EPSRC National Crystallography Service

Data Collection Summary

Summary report for Directory: diska/01sot104

Report generated Jul 28, 2001; 17:18:30

Unit cell

9132 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) 7.97030 +/- 0.00010
b (Angstrom) 12.1281 +/- 0.0002
c (Angstrom) 14.1205 +/- 0.0003
alpha (°) 79.1377 +/- 0.0006
beta (°) 83.0590 +/- 0.0006
gamma (°) 77.2927 +/- 0.0012
Volume (A**3) 1303.16 +/- 0.04
Mosaicity (°) 0.3490 +/- 0.0010

Data collection

Summary

Total number of images collected 223
Total exposure time 73.2 minutes
Data collection exposure time 72.5 minutes
Data collection wall-clock time 99.0 minutes

Experimental Conditions

Wavelength 0.71073 A
Generator setting 50kV 60mA
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 181 362.0° phi 2.000° 20 seconds Yes
data collection s02f 17  34.0° omega 2.000° 20 seconds Yes
data collection s03f 17  34.0° omega 2.000° 20 seconds Yes
Phi/Chi i01f - i08f 8 5 seconds

Scalepack Scaling

Deleted observations

Overload or incomplete profile  443
Sigma cutoff   25
High resolution limit   33

Final Data Set

Scale factor 10.00
Number of 'full' reflections   4527
Number of 'partial' reflections  22079
Total number of integrated reflections  19943
Total number of unique reflections   5895
Data completeness   99.0%
Resolution range 7.00-0.77 A
Theta range 2.91°-27.48°
Average Intensity   115.4
Average Sigma(I)     4.1
Overall R-merge (linear)   0.060

Crystal Information

Collection Temperature   120 K
Crystal Size  0.38 x 0.14 x 0.06
Crystal Colour  COLOURLESS
Crystal Shape  BLOCK

SORTAV Absorption correction Summary

R(merge) on F2
Before
After
R
0.073 
0.064 
Rw
0.686 
0.678 
Max Transmission Factor
0.993 tba 
Min Transmission Factor
0.818 tba 

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/