EPSRC National Crystallography Service
Data Collection Summary kccd2 (damien)


Summary report for Directory: home/diska/07skc0003

Report generated Feb 02, 2007; 20:04:36

Unit cell

815 reflections with 2.91°<theta<27.48° (resolution between 7.00A and 0.77A) were used for unit cell refinement

Symmetry used
in scalepack
c222
a (Angstrom)6.8153 +/- 0.0006
b (Angstrom)12.7523 +/- 0.0012
c (Angstrom)14.1895 +/- 0.0011
alpha (°) 90.000
beta (°) 90.000
gamma (°) 90.000
Volume (A**3)1233.22 +/- 0.19
Mosaicity (°)1.049 +/- 0.005

Data collection

Summary

Total number of images collected153
Total exposure time223.6 minutes
Data collection exposure time218.3 minutes
Data collection wall-clock time248.0 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 collections01f67134.0° phi2.000°90 secondsYes
data collections02f35 70.0° omega2.000°90 secondsYes
data collections03f43 86.0° omega2.000°90 secondsYes
Phi/Chii01f - i08f840 seconds

Scalepack Scaling

Deleted observations

Rejected 168
Overload or incomplete profile 180
Sigma cutoff 133
High resolution limit  24

Final Data Set

Scale factor range7.38-10.02
Number of 'full' reflections  1718
Number of 'partial' reflections  3951
Total number of integrated reflections  5146
Total number of unique reflections   833
Data completeness  99.8%
Resolution range7.00-0.77 A
Theta range2.91°-27.48°
Average Intensity   95.2
Average Sigma(I)    2.5
Overall R-merge (linear)  0.082

Sadabs Results

Parameter refinement on 3675 reflections reduced R(int) from 0.1023 to 0.0592

Before rejection, 5343 reflections total and 840 unique

After rejection, 4648 reflections total and 836 unique

Runs

  Run 2-theta  R(int)  Incid. factors  Diffr. factors    K     Total I>2sig(I)
    1   11.7  0.0588   1.302 - 1.492   0.916 - 1.174   2.019    2133    1431
    2   11.1  0.0749   0.363 - 0.456   0.886 - 1.203   2.132    1097     710
    3    6.4  0.0634   1.114 - 1.309   0.956 - 1.088   2.072    1418     937
Ratio of minimum to maximum apparent transmission: 0.736264

Metadata

  Group    Mike Hursthouse  
  Operator   Sam Callear  
  Sample Owner     
  Local Code   wp7 h6  
  Formula   C10H16O5N1  
  Crystal Colour    Colourless  
  Crystal Habit    Plate  
  Crystal Size   0.15 x 0.07 x 0.01 (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/