EPSRC National Crystallography Service

Data Collection Summary

Summary report for Directory: diska/02src173

Report generated Apr 17, 2002; 10:42:31

Unit cell

37424 reflections with 2.91°<theta<27.48° (resolution between 7.00A and 0.77A) were used for unit cell refinement
 
 
Symmetry used
in scalepack
p2
a (Angstrom) 10.8380 +/- 0.0006
b (Angstrom) 27.4492 +/- 0.0014
c (Angstrom) 19.9239 +/- 0.0014
alpha (°) 90.000
beta (°) 92.810 +/- 0.002
gamma (°) 90.000
Volume (A**3) 5920.1 +/- 0.6
Mosaicity (°) 1.158 +/- 0.004

Data collection

Summary

Total number of images collected 162
Total exposure time 53.3 minutes
Data collection exposure time 51.9 minutes
Data collection wall-clock time 73.0 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 103 206.0° phi 2.000° 20 seconds Yes
data collection s02f 20  40.0° omega 2.000° 20 seconds Yes
data collection s03f 31  62.0° omega 2.000° 20 seconds Yes
Phi/Chi i01f - i08f 8 10 seconds

Scalepack Scaling

Deleted observations

Zero sigma or profile test 1646
Overload or incomplete profile 1221
Sigma cutoff  253
High resolution limit   46

Final Data Set

Scale factor 10.00
Number of 'full' reflections   5031
Number of 'partial' reflections  72421
Total number of integrated reflections  33060
Total number of unique reflections  10546
Data completeness   76.0%
Resolution range 7.00-0.77 A
Theta range 2.91°-27.48°
Average Intensity     3.8
Average Sigma(I)     1.2
Overall R-merge (linear)   0.138

Crystal Information

Collection Temperature   120 K
Crystal Size  0.3 x 0.1 x 0.04 
Crystal Colour  Colourless
Crystal Shape  Shard

 
 

SORTAV Absorption correction

Max Transmission Factor
0.95218 
Min Transmission Factor
0.89357 

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/