EPSRC National Crystallography Service

Data Collection Summary

Summary report for Directory: diska/02src143

Report generated Apr 04, 2002; 09:06:44

Unit cell

10147 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) 14.7341 +/- 0.0002
b (Angstrom) 11.2352 +/- 0.0002
c (Angstrom) 19.3377 +/- 0.0003
alpha (°) 90.000
beta (°) 111.8783 +/- 0.0006
gamma (°) 90.000
Volume (A**3) 2970.62 +/- 0.08
Mosaicity (°) 0.4400 +/- 0.0010

Data collection

Summary

Total number of images collected 114
Total exposure time 30.0 minutes
Data collection exposure time 28.6 minutes
Data collection wall-clock time 42.2 minutes

Experimental Conditions

Wavelength 0.71073 A
Generator setting 50kV 55mA
Crystal to detector distance 33.20 mm

Scans

Type Name # images Total
Rotation
Per frame
Rotation
Exposure
per frame
Used in
scaling
data collection s01f 106 212.0° phi 2.000° 16 seconds Yes
Phi/Chi i01f - i08f 8 10 seconds

Scalepack Scaling

Deleted observations

Overload or incomplete profile  558
Sigma cutoff   75
High resolution limit   20

Final Data Set

Scale factor 10.00
Number of 'full' reflections   3154
Number of 'partial' reflections  22270
Total number of integrated reflections  18037
Total number of unique reflections   7000
Data completeness   98.0%
Resolution range 7.00-0.77 A
Theta range 2.91°-27.48°
Average Intensity   345.1
Average Sigma(I)    10.0
Overall R-merge (linear)   0.039

Crystal Information

Collection Temperature   120 K
Crystal Size  0.25 x 0.25 x 0.2
Crystal Colour  colourless
Crystal Shape  block

 
 

SORTAV Absorption correction

Max Transmission Factor
0.84351 
Min Transmission Factor
0.78297 

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/