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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
)