EPSRC National Crystallography Service
Data Collection Summary kccd2 (damien)


Summary report for Directory: home/diska/2005slh1121a

Report generated Sep 15, 2005; 09:33:21

Unit cell

7368 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)11.9843 +/- 0.0003
b (Angstrom)17.4673 +/- 0.0003
c (Angstrom)15.3020 +/- 0.0004
alpha (°) 90.000
beta (°)98.8567 +/- 0.0010
gamma (°) 90.000
Volume (A**3)3165.03 +/- 0.13
Mosaicity (°)0.4940 +/- 0.0010

Data collection

Summary

Total number of images collected202
Total exposure time66.7 minutes
Data collection exposure time65.4 minutes
Data collection wall-clock time81.0 minutes

Experimental Conditions

Wavelength0.71073 A
Crystal to detector distance30.00 mm

Scans

TypeName# imagesTotal
Rotation
Per frame
Rotation
Exposure
per frame
Used in
scaling
data collections01f156312.0° phi2.000°20 secondsYes
data collections02f16 32.0° omega2.000°20 secondsYes
data collections03f22 44.0° omega2.000°20 secondsYes
Phi/Chii01f - i08f810 seconds

Scalepack Scaling

Deleted observations

Rejected 263
Zero sigma or profile test   3
Overload or incomplete profile1104
Sigma cutoff  14
High resolution limit  21

Final Data Set

Scale factor range5.54-10.50
Number of 'full' reflections 29177
Number of 'partial' reflections 16187
Total number of integrated reflections 44037
Total number of unique reflections  7501
Data completeness  99.9%
Resolution range7.00-0.77 A
Theta range2.91°-27.48°
Average Intensity   44.8
Average Sigma(I)    1.7
Overall R-merge (linear)  0.066

Sadabs Results

Parameter refinement on 30829 reflections reduced R(int) from 0.0741 to 0.0549

Before rejection, 43272 reflections total and 7513 unique

After rejection, 42570 reflections total and 7512 unique

Runs

  Run 2-theta  R(int)  Incid. factors  Diffr. factors    K     Total I>2sig(I)
    1    7.4  0.0596   0.865 - 1.034   0.954 - 1.140   1.370   34658   26146
    2   -6.8  0.0835   0.929 - 1.017   0.976 - 1.133   1.411    3252    2210
    3   -6.8  0.0832   0.614 - 0.795   0.978 - 1.141   1.446    4660    3235
Ratio of minimum to maximum apparent transmission: 0.836022

Metadata

  Group    Personal  
  Operator   Mike Hursthouse  
  Sample Owner   slh/cag  
  Local Code   cag154  
  Formula     
  Crystal Colour    Colourless  
  Crystal Habit    Block  
  Crystal Size   0.1 x 0.08 x 0.07 (mm3) 
  Temperature   120(K) 
  Generator   50 (kV)   85 (mA) 
  Primary Solvent     
  Other Solvents     

File Explanations

SampleCode.zip
      SampleCode.hkl - data corrected using  SADABS
      SampleCode_merge_none.hkl - equivalents and friedels kept separate  (See "Final Data Set" table in this report)
      SampleCode.p4p - skeleton p4p file for use with XPREP
      SampleCode.htm - this summary file


Southampton CIF entry fields

_exptl_absorpt_process_details       'SADABS V2.10 (Sheldrick, G.M., 2003)'

_diffrn_ambient_temperature           120(2)
_diffrn_radiation_wavelength           0.71073
_diffrn_radiation_type                      MoK\a
_diffrn_radiation_source                  'Bruker-Nonius FR591 rotating anode'
_diffrn_radiation_monochromator    '10cm confocal mirrors'
_diffrn_measurement_device_type  'Bruker-Nonius 95mm CCD camera on \k-goniostat'
_diffrn_measurement_method          '\f & \w scans'
_diffrn_detector_area_resol_mean   9.091

_computing_data_collection        
'COLLECT (Hooft, R.W.W., 1998)'
_computing_cell_refinement        
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, R.W.W., 1998)'
#Although determined using DirAx, the cell is refined in the HKL
#package during data reduction
_computing_data_reduction         
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, R.W.W., 1998)' 

Software References

Unit Cell Determination using DirAx:
Duisenberg AJM. Indexing in Single-Crystal Diffractometry with an Obstinate List of Reflections. Journal of Applied Crystallography 1992; 25: 92-96.
Duisenberg AJM, Hooft RWW, Schreurs AMM, Kroon J. Accurate cells from area-detector images. Journal of Applied Crystallography 2000; 33: 893-898.

Diffractometer control and strategy calculation using COLLECT:
Hooft RWW. COLLECT data collection software, Nonius B.V., 1998.

Standard Data Reduction using HKL(Denzo & Scalepack):
Otwinowski Z, Minor W. Processing of X-ray diffraction data collected in oscillation mode. Macromolecular Crystallography, Pt A. 1997; 276: 307-326.

Absorption Correction
Sheldrick, G. M. (2003). SADABS. Version 2.10. Bruker AXS Inc., Madison, Wisconsin, USA.

Non-Standard Data Reduction using EvalCCD:
Duisenberg AJM, Kroon-Batenburg LMJ, Schreurs AMM. An intensity evaluation method: EVAL-14. Journal of Applied Crystallography 2003; 36: 220-229.

For more information visit the service web site at: http://www.soton.ac.uk/~xservice/