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[sdpd] UPPW-9 solutions - UPPW-10 problem
Hi,
Very few participant for the UPPW-9. Discordant results
probably due to the low quality of the data (not a Grant-in-Aid) :
http://www.cristal.org/uppw/uppw9.html
UPPW-10 restart with a Grant-in-Aid ICDD entry :
http://www.cristal.org/uppw/uppw10.html
UPPW-10
January 23, 2004
Problem :
ICDD 44-1791
C26H32F2O7 - Diflorasone diacetate
Wavelength 1.54178 A
Filter : monochromator
Mica used as internal standard
Ref : J. Bernstein & L. Zevin, Ben-Gurion University of the
Negev, Beer-Sheva, Israel, ICDD Grant-in-Aid (1993).
CAS #: 33564-36-7
Mwt : 494.53
Sample from Ciba-Geigy AG Postfach CH-4002 Bassel (Schweiz)
Search in the Cambridge Structural Database for C26H32F2O7 :
found fluorocinonide P212121, a = 14.169, b = 6.297, c = 28.097
V = 2506.9A**3, Z = 4
d intensities
9.2298 23
8.9729 88
7.7400 35
7.6093 100
6.9416 6
6.6803 17
6.0586 7
5.9773 65
5.8733 35
5.8048 22
5.5684 87
5.4768 17
5.4038 6
5.1318 39
4.6991 24
4.4205 16
4.2996 18
4.1369 3
3.8673 12
3.7867 12
3.6796 7
3.6567 7
3.6239 3
3.5366 11
3.2843 15
3.2048 7
3.1130 6
3.0514 3
3.0265 6
2.9564 9
2.9360 5
2.8908 3
2.8240 3
2.7314 4
2.6882 3
2.6551 2
Best wishes,
Armel
PS - Keep an eye on these UPPWs. One of the next ones will
propose raw data (conventional X-ray and maybe synchrotron
as well).
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