EPSRC National Crystallography Service
Data Collection Summary kccd2 (damien)


Summary report for Directory: diska/2008lsh171

Report generated Jan 17, 2009; 15:15:44

Unit cell

20804 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)11.1083 +/- 0.0006
b (Angstrom)4.8283 +/- 0.0003
c (Angstrom)15.2681 +/- 0.0007
alpha (°) 90.000
beta (°)99.170 +/- 0.003
gamma (°) 90.000
Volume (A**3)808.43 +/- 0.08
Mosaicity (°)1.418 +/- 0.003

Data collection

Summary

Total number of images collected252
Total exposure time84.0 minutes
Data collection exposure time82.6 minutes
Data collection wall-clock time93.2 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 collections01f51102.0° omega2.000°20 secondsYes
data collections02f45 90.0° omega2.000°20 secondsYes
data collections03f49 98.0° omega2.000°20 secondsYes
data collections04f48 96.0° omega2.000°20 secondsYes
data collections05f51102.0° omega2.000°20 secondsYes
Phi/Chii01f - i08f810 seconds

Scalepack Scaling

Deleted observations

Rejected   2
Zero sigma or profile test   1
Overload or incomplete profile 660
Sigma cutoff 291
High resolution limit  42

Final Data Set

Scale factor10.00
Number of 'full' reflections  1942
Number of 'partial' reflections 11311
Total number of integrated reflections 10987
Total number of unique reflections  2056
Data completeness  99.2%
Resolution range7.00-0.77 A
Theta range2.91°-27.48°
Average Intensity  308.1
Average Sigma(I)    5.9
Overall R-merge (linear)  0.205

Sadabs Results

Parameter refinement on 9619 reflections reduced R(int) from 0.1432 to 0.0422

Before rejection, 12306 reflections total and 2074 unique

After rejection, 11046 reflections total and 2067 unique

Runs

  Run 2-theta  R(int)  Incid. factors  Diffr. factors    K     Total I>2sig(I)
    1    2.7  0.0592   0.857 - 1.279   0.903 - 1.097   2.244    2300    1686
    2    7.5  0.0341   0.739 - 1.190   0.932 - 1.061   2.055    2079    1653
    3   10.2  0.0373   0.518 - 0.804   0.905 - 1.113   2.379    2214    1738
    4   10.2  0.0412   0.845 - 1.313   0.954 - 1.168   2.393    2144    1673
    5   10.2  0.0389   0.824 - 1.036   0.943 - 1.046   2.052    2309    1784
Ratio of minimum to maximum apparent transmission: 0.773140

Metadata

  Group    Mike Hursthouse  
  Operator   Susanne Huth  
  Sample Owner     
  Local Code   OAA/Me  
  Formula   C9 H11 N1 O1  
  Crystal Colour    Colourless  
  Crystal Habit   Cut Fragment  
  Crystal Size   0.21 x 0.1 x 0.06 (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/