EPSRC National Crystallography Service
Data Collection Summary kccd1 (dellboy)


Summary report for Directory: diska/2005src1568

Report generated Dec 01, 2005; 13:23:16

Unit cell

9805 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)11.5026 +/- 0.0003
b (Angstrom)13.7030 +/- 0.0002
c (Angstrom)27.1789 +/- 0.0007
alpha (°) 90.000
beta (°)100.9996 +/- 0.0008
gamma (°) 90.000
Volume (A**3)4205.24 +/- 0.17
Mosaicity (°)0.5270 +/- 0.0010

Data collection

Summary

Total number of images collected538
Total exposure time91.3 minutes
Data collection exposure time90.2 minutes
Data collection wall-clock time138.8 minutes

Experimental Conditions

Wavelength0.71073 A
Crystal to detector distance40.00 mm

Scans

TypeName# imagesTotal
Rotation
Per frame
Rotation
Exposure
per frame
Used in
scaling
data collections01f308308.0° phi1.000°10 secondsYes
data collections02f34 34.0° omega1.000°10 secondsYes
data collections03f64 64.0° omega1.000°10 secondsYes
data collections04f124124.0° omega1.000°10 secondsYes
Phi/Chii01f - i08f88 seconds

Scalepack Scaling

Deleted observations

Rejected 233
Zero sigma or profile test   7
Overload or incomplete profile1592
Sigma cutoff  48
High resolution limit 105

Final Data Set

Scale factor range8.65-11.26
Number of 'full' reflections 18357
Number of 'partial' reflections 37622
Total number of integrated reflections 51477
Total number of unique reflections 10001
Data completeness  99.8%
Resolution range7.00-0.77 A
Theta range2.91°-27.48°
Average Intensity   21.3
Average Sigma(I)    1.4
Overall R-merge (linear)  0.066

Sadabs Results

Parameter refinement on 28216 reflections reduced R(int) from 0.0854 to 0.0462

Before rejection, 54460 reflections total and 10045 unique

After rejection, 53933 reflections total and 10041 unique

Runs

  Run 2-theta  R(int)  Incid. factors  Diffr. factors    K     Total I>2sig(I)
    1   15.6  0.0661   0.907 - 1.140   0.887 - 1.089   1.213   31226   17856
    2  -15.0  0.0629   0.668 - 0.710   0.888 - 1.187   1.259    3305    1937
    3  -15.0  0.0715   0.684 - 0.773   0.920 - 1.062   1.258    6446    3773
    4  -15.0  0.0701   0.899 - 1.082   0.916 - 1.094   1.209   12956    7280
Ratio of minimum to maximum apparent transmission: 0.746863

Metadata

  Group    Service  
  Operator   Simon Coles  
  Sample Owner   Greeves  
  Local Code   384/1  
  Formula   C24H32O  
  Crystal Colour    Colourless  
  Crystal Habit    Block  
  Crystal Size   0.4 x 0.4 x 0.3 (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/