EPSRC National Crystallography Service
Data Collection Summary kccd2 (damien)


Summary report for Directory: home/diska/2007src0258r

Report generated Apr 20, 2007; 13:10:51

Unit cell

2554 reflections with 2.91°<theta<27.48° (resolution between 7.00A and 0.77A) were used for unit cell refinement

Symmetry used
in scalepack
p4
a (Angstrom)11.4892 +/- 0.0002
b (Angstrom)11.4892 +/- 0.0002
c (Angstrom)16.7645 +/- 0.0003
alpha (°) 90.000
beta (°) 90.000
gamma (°) 90.000
Volume (A**3)2212.94 +/- 0.07
Mosaicity (°)0.6220 +/- 0.0010

Data collection

Summary

Total number of images collected158
Total exposure time31.5 minutes
Data collection exposure time30.8 minutes
Data collection wall-clock time39.0 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°12 secondsYes
data collections02f48 96.0° omega2.000°12 secondsYes
data collections03f51102.0° omega2.000°12 secondsYes
Phi/Chii01f - i08f85 seconds

Scalepack Scaling

Deleted observations

Rejected 365
Zero sigma or profile test   2
Overload or incomplete profile1114
Sigma cutoff  72
High resolution limit   1

Final Data Set

Scale factor range7.86-11.38
Number of 'full' reflections 12503
Number of 'partial' reflections 10080
Total number of integrated reflections 21404
Total number of unique reflections  2623
Data completeness  99.8%
Resolution range7.00-0.77 A
Theta range2.91°-27.48°
Average Intensity  216.1
Average Sigma(I)    3.4
Overall R-merge (linear)  0.038

Sadabs Results

Parameter refinement on 20455 reflections reduced R(int) from 0.0727 to 0.0376

Before rejection, 21177 reflections total and 2625 unique

After rejection, 19890 reflections total and 2623 unique

Runs

  Run 2-theta  R(int)  Incid. factors  Diffr. factors    K     Total I>2sig(I)
    1    4.3  0.0354   0.768 - 0.896   0.986 - 1.116   2.419    6836    6616
    2    2.4  0.0366   0.707 - 1.093   0.958 - 1.114   2.398    6455    6214
    3   10.2  0.0363   0.831 - 1.076   0.958 - 1.052   2.485    6599    6303
Ratio of minimum to maximum apparent transmission: 0.858464

Metadata

  Group    Service  
  Operator   Simon Coles  
  Sample Owner   Davies  
  Local Code   306-725-1  
  Formula   C18H24N5O2P3S2  
  Crystal Colour    Colourless  
  Crystal Habit    Plate  
  Crystal Size   0.14 x 0.1 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/