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EWO
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EWO
Framework
ECNU-21
from observed XRD pattern
ECNU-21 calcined
XPD
Calculated pattern
ECNU-21
Measured pattern
ECNU-21, calcined
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EWO
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EWO
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EWO
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EWO
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EWO
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EWO
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EWO
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EWO
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EWO
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Powder Pattern
Framework Type
EWO
Powder Diffraction Pattern for ECNU-21
Input Parameters
Wavelength:
As specified
CrA1 (2.28970 Å)
CrA2 (2.29361 Å)
Cr (2.29090 Å)
FeA1 (1.93604 Å)
FeA2 (1.93998 Å)
>Fe (1.93730 Å)
CuA1 (1.54056 Å)
CuA2 (1.54439 Å)>
Cu (1.54180 Å)
MoA1 (0.70930 Å)
MoA2 (0.71359 Å)
Mo (0.71070 Å)
AgA1 (0.55941 Å)
AgA2 (0.56380 Å)
Ag (0.56080 Å)
or
Å
keV
2θ range:
° -
°
Step size:
°2θ
Polarization factor:
Background:
Reference peak is
highest peak in 2θ range
peak closest to
°2θ
reflection (
hkl
)
scaled to
Intensity axis:
-
Peak shape
Pseudo-Voigt: (1-
n
)Gaussian +
n
Lorentzian
FWHM = sqrt (U + V tan θ + W tan
2
θ)
Mixing parameter (
n
):
%
Peak range:
FWHM
Peak width:
set UVW at:
U =
V =
W =
Calculate UVW such that
FWHM =
at
°2θ
FWHM =
at
°2θ
FWHM =
at
°2θ
Select Output
List hkl and intensity
List powder pattern
plot powder pattern
Crystal Data
Space Group:
C 2 2 2
(# 21)
Cell parameters:
a
=
13.7419 Å
b
=
17.166Å
c
=
5.0296 Å
α =
90°
β =
90°
γ =
90 °
Chemical Formula
[
Si
23.3
Ge
0.7
O
48
]
-
EWO
Refinement:
X-ray Rietveld refinement, R
I
= 0.018, R
wp
= 0.133, R
exp
= 0.089
Reference:
Liu, X., Mao, W., Jiang, J., Lu, X., Peng, M., Xu, H., Han, L., Che, S. and Wu, P.
Chem. Eur. J.
,
25
, 4520-4529 (2019)
Atomic Coordinates:
Atom
Form Factor
x
y
z
PP
B(iso)
Ge1
Ge
0.208
0.334
0.979
0.019
3.3
Si1
Si
0.208
0.334
0.979
0.981
3.3
Ge2
Ge
0.2016
0.0908
0.47
0.032
3.3
Si2
Si
0.2016
0.0908
0.47
0.968
3.3
Si3
Si
0
0.1701
0.5
1
3.3
Ge4
Ge
0
0.2824
0
0.07
3.3
Si4
Si
0
0.2824
0
0.93
3.3
O01
O
0.2349
0.3639
0.687
1
2.5
O02
O
0.2444
0.1086
0.185
1
2.5
O03
O
0.0938
0.3364
0.029
1
2.5
O04
O
0.25
0.25
0.038
1
2.5
O05
O
0.011
0.2262
0.751
1
2.5
O06
O
0.2064
0
0.5
1
2.5
O07
O
0.0924
0.115
0.477
1
2.5
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Copyright © 2017 Structure Commission of the International Zeolite Association (
IZA-SC
)