EPSRC National Crystallography Service
Data Collection Summary kccd2 (damien)


Summary report for Directory: home/diska/06skc0028

Report generated Jul 23, 2006; 08:55:20

Unit cell

8890 reflections with 2.91°<theta<27.48° (resolution between 7.00A and 0.77A) were used for unit cell refinement

Symmetry used
in scalepack
p1
a (Angstrom)7.3520 +/- 0.0004
b (Angstrom)14.0377 +/- 0.0008
c (Angstrom)20.5777 +/- 0.0012
alpha (°) 90.036
beta (°) 89.812
gamma (°) 89.911
Volume (A**3)2123.7 +/- 0.2
Mosaicity (°)1.232 +/- 0.003

Data collection

Summary

Total number of images collected439
Total exposure time117.8 minutes
Data collection exposure time116.4 minutes
Data collection wall-clock time151.6 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 collections01f226361.6° phi1.600°16 secondsYes
data collections02f20 32.0° omega1.600°16 secondsYes
data collections03f20 32.0° omega1.600°16 secondsYes
data collections04f29 46.4° omega1.600°16 secondsYes
data collections05f68108.8° omega1.600°16 secondsYes
data collections06f68108.8° omega1.600°16 secondsYes
Phi/Chii01f - i08f810 seconds

Scalepack Scaling

Deleted observations

Rejected 505
Zero sigma or profile test  52
Overload or incomplete profile2298
Sigma cutoff  62
High resolution limit 313

Final Data Set

Scale factor range6.92-12.19
Number of 'full' reflections  5194
Number of 'partial' reflections 46206
Total number of integrated reflections 44117
Total number of unique reflections  9494
Data completeness  97.7%
Resolution range7.00-0.77 A
Theta range2.91°-27.48°
Average Intensity    9.1
Average Sigma(I)    1.1
Overall R-merge (linear)  0.140

Sadabs Results

Parameter refinement on 17324 reflections reduced R(int) from 0.1353 to 0.0869

Before rejection, 48640 reflections total and 9778 unique

After rejection, 47818 reflections total and 9775 unique

Runs

  Run 2-theta  R(int)  Incid. factors  Diffr. factors    K     Total I>2sig(I)
    1    8.3  0.1672   0.842 - 1.192   0.946 - 1.493   1.302   24583    9674
    2   -7.8  0.1414   0.924 - 1.023   0.972 - 1.359   1.223    2105     915
    3   -7.8  0.1711   1.035 - 1.227   0.935 - 1.225   1.294    2099     825
    4   -7.8  0.1448   0.976 - 1.207   0.935 - 1.325   1.273    3247    1202
    5   -7.8  0.1405   0.864 - 0.987   0.935 - 1.461   1.232    7867    3584
    6   -7.8  0.1535   0.358 - 0.414   0.958 - 1.270   1.216    7917    3714
Ratio of minimum to maximum apparent transmission: 0.626295

Metadata

  Group    Service  
  Operator     
  Sample Owner     
  Local Code     
  Formula     
  Crystal Colour    Colourless  
  Crystal Habit    Block  
  Crystal Size   0.2 x 0.2 x 0.2 (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/