EPSRC National Crystallography Service

Data Collection Summary

Summary report for Directory: diska/01sot001r

Report generated Feb 13, 2001; 08:00:11

Unit cell

16139 reflections with 2.91°<theta<23.53° (resolution between 7.00A and 0.89A) were used for unit cell refinement
 
 
Symmetry used
in scalepack
c2
a (Angstrom) 37.5567 +/- 0.0014
b (Angstrom) 7.0816 +/- 0.0004
c (Angstrom) 22.4976 +/- 0.0012
alpha (°) 90.000
beta (°) 124.855 +/- 0.002
gamma (°) 90.000
Volume (A**3) 4910.0 +/- 0.4
Mosaicity (°) 0.895 +/- 0.004

Data collection

Summary

Total number of images collected 141
Total exposure time 357.8 minutes
Data collection exposure time 355.1 minutes
Data collection wall-clock time 376.6 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 133 266.0° phi 2.000° 160 seconds Yes

Scaling

Deleted observations

Zero sigma or profile test    1
Overload or incomplete profile   40
Sigma cutoff  111
High resolution limit   17

Final Data Set

Scale factor 10.00
Number of 'full' reflections   1755
Number of 'partial' reflections  32540
Total number of integrated reflections  19067
Total number of unique reflections   3979
Data completeness   99.6%
Resolution range 7.00-0.89 A
Theta range 2.91°-23.53°
Average Intensity    19.5
Average Sigma(I)     1.3
Overall R-merge (linear)   0.176

Crystal Information

Collection Temperature   150 K
Crystal Size  0.48 x 0.07 x 0.01
Crystal Colour  colourless
Crystal Shape  platy needle

SORTAV Absorption correction Summary

R(merge) on F2
Before
After
R
0.117 
0.103 
Rw
0.181 
0.169 
Max Transmission Factor
0.100E+01 
Min Transmission Factor
0.756E+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/