EPSRC National Crystallography Service
Data Collection Summary kccd2 (damien)


Summary report for Directory: diska/2009src0154

Report generated Feb 13, 2009; 15:09:26

Unit cell

21471 reflections with 2.91°<theta<27.48° (resolution between 7.00A and 0.77A) were used for unit cell refinement

Symmetry used
in scalepack
p222
a (Angstrom)7.3420 +/- 0.0002
b (Angstrom)17.4825 +/- 0.0005
c (Angstrom)23.1152 +/- 0.0007
alpha (°) 90.000
beta (°) 90.000
gamma (°) 90.000
Volume (A**3)2966.99 +/- 0.15
Mosaicity (°)0.536 +/- 0.002

Data collection

Summary

Total number of images collected248
Total exposure time92.4 minutes
Data collection exposure time91.3 minutes
Data collection wall-clock time100.5 minutes

Experimental Conditions

Wavelength0.71073 A
Crystal to detector distance34.00 mm

Scans

TypeName# imagesTotal
Rotation
Per frame
Rotation
Exposure
per frame
Used in
scaling
data collections01f97145.5° phi1.500°22 secondsYes
data collections02f73109.5° omega1.500°22 secondsYes
data collections03f70105.0° omega1.500°22 secondsYes
Phi/Chii01f - i08f88 seconds

Scalepack Scaling

Deleted observations

Rejected   2
Zero sigma or profile test  16
Overload or incomplete profile 758
Sigma cutoff 644
High resolution limit  18

Final Data Set

Scale factor10.00
Number of 'full' reflections 15232
Number of 'partial' reflections 14756
Total number of integrated reflections 27624
Total number of unique reflections  3881
Data completeness  99.9%
Resolution range7.00-0.77 A
Theta range2.91°-27.48°
Average Intensity   14.0
Average Sigma(I)    0.7
Overall R-merge (linear)  0.255

Sadabs Results

Parameter refinement on 15900 reflections reduced R(int) from 0.1898 to 0.0863

Before rejection, 28561 reflections total and 3892 unique

After rejection, 24037 reflections total and 3889 unique

Runs

  Run 2-theta  R(int)  Incid. factors  Diffr. factors    K     Total I>2sig(I)
    1   14.3  0.1299   0.655 - 0.941   0.985 - 1.130   2.067    9667    4755
    2   13.8  0.1127   0.595 - 1.444   0.977 - 1.073   1.999    7294    3857
    3   13.8  0.1171   0.577 - 0.875   0.974 - 1.132   2.041    7076    3499
Ratio of minimum to maximum apparent transmission: 0.859938

Metadata

  Group    Service  
  Operator   Sam Callear  
  Sample Owner   Dr J Spencer  
  Local Code   JS 153  
  Formula   C20H17FeNO  
  Crystal Colour    Red  
  Crystal Habit    Needle  
  Crystal Size   0.26 x 0.02 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 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/