EPSRC National Crystallography Service
Data Collection Summary kccd2 (damien)


Summary report for Directory: diska/2008src1000

Report generated Oct 01, 2008; 14:24:50

Unit cell

10070 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)12.4636 +/- 0.0008
b (Angstrom)7.3364 +/- 0.0008
c (Angstrom)15.1611 +/- 0.0016
alpha (°) 90.000
beta (°)91.529 +/- 0.006
gamma (°) 90.000
Volume (A**3)1385.8 +/- 0.2
Mosaicity (°)0.646 +/- 0.004

Data collection

Summary

Total number of images collected227
Total exposure time134.2 minutes
Data collection exposure time132.5 minutes
Data collection wall-clock time141.3 minutes

Experimental Conditions

Wavelength0.71073 A
Crystal to detector distance34.00 mm

Scans

TypeName# imagesTotal
Rotation
Per frame
Rotation
Exposure
per frame
Used in
scaling
data collections01f178356.0° phi2.000°36 secondsYes
data collections02f15 30.0° omega2.000°36 secondsYes
data collections03f13 26.0° omega2.000°36 secondsYes
data collections04f13 26.0° omega2.000°36 secondsYes
Phi/Chii01f - i08f812 seconds

Scalepack Scaling

Deleted observations

Rejected   3
Zero sigma or profile test 347
Overload or incomplete profile 424
Sigma cutoff 684
High resolution limit 279

Final Data Set

Scale factor10.00
Number of 'full' reflections  9222
Number of 'partial' reflections  7686
Total number of integrated reflections 15180
Total number of unique reflections  3348
Data completeness  99.1%
Resolution range7.00-0.77 A
Theta range2.91°-27.48°
Average Intensity    8.2
Average Sigma(I)    1.0
Overall R-merge (linear)  0.424

Sadabs Results

Parameter refinement on 6263 reflections reduced R(int) from 0.3658 to 0.0896

Before rejection, 15586 reflections total and 3424 unique

After rejection, 12925 reflections total and 3403 unique

Runs

  Run 2-theta  R(int)  Incid. factors  Diffr. factors    K     Total I>2sig(I)
    1   14.3  0.1831   0.511 - 1.536   0.922 - 1.446   2.051   10797    3974
    2   10.3  0.1793   0.465 - 0.562   0.938 - 1.119   2.064     807     279
    3   13.2  0.1975   0.193 - 0.231   0.922 - 1.470   2.039     643     244
    4   13.8  0.1636   0.644 - 0.747   0.953 - 1.238   2.102     678     199
Ratio of minimum to maximum apparent transmission: 0.627101

Metadata

  Group    Service  
  Operator     
  Sample Owner   Dr S Aldridge  
  Local Code   BF_IPr  
  Formula     
  Crystal Colour    Colourless  
  Crystal Habit    Block  
  Crystal Size   0.2 x 0.2 x 0.2 (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 2007/2 (Sheldrick, G.M., 2007)'

_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 APEX II CCD camera on \k-goniostat'
_diffrn_measurement_method          '\f & \w scans'
_diffrn_detector_area_resol_mean   '4096x4096pixels / 62x62mm'

_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. (2007). SADABS. Version 2007/2. 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/