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【答案】应助回帖
感谢参与，应助指数 +1
PDF#53-0131: QM=Star(S); d=(Unknown); I=(Unknown)
Barium Cobalt Praseodymium Oxide
Pr Ba Co2 O5.68 Black
Radiation=CoKa1 Lambda=1.78897 Filter=Ge
Calibration= 2T=22.713-96.957 I/Ic(RIR)=0.41
Ref: Anderson, P., Kirk, C., West, A., Sheffield Univ., Dept. of Engineering Materials, England, UK.
ICDD Grant-in-Aid (2001)
Tetragonal - (Unknown), P4/mmm (123) Z= mp=
CELL: 3.9094 x 3.9094 x 7.6358 <90.0 x 90.0 x 90.0> P.S=tP0 (?)
Density(c)=6.929 Density(m)=6.67A Mwt=486.98 Vol=116.70 F(30)=46.3(.0125,52/0)
Ref: Troyanchuk, I. et al.
J. Phys.: Condens. Matter, v12 p2485 (2000)
Strong Lines: 2.73/X 2.77/5 1.96/3 1.59/3 2.24/3 3.91/2 1.57/1 1.91/1 1.37/1 3.82/1
NOTE: This material has an oxygen-deficient double perovskite structure.
Sample shows polymorphism with tetragonal to orthorhombic to (this sample) tetragonal transitions, see Anderson, P.
et al., J.
Solid State Chem.
(to be published).
Prepared by solid state reaction of Pr6 O11, Ba C O3 and Co3 O4 at 1100 C in air for 7 days.
Samples were pelleted, ground daily and fired on Pt foil.
2-Theta d(?) I(v) ( h k l ) Theta 1/(2d) 2pi/d n^2
22.713 3.9118 12.0 ( 1 0 0) 11.357 0.1278 1.6062
23.270 3.8194 6.0 ( 0 0 2) 11.635 0.1309 1.6450
32.348 2.7653 48.0 ( 1 1 0) 16.174 0.1808 2.2722
32.749 2.7323 100.0 ( 1 0 2) 16.375 0.1830 2.2996
34.457 2.6007 <1 ( 1 1 1) 17.228 0.1923 2.4160
35.218 2.5462 <1 ( 0 0 3) 17.609 0.1964 2.4677
40.234 2.2396 31.0 ( 1 1 2) 20.117 0.2233 2.8055
46.404 1.9552 36.0 ( 2 0 0) 23.202 0.2557 3.2137
47.589 1.9092 16.0 ( 0 0 4) 23.795 0.2619 3.2910
52.274 1.7486 5.0 ( 2 1 0) 26.137 0.2859 3.5933
52.545 1.7402 5.0 ( 2 0 2) 26.272 0.2873 3.6106
53.356 1.7156 5.0 ( 1 0 4) 26.678 0.2914 3.6623
57.960 1.5898 45.0 ( 2 1 2) 28.980 0.3145 3.9521
58.721 1.5710 24.0 ( 1 1 4) 29.361 0.3183 3.9994
67.728 1.3824 12.0 ( 2 2 0) 33.864 0.3617 4.5453
68.662 1.3658 20.0 ( 2 0 4) 34.331 0.3661 4.6003
72.453 1.3034 <1 ( 3 0 0) 36.227 0.3836 4.8206
72.684 1.2998 2.0 ( 2 2 2) 36.342 0.3847 4.8339
73.368 1.2894 4.0 ( 2 1 4) 36.684 0.3878 4.8730
74.478 1.2729 <1 ( 0 0 6) 37.239 0.3928 4.9362
77.077 1.2363 9.0 ( 3 1 0) 38.538 0.4044 5.0821
77.296 1.2334 9.0 ( 3 0 2) 38.648 0.4054 5.0943
79.065 1.2102 9.0 ( 1 0 6) 39.533 0.4132 5.1921
81.821 1.1762 7.0 ( 3 1 2) 40.910 0.4251 5.3418
83.576 1.1559 2.0 ( 1 1 6) 41.788 0.4326 5.4357
86.952 1.1195 10.0 ( 2 2 4) 43.476 0.4466 5.6124
90.554 1.0841 <1 ( 3 2 0) 45.277 0.4612 5.7957
91.419 1.0761 <1 ( 3 0 4) 45.709 0.4646 5.8388
92.482 1.0665 <1 ( 2 0 6) 46.241 0.4688 5.8915
95.215 1.0430 10.0 ( 3 2 2) 47.608 0.4794 6.0243
95.869 1.0376 11.0 ( 3 1 4) 47.935 0.4819 6.0556
96.957 1.0288 11.0 ( 2 1 6) 48.479 0.4860 6.1072 |
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