyzed as-received. The room temperature (295 K) crystal structure was refined using synchrotron (λ = 0.412826 Å) powder diffraction data and optimized using the density functional theory (DFT). When looking down the a-axis, the crystal structure consists of multiple ribbon-like structures stacked into columns. The powder X-ray diffraction pattern of the compound has been submitted to ICDD® for inclusion in the Powder Diffraction File™ (PDF®). The agreement of the Rietveld-refined and DFT-optimized structures is good, with the largest difference in the external amine group with an overall root mean displacement of 0.056 Å. There is also evidence of unit cell expansion at higher temperatures, as the volume of the unit cell at 298 K was 1.6–1.9% greater than the two unit cells obtained at 150 K. A N–H⋯O hydrogen bond exists in the inter-ribbon region between the flucytosine molecules, resulting in a 3D hydrogen bond network.

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45

Wong-Ng, W., G. Liu, Y. G. Yan, and J. A. Kaduk. "Structure and X-ray reference diffraction patterns of (Ba6−xSrx)R2Co4O15 (x = 1, 2) (R = lanthanides)." Powder Diffraction 28, no. 3 (April 25, 2013): 212–21. http://dx.doi.org/10.1017/s0885715613000171.

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The structure and X-ray patterns of two series of barium lanthanide cobaltates, namely, Ba4Sr2R2Co4O15 (R = La, Nd, Sm, Eu, Gd, and Dy), and Ba5SrR2Co4O15 (R = La, Nd, Sm, Eu, and Gd) have been determined. These compounds crystallize in the space group P63mc; the unit-cell parameters of Ba4Sr2R2Co4O15 (R from La to Dy) decrease from a = 11.6128(2) Å to 11. 5266(9) Å, c = 6.869 03(11) to 6. 7630(5) Å, and V = 802.23(3) Å3 to 778.17(15) Å3, respectively. In the Ba5SrR2Co4O15 series (R = La to Gd), the unit-cell parameters decrease from a = 11.735 44(14) Å to 11.619 79(12) Å, c = 6.942 89 (14) Å to 6.836 52(8) Å, and V = 828.08(3) Å3 to 799.40(2) Å3. In the general structure of (Ba6−xSrx)R2Co4O15, there are four Co ions per formula unit occupying one CoO6 octahedral and three CoO4 tetrahedral units. Through corner-sharing of these polyhedra, a larger Co4O15 unit is formed. Sr2+ ions adopt both octahedral and 8-fold coordination environment. R3+ ions adopt 8-fold coordination (mixed site with Sr), while the larger Ba2+ ions assume both 10- and 11-fold coordination environments. The samples were found to be insulators. X-ray diffraction patterns of these samples have been determined and submitted to the Powder Diffraction File (PDF).

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46

Bayliss, Peter, and Slade St J. Warne. "Powder X-Ray Diffraction Data of Magnesium-Chlorophoenicite." Powder Diffraction 2, no. 4 (December 1987): 225–26. http://dx.doi.org/10.1017/s0885715600012835.

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AbstractMagnesium-chlorophoenicite may be differentiated from the Mn-analogue chlorophoenicite, because for magnesium-chlorophoenicite at 7Å, whereas for chlorophoenicite.In a review of the literature for the Mineral Powder Diffraction File by Bayliss et al. (1980), powder X-ray diffraction data could not be found of the mineral species magnesium-chlorophoenicite, (Mg,Mn)3Zn2(AsO4)(OH,O)6. Dunn (1981) states that the powder X-ray diffraction data of magnesium-chlorophoenicite is essentially identical to that of chlorophoenicite (Mn analogue) and confirms that the minerals are isostructural.With the crystal structure parameters determined by Moore (1968) for a Harvard University specimen from New Jersey of chlorophoenicite, a powder X-ray diffraction pattern was calculated with the programme of Langhof, Physikalische Chemie Institute, Darmstadt. The calculated pattern was used to correct and complete the indexing of the powder X-ray diffraction data of chlorophoenicite specimen ROM M15667 from Franklin, Sussex County, New Jersey, U.S.A. by the Royal Ontario Museum (PDF 25-1159). With the correctly indexed data of ROM M15667, the unitcell parameters were refined by least-squares analysis and are listed in Table 1.The most magnesium-rich magnesium-chlorophoenicite found in the literature is a description of Harvard University specimen 92803 from Franklin, Sussex County, New Jersey, U.S.A. by Dunn (1981), where Mg is slightly greater than Mn. A 114.6 mm Debye-Schemer film taken of HU92803 with Cu radiation and a Ni filter (CuKα = 1.5418Å) was obtained from Dr. P. Dunn and measured visually. The unit-cell parameters, which were refined by least-squares analysis starting from the unit-cell parameters of PDF 25-1159 in space group C2/m(#12), are listed in Table 1, and give F28 = 4.1(0.050,136) by the method of Smith & Snyder (1979).The hkl, dcalulated, dobserved and relative intensities (I/I1) of HU92803 are presented in Table 2. With the atomic positions and temperature factors of chlorophoenicite determined by Moore (1968), the Mn atomic positions occupied by 50% Mg and 50% Mn, and the unit-cell parameters of HU92803, a powder X-ray diffraction pattern was calculated and Icalculated is recorded in Table 2. A third powder X-ray diffraction pattern was calculated with the Mn atomic positions fully occupied by Mg. Because the atomic scattering factor of Mn is more than twice greater than Mg, chlorophoenicite may be differentiated from magnesium-chlorophoenicite based upon the calculated intensities of the first three reflections given in Table 3.Although the a, c and β unit-cell parameters of chlorphoenicite are similar to those of magnesium-chlorphoenicite, the b unit-cell parameter of chlorophoenicite is significantly greater than that of magnesium-chlorophoenicite (Table 1). The b unit-cell parameter represents the 0–0 distance of the Mn octahedra (Moore, 1968). Since the size of Mn is greater than that of Mg, chlorophoenicite may be differentiated from magnesium-chlorophoenicite based upon the b unit-cell parameter given in Table 1.American Museum of Natural History (New York, N.Y., U.S.A.) specimen 28942 from Sterling Hill, Ogdensburg, New Jersey is composed of willemite, haidingerite and magnesian chlorophoenicite. A spectrographic analysis of the magnesian chlorophoenicite shows As, Mg, Mn and Zn. Powder X-ray diffraction data (PDF 34-190) of the magnesian chlorophoenicite was collected by diffractometer with Cu radiation and a graphite 0002 monochromator (Kα1 = 1.5405) at a scanning speed of 0.125° 2θ per minute. The unit-cell parameters, which were refined by leastsquares analysis starting from the unit-cell parameters of PDF 25-1159, are given in Table 1. Specimen AM 28942 is called chlorophoenicite, because of its large b unit-cell parameter (Table 1), and the I/I1 of 25 for reflection 001 and of 50 for reflection 201 compared to the Icalculated in Table 3.

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47

Blanton, T. N., C. L. Barnes, and D. J. Eichorst. "X-ray powder diffraction data for cubic Sb3Nb3O13." Powder Diffraction 8, no. 3 (September 1993): 188–90. http://dx.doi.org/10.1017/s0885715600018169.

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An Sb3Nb3O13 [Sb(III)2Sb(v)Nb(v)3O13] phase having a defect pyrochlore structure has been prepared by heating a sol–gel derived powder in oxygen. X-ray powder diffraction results indicate that Sb3Nb3O13 has a face-centered cubic structure, S.G. Fd3m(227), with a refined unit cell parameter a =10.4965(1) Å, calculated density Dx=4.893, four molecules per unit cell (Z), and a calculated figure of merit SS/FOM F30=92.4(0.009,38).

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48

Du, Qiaohong, Qing Wang, Xinnuo Xiong, Xia Zeng, and Hui Li. "X-ray powder diffraction data for deferasirox, C21H15N3O4." Powder Diffraction 31, no. 4 (September 19, 2016): 298–300. http://dx.doi.org/10.1017/s0885715616000476.

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X-ray powder diffraction data, unit-cell parameters, and space group for deferasirox, C21H15N3O4, are reported [a = 8.821(7) Å, b = 26.798(2) Å, c = 7.540(4) Å, α = 90°, β = 94.655(2)°, γ = 90°, unit-cell volume V = 1776.7(3) Å3, Z = 4, ρcal = 1.396 g cm−3, and space group P21/c]. All measured lines were indexed and are consistent with the P21/c space group. No detectable impurity was observed.

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49

Suo, Zi Li, Qiao Hong Du, Xin Nuo Xiong, Xia Zeng, Quan Hou, and Hui Li. "X-ray powder diffraction data for azilsartan, C25H20N4O5." Powder Diffraction 33, no. 2 (June 2018): 176–77. http://dx.doi.org/10.1017/s0885715618000210.

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X-ray powder diffraction data, unit-cell parameters and space group for azilsartan, C25H20N4O5, are reported [a = 9.641(3) Å, b = 11.301(9) Å, c = 20.010(8) Å, α = 90°, β = 90.351(5)°, γ = 90°, unit-cell volume V = 2196.735(4) Å3, Z = 4, ρcal = 1.379 g·cm−3, and space group P21/c]. All measured lines were indexed and are consistent with the P21/c space group. No detectable impurities were observed.

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50

Yan, L. Q., Z. W. Jiang, X. D. Peng, L. H. He, and F. W. Wang. "Powder X-ray diffraction and Rietveld analysis of Cd1−xCuxCr2O4(0.1≤x≤0.7)." Powder Diffraction 22, no. 4 (December 2007): 340–43. http://dx.doi.org/10.1154/1.2790964.

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Structural properties of Cd1−xCuxCr2O4(CCCO) have been investigated by means of X-ray powder diffraction and Rietveld analysis. A structural phase transformation from Fd3m to I42d at x=0.64 has been detected. The lattice constant a of the cubic unit cell decreases rapidly with increasing Cu content up to x=0.62. At x=0.64, the cubic unit cell is compressed into a tetragonal cell and CrO6 octahedrons are distorted. With continuing Cu content increases above 0.64, the distortion of the unit cell is released slightly according to the changes in c/a. Magnetic properties of Cd1−xCuxCr2O4(x=0.1,0.3,0.5,0.7) have also been measured and are discussed.

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