EPSRC National Crystallography Service

Data Collection Summary

Summary report for Directory: diska/01src108

Report generated Feb 07, 2001; 10:27:16

Unit cell

3865 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) 7.6905 +/- 0.0003
b (Angstrom) 9.9296 +/- 0.0004
c (Angstrom) 9.0526 +/- 0.0005
alpha (°) 90.000
beta (°) 97.0730 +/- 0.0015
gamma (°) 90.000
Volume (A**3) 686.03 +/- 0.05
Mosaicity (°) 0.522 +/- 0.004

Data collection

Summary

Total number of images collected 121
Total exposure time 31.9 minutes
Data collection exposure time 30.5 minutes
Data collection wall-clock time 45.1 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
data collection s01f 91 182.0° phi 2.000° 16 seconds Yes
data collection s02f 16  32.0° omega 2.000° 16 seconds Yes
data collection s03f 6  12.0° omega 2.000° 16 seconds Yes

Scaling

Deleted observations

Overload or incomplete profile  127
Sigma cutoff    2
High resolution limit    1

Final Data Set

Scale factor 10.00
Number of 'full' reflections   1262
Number of 'partial' reflections   6686
Total number of integrated reflections   5220
Total number of unique reflections   1664
Data completeness   99.0%
Resolution range 7.00-0.77 A
Theta range 2.91°-27.48°
Average Intensity    70.1
Average Sigma(I)     3.3
Overall R-merge (linear)   0.127

Crystal Information

Collection Temperature   150 K
Crystal Size  0.38 x 0.18 x 0.05
Crystal Colour  colourless
Crystal Shape  plate

SORTAV Absorption correction Summary

R(merge) on F2
Before
After
R
0.103 
0.080 
Rw
0.106 
0.370 
Max Transmission Factor
0.457E+00 
Min Transmission Factor
0.457E+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/