EPSRC National Crystallography Service

Data Collection Summary

Summary report for Directory: diska/01src073

Report generated Jan 30, 2001; 15:37:08

Unit cell

18630 reflections with 1.00°<theta<27.48° (resolution between 20.40A and 0.77A) were used for unit cell refinement
 
 
Symmetry used
in scalepack
p1
a (Angstrom) 9.24980 +/- 0.00010
b (Angstrom) 9.7081 +/- 0.0002
c (Angstrom) 17.7378 +/- 0.0004
alpha (°) 93.6164 +/- 0.0008
beta (°) 90.6100 +/- 0.0008
gamma (°) 104.2579 +/- 0.0012
Volume (A**3) 1540.12 +/- 0.05
Mosaicity (°) 0.583 +/- 0.002

Data collection

Summary

Total number of images collected 229
Total exposure time 52.9 minutes
Data collection exposure time 51.9 minutes
Data collection wall-clock time 78.2 minutes

Experimental Conditions

Wavelength 0.71073 A
Generator setting 50.00kV 90.00mA
Crystal to detector distance 30.00 mm

Scans

Type Name # images Total
Rotation
Per frame
Rotation
Exposure
per frame
Used in
scaling
cell determination i01f 10  10.0° phi 1.000° 6 seconds No
data collection s01f 179 358.0° phi 2.000° 14 seconds Yes
data collection s02f 17  34.0° omega 2.000° 14 seconds Yes
data collection s03f 23  46.0° omega 2.000° 14 seconds Yes

Scaling

Deleted observations

Overload or incomplete profile  590
Sigma cutoff   35
High resolution limit   52

Final Data Set

Scale factor 10.00
Number of 'full' reflections   4951
Number of 'partial' reflections  31196
Total number of integrated reflections  23588
Total number of unique reflections   6930
Data completeness   98.4%
Resolution range 20.40-0.77 A
Theta range 1.00°-27.48°
Average Intensity   143.5
Average Sigma(I)     5.1
Overall R-merge (linear)   0.089

Crystal Information

Collection Temperature   150 K
Crystal Size  0.2 x 0.12 x 0.1
Crystal Colour  yellow
Crystal Shape  block (cut)

SORTAV Absorption correction Summary

R(merge) on F2
Before
After
R
0.098 
0.094 
Rw
2.331 
2.333 
Max Transmission Factor
0.806E+00 
Min Transmission Factor
0.627E+00 

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/