EPSRC National Crystallography Service
Data Collection Summary kccd2 (damien)


Summary report for Directory: diska/2008lsh028

Report generated Jul 06, 2008; 17:28:49

Unit cell

30778 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)9.7527 +/- 0.0013
b (Angstrom)5.1717 +/- 0.0008
c (Angstrom)17.811 +/- 0.002
alpha (°) 90.000
beta (°)89.971 +/- 0.008
gamma (°) 90.000
Volume (A**3)898.4 +/- 0.2
Mosaicity (°)2.896 +/- 0.006

Data collection

Summary

Total number of images collected250
Total exposure time123.7 minutes
Data collection exposure time122.3 minutes
Data collection wall-clock time132.7 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°30 secondsYes
data collections02f51102.0° omega2.000°30 secondsYes
data collections03f44 88.0° omega2.000°30 secondsYes
data collections04f48 96.0° omega2.000°30 secondsYes
data collections05f48 96.0° omega2.000°30 secondsYes
Phi/Chii01f - i08f810 seconds

Scalepack Scaling

Deleted observations

Rejected   1
Zero sigma or profile test  23
Overload or incomplete profile 854
Sigma cutoff 702
High resolution limit 187

Final Data Set

Scale factor10.00
Number of 'full' reflections     0
Number of 'partial' reflections 11045
Total number of integrated reflections  7544
Total number of unique reflections  2124
Data completeness  92.6%
Resolution range7.00-0.77 A
Theta range2.91°-27.48°
Average Intensity   84.2
Average Sigma(I)    4.1
Overall R-merge (linear)  0.222

Sadabs Results

Parameter refinement on 7262 reflections reduced R(int) from 0.2271 to 0.0851

Before rejection, 11391 reflections total and 2309 unique

After rejection, 9185 reflections total and 2274 unique

Runs

  Run 2-theta  R(int)  Incid. factors  Diffr. factors    K     Total I>2sig(I)
    1    4.2  0.0706   0.667 - 1.171   0.911 - 1.727   1.966    2080    1510
    2   10.2  0.0718   0.709 - 1.283   0.842 - 1.584   2.006    2089    1391
    3   10.2  0.0832   0.598 - 0.953   0.779 - 1.984   2.093    1596    1004
    4   10.2  0.0758   0.639 - 1.103   0.923 - 2.251   2.050    1930    1199
    5   10.2  0.1851   0.823 - 1.231   0.933 - 1.325   2.304    1490     559
Ratio of minimum to maximum apparent transmission: 0.346327

Metadata

  Group    Mike Hursthouse  
  Operator   Susanne Huth  
  Sample Owner     
  Local Code   MAA/CF3  
  Formula   C9 H8 F3 N1 O1  
  Crystal Colour    Colourless  
  Crystal Habit   Cut Lath  
  Crystal Size   0.24 x 0.08 x 0.02 (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/