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Table 2 Summary of various parameters obtained from XRD pattern analysis of products A–E

From: Morphologically controlled synthesis of ferric oxide nano/micro particles and their catalytic application in dry and wet media: a new approach

Parameter Product C and D Product A and B
Name of compound Magnetite Magnetite
JCPDS no. 19-0629 28-0491
Crystal system Cubic Monoclinic
Type Face centered Primitive
Space group Fd-3 m (227) P12/m1 (10)
Crystallite size (Å) 282 282
Cell parameters
 a, b and c (Å) 8.3851, 8.3851 and 8.3851 5.9444, 5.9247 and 8.3875
 α, β and γ (°) 90.0, 90.0 and 90.0 90.0, 90.237° and 90.0
Atom coordinates
 x, y and z of iron 0.125, 0.125 and 0.125 0.750, 0.500 and 0.125
0.500, 0.500 and 0.500 0.000, 0.500 and 0.000
  0.250, 0.250 and 0.250
  0.000, 0.000 and 0.500
  0.500, 0.500 and 0.000
  0.500, 0.000 and 0.500
  0.750, 0.000 and 0.125
 x, y and z of oxygen 0.253, 0.253 and 0.253 0.250, 0.260 and 0.005
  0.510, 0.500 and 0.755
  0.250, 0.240 and 0.495
  0.010, 0.000 and 0.255
  0.510, 0.000 and 0.745
  0.010, 0.500 and 0.245
No. of formula units per unit cells (Z) 8.0 4.0
Density (g/cm3) 5.21600 5.2060
Volume (Å3) 591.9 225.6
Spacing (dhkl) (Å), 2-theta (°) and miller indices (hkl) 4.84743, 18.286 and (111) 5.43, 16.310 and (010)
  2.96843, 30.079 and (220) 4.05653, 21.892 and (100)
2.53149, 35.429 and (311) 2.88045, 31.021 and (101)
2.42372, 37.061 and (222) 2.715, 32.963 and (020)
2.09900, 43.058 and (400) 2.69153, 33.259 and (002)
1.9261, 47.144 and (331) 2.59659, 34.513 and (\( \bar{1}0 2 \) )
1.71383, 53.416 and (422) 2.20488, 40.895 and (\( \bar{1}21 \))
1.61581, 56.942 and (333) 1.78442, 51.147 and (\( \bar{2}12 \))
1.48422, 62.527 and (440) 1.74586, 52.361 and (201)
1.41918, 65.743 and (531) 1.65292, 55.551 and (130)
1.39933, 66.797 and (442) 1.63239, 56.311 and (\( \bar{1}31 \))
1.32752, 70.934 and (620) 1.39209, 67.190 and (212)
1.28038, 73.969 and (533) 1.3575, 69.141 and (040)
1.26574, 74.970 and (622) 1.34287, 70.004 and (132)
  1.30996, 72.033 and (123)
  1.28733, 73.504 and (140)
  1.27756, 74.160 and (\( \bar{1}41 \))
  1.24264, 76.613 and (\( \bar{1}24 \))
1.23355, 77.282 and (301)
1.21037, 79.047 and (320)