EPSRC National Crystallography Service
Data Collection Summary kccd2 (damien)


Summary report for Directory: home/diska/2007may0003

Report generated Jun 08, 2007; 08:16:33

Unit cell

1916 reflections with 2.91°<theta<27.48° (resolution between 7.00A and 0.77A) were used for unit cell refinement

Symmetry used
in scalepack
c2
a (Angstrom)20.4195 +/- 0.0005
b (Angstrom)9.0682 +/- 0.0004
c (Angstrom)13.7138 +/- 0.0003
alpha (°) 90.000
beta (°)132.0690 +/- 0.0014
gamma (°) 90.000
Volume (A**3)1885.06 +/- 0.11
Mosaicity (°)0.461 +/- 0.002

Data collection

Summary

Total number of images collected265
Total exposure time262.4 minutes
Data collection exposure time258.3 minutes
Data collection wall-clock time268.1 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 collections01f88 88.0° omega1.000°60 secondsYes
data collections02f102102.0° omega1.000°60 secondsYes
data collections03f67 67.0° omega1.000°60 secondsYes
Phi/Chii01f - i08f830 seconds

Scalepack Scaling

Deleted observations

Rejected 123
Overload or incomplete profile 296
Sigma cutoff 108
High resolution limit   8

Final Data Set

Scale factor range9.95-10.86
Number of 'full' reflections  3052
Number of 'partial' reflections  5051
Total number of integrated reflections  7627
Total number of unique reflections  2252
Data completeness  97.7%
Resolution range7.00-0.77 A
Theta range2.91°-27.48°
Average Intensity  131.5
Average Sigma(I)    3.8
Overall R-merge (linear)  0.043

Sadabs Results

Parameter refinement on 5628 reflections reduced R(int) from 0.0508 to 0.0333

Before rejection, 7766 reflections total and 2278 unique

After rejection, 7121 reflections total and 2257 unique

Runs

  Run 2-theta  R(int)  Incid. factors  Diffr. factors    K     Total I>2sig(I)
    1    4.0  0.0360   0.898 - 1.054   0.952 - 1.089   2.207    2463    1898
    2   10.2  0.0351   0.898 - 1.108   0.876 - 1.209   2.209    2830    2097
    3   10.2  0.0337   0.768 - 0.878   0.949 - 1.104   2.132    1828    1321
Ratio of minimum to maximum apparent transmission: 0.724828

Metadata

  Group    Mike Hursthouse  
  Operator   Susanne Huth  
  Sample Owner     
  Local Code   cc47501  
  Formula     
  Crystal Colour    Light Yellow  
  Crystal Habit    Shard  
  Crystal Size   0.08 x 0.04 x 0.1 (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/