Powder X-ray diffraction data of a new calcium zirconium phosphate Ca7Zr(PO4)6

2004 ◽  
Vol 19 (4) ◽  
pp. 385-387 ◽  
Author(s):  
Koichiro Fukuda ◽  
Hiroyuki Matsubara ◽  
Kazuko Fukutani ◽  
Hideto Yoshida

X-ray powder diffraction data for a new calcium zirconium phosphate Ca7Zr(PO4)6 are reported. The sample was prepared by heating mixtures of CaCO3, ZrO2, and NH4H2PO4 in prescribed molar ratios at 1623 K. Powder diffraction data were collected with a laboratory X-ray source (Cu Kα) for refinement of unit-cell parameters and intensity measurement of individual reflections. Crystallographic data were Ca7Zr(PO4)6, cubic, I-43d (No. 220), a=0.98338(1) nm, V=0.95097(3) nm3, Z=2, and Dx=3.29 Mg m−3. This compound is most probably isomorphous with eulytite.

2001 ◽  
Vol 16 (2) ◽  
pp. 115-119 ◽  
Author(s):  
S. Yamazaki ◽  
H. Toraya

X-ray powder diffraction data for synthetic materials MgMnSiO4 and Mg0.6Mn1.4SiO4 are reported. Samples were prepared by firing mixtures of MgO, MnCO3, and SiO2 in prescribed molar ratios at 1523 K. Powder diffraction data were collected with a laboratory X-ray source (CuKα) for refinement of unit-cell parameters and synchrotron radiation (λ=1.1980 Å) for intensity measurement of individual reflections. Crystallographic data were MgMnSiO4, orthorhombic, Pnma (No. 62), a=10.4510(1), b=6.12446(5), c=4.80757(4) Å, V=307.717(4) Å3, Z=4, and Dx=3.697 g·cm−3, and Mg0.6Mn1.4SiO4, orthorhombic, Pnma (No. 62), a=10.5241(1), b=6.17903(6), c=4.83927(5) Å, V=314.692(5) Å3, Z=4, and Dx=3.873 g·cm−3.


1996 ◽  
Vol 11 (1) ◽  
pp. 7-8 ◽  
Author(s):  
Hee-Lack Choi ◽  
Nobuo Ishizawa ◽  
Naoya Enomoto ◽  
Zenbe-e Nakagawa

X-ray powder-diffraction data for Pb2(C2O4)(NO3)2·2H2O were obtained. The crystal system was determined to be monoclinic. The unit-cell parameters were refined to a=10.613(2) Å, b=7.947(2) Å, c=6.189(1) Å, and β=104.48(2)°.


1998 ◽  
Vol 13 (4) ◽  
pp. 246-248 ◽  
Author(s):  
Nubuo Ishizawa ◽  
Atsushi Saiki ◽  
Kyoji Ohdan ◽  
Mamoru Ai

X-ray powder-diffraction data were collected for a new iron phosphate, Fe(PO4)·0.5H2O, obtained by reducing FePO4 with oxalic acid at 220 °C in the presence of water vapor and oxygen. The crystal system was determined to be orthorhombic with unit-cell parameters a=15.991(6) Å, b=20.156(7) Å, and c=7.223(2) Å.


1994 ◽  
Vol 9 (3) ◽  
pp. 187-188 ◽  
Author(s):  
Hee-Lack Choi ◽  
Naoya Enomoto ◽  
Nobuo Ishizawa ◽  
Zenbe-e Nakagawa

X-ray powder diffraction data for Ti2O2(C2O4)(OH)2·H2O were obtained. The crystal system was determined to be orthorhombic with space group C2221. The unit cell parameters were refined to a = 1.0503(2) nm, b = 1.5509(3) nm, and c = 0.9700(1) nm.


2009 ◽  
Vol 24 (3) ◽  
pp. 250-253 ◽  
Author(s):  
Peter Varlashkin

The room temperature powder pattern of lapatinib ditosylate monohydrate (active ingredient in Tykerb used to treat refractory breast cancer) was indexed and the cell from the single crystal X-ray diffraction structure was refined using the experimental capillary data. Unit-cell parameters for the orthorhombic compound with space group Pbca refined from powder diffraction data are a=9.6850±0.0009 Å, b=29.364±0.003 Å, and c=30.733±0.003 Å, α=β=γ=90°, z=8, V=8740.1 Å3. Values of 2θ, d, I, and Miller indices are reported.


1998 ◽  
Vol 13 (3) ◽  
pp. 134-135
Author(s):  
Fabrice Goubard ◽  
Samuel Llorente ◽  
Valérie Delobbe ◽  
Daniel Bizot ◽  
Jean Chassaing

X-ray diffraction experiments performed on the compounds FeIINbIVF6 and CoIINbIVF6 have shown that they crystallize in the rhombohedral system, space group R3¯ with a cationic ordering. Unit cell parameters were determined: a=5.4201(8) Å, c=14.072(2) Å, V=357.8(1) Å, Z=3 for FeNbF6, and a=5.351(2) Å, c=13.960(6) Å, V=346.2(2) Å, Z=3 for CoNbF6. Synthesis and powder diffraction data are reported.


1985 ◽  
Vol 18 (6) ◽  
pp. 541-541
Author(s):  
A. Sen Gupta ◽  
C. Aravindakshan

Indexing of the powder diffraction data and refinement of the unit-cell parameters for N,N'-bis(aminoacetyl)urea (NH2CH2CO)2(NH)2CO are reported. The refined crystallographic data are: C5H10N403, P21/n (probable) a = 5.5436 (6) Å, b = 12.0338 (8) Å, c = 5.1243 (4) Å, β = 111.696 (6)°, V = 317.63, Z = 2, Dm = 1.84, Dx = 1.82 g cm-3 Cu Kα. The quantitative figure of merit (FN ) is F 20 = 22(0.014556, 64). The JCPDS Diffraction File No. for C5H10N403 is 36-1999.


1992 ◽  
Vol 7 (1) ◽  
pp. 44-46 ◽  
Author(s):  
G. Wallez ◽  
A. Elfakir ◽  
M. Quartern

AbstractTwo new compounds TlBeXO4 (X = P, As) have been synthesized by solid state reaction. Single crystals were obtained. These compounds are isotypic, space group Pna21, Z = 4. Unit-cell parameters were determined. Powder diffraction data for each phase are reported.


2021 ◽  
pp. 1-3
Author(s):  
J. Maixner ◽  
J. Ryšavý

X-ray powder diffraction data, unit-cell parameters, and space group for tetrazene nitrate monohydrate, C2H9N11O4, are reported [a = 5.205(1) Å, b = 13.932(3) Å, c = 14.196(4) Å, β = 97.826(3)°, unit-cell volume V = 1019.8(4) Å3, Z = 4, and space group P21/c]. All measured lines were indexed and are consistent with the P21/c space group. No detectable impurities were observed.


2002 ◽  
Vol 17 (1) ◽  
pp. 41-43 ◽  
Author(s):  
Rashmi ◽  
U. Dhawan

ZnGa2Te4 was found to crystallize in a defect tetrahedral structure with possible space group I4(82) with Z=2. Complete X-ray powder diffraction data were obtained and the unit cell parameters a and c and X-ray density were calculated. These were a=0.5930(1) nm, c=1.1859(3) nm, and Dx=5.7×103 kg/m3.


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