EPSRC National Crystallography Service

Data Collection Summary

Summary report for Directory: diska/01src103

Report generated Feb 02, 2001; 11:53:44

Unit cell

18684 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) 7.7501 +/- 0.0002
b (Angstrom) 9.3637 +/- 0.0003
c (Angstrom) 14.6604 +/- 0.0004
alpha (°) 83.3715 +/- 0.0010
beta (°) 79.6256 +/- 0.0011
gamma (°) 88.2320 +/- 0.0015
Volume (A**3) 1039.46 +/- 0.05
Mosaicity (°) 0.868 +/- 0.002

Data collection

Summary

Total number of images collected 228
Total exposure time 37.8 minutes
Data collection exposure time 37.1 minutes
Data collection wall-clock time 63.0 minutes

Experimental Conditions

Wavelength 0.71073 A
Generator setting 50.00kV 70.00mA
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° 4 seconds No
data collection s01f 181 362.0° phi 2.000° 10 seconds Yes
data collection s02f 17  34.0° omega 2.000° 10 seconds Yes
data collection s03f 20  40.0° omega 2.000° 10 seconds Yes

Scaling

Deleted observations

Overload or incomplete profile  620
Sigma cutoff   23
High resolution limit   17

Final Data Set

Scale factor 10.00
Number of 'full' reflections   2487
Number of 'partial' reflections  25482
Total number of integrated reflections  15575
Total number of unique reflections   4667
Data completeness   98.3%
Resolution range 20.40-0.77 A
Theta range 1.00°-27.48°
Average Intensity   290.4
Average Sigma(I)     8.4
Overall R-merge (linear)   0.061

Crystal Information

Collection Temperature   150 K
Crystal Size  0.28 x 0.18 x 0.18
Crystal Colour  pale yellow
Crystal Shape  block

SORTAV Absorption correction Summary

R(merge) on F2
Before
After
R
0.061 
0.049 
Rw
0.140 
0.136 
Max Transmission Factor
0.871E+00 
Min Transmission Factor
0.648E+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/