Database of Zeolite Structures
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IWV
Framework Type
IWV
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IWV
Tiling
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IWV
Framework
ITQ-27
XPD
Calculated pattern
ITQ-27
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IWV
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IWV
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IWV
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IWV
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IWV
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IWV
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IWV
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IWV
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IWV
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Powder Pattern
Framework Type
IWV
Powder Diffraction Pattern for ITQ-27
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:
F m m m
(# 69)
Cell parameters:
a
=
27.7508 Å
b
=
25.2969Å
c
=
13.7923 Å
α =
90°
β =
90°
γ =
90 °
Chemical Formula
[
Al
5
Si
147
O
304
]
-
IWV
Refinement:
Reference:
Dorset, D.L., Kennedy, G.J., Strohmaier, K.G., Díaz-Cabañas, M.J., Rey, F. and Corma, A.
J. Am. Chem. Soc.
,
128
, 8862-8867 (2006)
Atomic Coordinates:
Atom
Form Factor
x
y
z
PP
B(iso)
Si1
Si
0.1478
0.0995
0.1968
1
1.184355
Si2
Si
0.3033
0
0.2101
1
1.184355
Si3
Si
0.0544
0.0656
0.1128
1
1.184355
Si4
Si
0.28
0.1959
0
1
1.184355
Si5
Si
0.3068
0.1934
0.2129
1
1.184355
Si6
Si
0.205
0.1011
0
1
1.184355
Si7
Si
0.2704
0
0
1
1.184355
O1
O
0.0908
0.0951
0.1828
1
2.526624
O2
O
0.1725
0.1027
0.0948
1
2.526624
O3
O
0.1533
0.1539
0.2514
1
2.526624
O4
O
0.1693
0.0519
0.2551
1
2.526624
O5
O
0.25
0
0.25
1
2.526624
O6
O
0.304
0
0.0946
1
2.526624
O7
O
0.0574
0
0.1204
1
2.526624
O8
O
0.0634
0.0831
0
1
2.526624
O9
O
0
0.084
0.1428
1
2.526624
O10
O
0.3126
0.193
0.9034
1
2.526624
O11
O
0.2428
0.1483
0
1
2.526624
O12
O
0.25
0.25
0
1
2.526624
O13
O
0.25
0.1846
0.25
1
2.526624
O14
O
0.3264
0.25
0.25
1
2.526624
O15
O
0.2362
0.0501
0
1
2.526624
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IZA-SC
)