EPSRC National Crystallography Service

Data Collection Summary

Summary report for Directory: diska/01src105

Report generated Feb 05, 2001; 13:08:51

Unit cell

8553 reflections with 2.91°<theta<27.48° (resolution between 7.00A and 0.77A) were used for unit cell refinement
 
 
Symmetry used
in scalepack
p1
a (Angstrom) 7.2285 +/- 0.0004
b (Angstrom) 9.2463 +/- 0.0005
c (Angstrom) 33.461 +/- 0.002
alpha (°) 89.924 +/- 0.002
beta (°) 89.957 +/- 0.002
gamma (°) 90.013 +/- 0.005
Volume (A**3) 2236.4 +/- 0.2
Mosaicity (°) 0.836 +/- 0.004

Data collection

Summary

Total number of images collected 113
Total exposure time 29.5 minutes
Data collection exposure time 28.4 minutes
Data collection wall-clock time 41.1 minutes

Experimental Conditions

Wavelength 0.71073 A
Generator setting 50.00kV 75.00mA
Crystal to detector distance 30.00 mm

Scans

Type Name # images Total
Rotation
Per frame
Rotation
Exposure
per frame
Used in
scaling
data collection s01f 89 178.0° phi 2.000° 16 seconds Yes
data collection s02f 16  32.0° omega 2.000° 16 seconds Yes

Scaling

Deleted observations

Zero sigma or profile test    1
Overload or incomplete profile  165
Sigma cutoff   16
High resolution limit    5

Final Data Set

Scale factor 10.00
Number of 'full' reflections   1485
Number of 'partial' reflections  12756
Total number of integrated reflections   7818
Total number of unique reflections   4721
Data completeness   46.0%
Resolution range 7.00-0.77 A
Theta range 2.91°-27.48°
Average Intensity    78.6
Average Sigma(I)     5.0
Overall R-merge (linear)   0.195

Crystal Information

Collection Temperature   150 K
Crystal Size  0.6 x 0.3 x 0.08
Crystal Colour  Colourless
Crystal Shape  plate

SORTAV Absorption correction Summary

R(merge) on F2
Before
After
R
0.179 
0.082 
Rw
0.189 
0.131 
Max Transmission Factor
0.292E+00 
Min Transmission Factor
0.292E+00 

N.B. The scaling summary is redundant as outliers are treated during the absorption correction using SORTAV. The quoted data completeness is for the stated resolution ranges, and the Overall R-merge is that before the absorption correction. The SORTAV transmission factors are based on a crude approximation and the expected formula (not always correct!). For more information visit the service web site at: http://www.soton.ac.uk/~xservice/