EPSRC National Crystallography Service

Data Collection Summary

Summary report for Directory: diska/02src702

Report generated Nov 20, 2002; 09:19:02

Unit cell

75856 reflections with 1.02°<theta<27.48° (resolution between 20.00A and 0.77A) were used for unit cell refinement

Symmetry used
in scalepack
p2
a (Angstrom) 15.1883 +/- 0.0006
b (Angstrom) 17.5393 +/- 0.0009
c (Angstrom) 16.2352 +/- 0.0008
alpha (°) 90.000
beta (°) 108.039 +/- 0.002
gamma (°) 90.000
Volume (A**3) 4112.3 +/- 0.3
Mosaicity (°) 2.034 +/- 0.003

Data collection

Summary

Total number of images collected 172
Total exposure time 56.3 minutes
Data collection exposure time 54.6 minutes
Data collection wall-clock time 111.7 minutes

Experimental Conditions

Wavelength 0.71073 A
Generator setting 50kV 50mA

Scans

Type Name # images Total
Rotation
Per frame
Rotation
Exposure
per frame
Detector
distance
Used in
scaling
cell determination i01f 10  10.0° phi 1.000° 10 seconds 45.00 mm No
data collection s01f 146 292.0° phi 2.000° 20 seconds 30.00 mm Yes
data collection s02f 16  32.0° omega 2.000° 20 seconds 30.00 mm Yes

Scalepack Scaling

Deleted observations

Zero sigma or profile test   18
Overload or incomplete profile 2163
Sigma cutoff  733
High resolution limit  540

Final Data Set

Scale factor 10.00
Number of 'full' reflections    703
Number of 'partial' reflections 108982
Total number of integrated reflections  31197
Total number of unique reflections   8740
Data completeness   90.7%
Resolution range 20.00-0.77 A
Theta range 1.02°-27.48°
Average Intensity    21.0
Average Sigma(I)     2.2
Overall R-merge (linear)   0.115

Crystal Information

Collection Temperature   120 K
Crystal Size  0.12 x 0.1 x 0.06 
Crystal Colour  colourless
Crystal Shape  block
 
 
 

SORTAV Absorption correction

Max Transmission Factor
0.79108
Min Transmission Factor
0.61915

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/