EPSRC National Crystallography Service
Data Collection Summary kccd1 (dellboy)


Summary report for Directory: diska/06skc0073

Report generated Nov 23, 2006; 11:05:01

Unit cell

2372 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)8.6426 +/- 0.0005
b (Angstrom)6.0715 +/- 0.0005
c (Angstrom)18.9467 +/- 0.0014
alpha (°) 90.000
beta (°)102.765 +/- 0.005
gamma (°) 90.000
Volume (A**3)969.63 +/- 0.12
Mosaicity (°)0.663 +/- 0.004

Data collection

Summary

Total number of images collected259
Total exposure time162.5 minutes
Data collection exposure time159.8 minutes
Data collection wall-clock time184.1 minutes

Experimental Conditions

Wavelength0.71073 A
Crystal to detector distance31.00 mm

Scans

TypeName# imagesTotal
Rotation
Per frame
Rotation
Exposure
per frame
Used in
scaling
data collections01f150285.0° phi1.900°38 secondsYes
data collections02f17 32.3° omega1.900°38 secondsYes
data collections03f25 47.5° omega1.900°38 secondsYes
data collections04f59112.1° omega1.900°38 secondsYes
Phi/Chii01f - i08f820 seconds

Scalepack Scaling

Deleted observations

Rejected  58
Zero sigma or profile test  21
Overload or incomplete profile 518
Sigma cutoff 109
High resolution limit  88

Final Data Set

Scale factor range8.28-11.12
Number of 'full' reflections  8485
Number of 'partial' reflections  7997
Total number of integrated reflections 15536
Total number of unique reflections  2417
Data completeness  99.9%
Resolution range7.00-0.77 A
Theta range2.91°-27.48°
Average Intensity   10.4
Average Sigma(I)    1.0
Overall R-merge (linear)  0.141

Sadabs Results

Parameter refinement on 6022 reflections reduced R(int) from 0.1331 to 0.0726

Before rejection, 15571 reflections total and 2447 unique

After rejection, 15359 reflections total and 2446 unique

Runs

  Run 2-theta  R(int)  Incid. factors  Diffr. factors    K     Total I>2sig(I)
    1    8.3  0.1424   0.768 - 1.195   0.959 - 1.271   1.202    9261    4246
    2   -7.8  0.1648   0.465 - 0.495   0.940 - 1.135   1.180     953     420
    3   -7.8  0.1166   0.676 - 0.738   0.939 - 1.152   1.184    1472     698
    4   -7.8  0.1653   0.818 - 0.940   0.939 - 1.191   1.235    3673    1591
Ratio of minimum to maximum apparent transmission: 0.738175

Metadata

  Group    Mike Hursthouse  
  Operator   Sam Callear  
  Sample Owner     
  Local Code   wp11 b4  
  Formula     
  Crystal Colour    Colourless  
  Crystal Habit    Plate  
  Crystal Size   0.27 x 0.14 x 0.03 (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    'graphite'
_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/