EPSRC National Crystallography Service
Data Collection Summary kccd2 (damien)


Summary report for Directory: home/diska/2007src0079

Report generated Feb 09, 2007; 12:47:55

Unit cell

3349 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)15.7998 +/- 0.0007
b (Angstrom)5.17620 +/- 0.00010
c (Angstrom)16.9784 +/- 0.0006
alpha (°) 90.000
beta (°)99.7232 +/- 0.0017
gamma (°) 90.000
Volume (A**3)1368.60 +/- 0.08
Mosaicity (°)0.507 +/- 0.002

Data collection

Summary

Total number of images collected240
Total exposure time103.1 minutes
Data collection exposure time101.8 minutes
Data collection wall-clock time121.4 minutes

Experimental Conditions

Wavelength0.71073 A
Crystal to detector distance35.00 mm

Scans

TypeName# imagesTotal
Rotation
Per frame
Rotation
Exposure
per frame
Used in
scaling
data collections01f109218.0° phi2.000°26 secondsYes
data collections02f27 54.0° omega2.000°26 secondsYes
data collections03f51102.0° omega2.000°26 secondsYes
data collections04f45 90.0° omega2.000°26 secondsYes
Phi/Chii01f - i08f810 seconds

Scalepack Scaling

Deleted observations

Rejected 403
Overload or incomplete profile 488
Sigma cutoff 175
High resolution limit  62

Final Data Set

Scale factor range8.82-15.67
Number of 'full' reflections 10799
Number of 'partial' reflections  6145
Total number of integrated reflections 16124
Total number of unique reflections  3475
Data completeness  99.7%
Resolution range7.00-0.77 A
Theta range2.91°-27.48°
Average Intensity   55.7
Average Sigma(I)    1.6
Overall R-merge (linear)  0.063

Sadabs Results

Parameter refinement on 12451 reflections reduced R(int) from 0.1094 to 0.0531

Before rejection, 16402 reflections total and 3504 unique

After rejection, 14519 reflections total and 3494 unique

Runs

  Run 2-theta  R(int)  Incid. factors  Diffr. factors    K     Total I>2sig(I)
    1   15.1  0.0570   0.729 - 0.957   0.963 - 1.083   2.108    6895    5069
    2   14.6  0.0619   0.870 - 0.965   0.976 - 1.056   2.069    1631    1252
    3   14.6  0.0471   0.773 - 0.987   0.990 - 1.075   2.031    3172    2412
    4   14.6  0.0469   0.712 - 1.284   0.963 - 1.070   1.982    2821    2217
Ratio of minimum to maximum apparent transmission: 0.889747

Metadata

  Group    Service  
  Operator   Peter Horton  
  Sample Owner   Dr. E. McDonald  
  Local Code   JEHD-1-133  
  Formula   C13 H13 N1 O5 S1  
  Crystal Colour    Colourless  
  Crystal Habit    Needle  
  Crystal Size   0.41 x 0.06 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 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/