EPSRC National Crystallography Service
Data Collection Summary kccd2 (damien)


Summary report for Directory: home/diska/2005src1222

Report generated Sep 26, 2005; 13:10:09

Unit cell

3337 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)7.6359 +/- 0.0003
b (Angstrom)9.1905 +/- 0.0004
c (Angstrom)12.3287 +/- 0.0005
alpha (°)102.330 +/- 0.002
beta (°)105.045 +/- 0.003
gamma (°)108.500 +/- 0.002
Volume (A**3)749.86 +/- 0.06
Mosaicity (°)0.673 +/- 0.002

Data collection

Summary

Total number of images collected300
Total exposure time149.1 minutes
Data collection exposure time147.1 minutes
Data collection wall-clock time202.5 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 collections01f181362.0° phi2.000°30 secondsYes
data collections02f16 32.0° omega2.000°30 secondsYes
data collections03f16 32.0° omega2.000°30 secondsYes
data collections04f55110.0° omega2.000°30 secondsYes
data collections05f24 48.0° omega2.000°30 secondsYes
Phi/Chii01f - i08f815 seconds

Scalepack Scaling

Deleted observations

Rejected 164
Overload or incomplete profile 516
Sigma cutoff   4
Low resolution limit  22
High resolution limit   5

Final Data Set

Scale factor range3.68-11.49
Number of 'full' reflections  8231
Number of 'partial' reflections  7383
Total number of integrated reflections 15006
Total number of unique reflections  3414
Data completeness  99.7%
Resolution range7.00-0.77 A
Theta range2.91°-27.48°
Average Intensity   87.6
Average Sigma(I)    2.9
Overall R-merge (linear)  0.070

Sadabs Results

Parameter refinement on 10914 reflections reduced R(int) from 0.1548 to 0.0533

Before rejection, 14685 reflections total and 3416 unique

After rejection, 14429 reflections total and 3416 unique

Runs

  Run 2-theta  R(int)  Incid. factors  Diffr. factors    K     Total I>2sig(I)
    1    8.3  0.0502   0.771 - 1.152   0.948 - 1.136   1.327    9055    7307
    2   -7.8  0.0728   0.719 - 0.879   0.954 - 1.060   1.402     714     524
    3   -7.8  0.0827   0.374 - 0.470   0.963 - 1.103   1.463     728     491
    4   -7.8  0.0702   0.611 - 1.211   0.952 - 1.128   1.520    2790    2065
    5   -7.8  0.0612   0.774 - 0.986   0.952 - 1.109   1.354    1142     864
Ratio of minimum to maximum apparent transmission: 0.834545

Metadata

  Group    Service  
  Operator   Peter Horton  
  Sample Owner   Dr. A. Dervisi  
  Local Code   MIA69  
  Formula   C28 H38 N4 O8 S2  
  Crystal Colour    Colourless  
  Crystal Habit   Cut Plate  
  Crystal Size   0.18 x 0.12 x 0.04 (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/