EPSRC National Crystallography Service

Data Collection Summary

Summary report for Directory: diska/02src305

Report generated May 20, 2002; 09:45:03

Unit cell

11104 reflections with 2.91°<theta<27.48° (resolution between 7.00A and 0.77A) were used for unit cell refinement
 
 
Symmetry used
in scalepack
p222
a (Angstrom) 9.7279 +/- 0.0002
b (Angstrom) 10.2527 +/- 0.0002
c (Angstrom) 20.2703 +/- 0.0004
alpha (°) 90.000
beta (°) 90.000
gamma (°) 90.000
Volume (A**3) 2021.70 +/- 0.07
Mosaicity (°) 0.376 +/- 0.002

Data collection

Summary

Total number of images collected 209
Total exposure time 35.6 minutes
Data collection exposure time 34.2 minutes
Data collection wall-clock time 61.3 minutes

Experimental Conditions

Wavelength 0.71073 A
Generator setting 50kV 85mA
Crystal to detector distance 35.00 mm

Scans

Type Name # images Total
Rotation
Per frame
Rotation
Exposure
per frame
Used in
scaling
data collection s01f 160 160.0° phi 1.000° 10 seconds Yes
data collection s02f 41  41.0° omega 1.000° 10 seconds Yes
Phi/Chi i01f - i08f 8 10 seconds

Scalepack Scaling

Deleted observations

Zero sigma or profile test   15
Overload or incomplete profile  250
Sigma cutoff    9

Final Data Set

Scale factor 10.00
Number of 'full' reflections   2077
Number of 'partial' reflections  16496
Total number of integrated reflections  11300
Total number of unique reflections   2647
Data completeness   99.2%
Resolution range 7.00-0.77 A
Theta range 2.91°-27.48°
Average Intensity    33.2
Average Sigma(I)     1.7
Overall R-merge (linear)   0.070

Crystal Information

Collection Temperature   120 K
Crystal Size  0.18 x 0.18 x 0.12 
Crystal Colour  Colourless
Crystal Shape  Block

 
 

SORTAV Absorption correction

Max Transmission Factor
0.95060 
Min Transmission Factor
0.91124 

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/