EPSRC National Crystallography Service

Data Collection Summary

Summary report for Directory: diska/00src478

Report generated Oct 27, 2000; 13:51:26

Unit cell

13383 reflections with 1.00°<theta<27.48° (resolution between 20.40A and 0.77A) were used for unit cell refinement
 
 
Symmetry used
in scalepack
c2
a (Angstrom) 14.8454 +/- 0.0007
b (Angstrom) 14.9999 +/- 0.0009
c (Angstrom) 9.0450 +/- 0.0005
alpha (°) 90.000
beta (°) 115.041 +/- 0.003
gamma (°) 90.000
Volume (A**3) 1824.81 +/- 0.18
Mosaicity (°) 1.352 +/- 0.005

Data collection

Summary

Total number of images collected 128
Total exposure time 61.1 minutes
Data collection exposure time 59.4 minutes
Data collection wall-clock time 74.1 minutes

Experimental Conditions

Wavelength 0.71073 A
Generator setting 50.00kV 75.00mA
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° 10 seconds No
data collection s01f 101 202.0° phi 2.000° 30 seconds Yes
data collection s02f 17  34.0° omega 2.000° 30 seconds Yes

Scaling

Deleted observations

Zero sigma or profile test    1
Overload or incomplete profile  289
Sigma cutoff   43
High resolution limit   38

Final Data Set

Scale factor 10.00
Number of 'full' reflections    428
Number of 'partial' reflections  17961
Total number of integrated reflections   7401
Total number of unique reflections   2146
Data completeness   99.0%
Resolution range 20.40-0.77 A
Theta range 1.00°-27.48°
Average Intensity   100.7
Average Sigma(I)     4.8
Overall R-merge (linear)   0.098

Crystal Information

Collection Temperature   150 K
Crystal Size  0.24 x 0.18 x 0.05
Crystal Colour  colourless
Crystal Shape  plate

SORTAV Absorption correction Summary

R(merge) on F2
Before
After
R
0.085 
0.081 
Rw
0.096 
0.086 
Max Transmission Factor
0.898E+00 
Min Transmission Factor
0.730E+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/