EPSRC National Crystallography Service
Data Collection Summary kccd2 (damien)


Summary report for Directory: home/diska/04src0995

Report generated Nov 10, 2004; 13:24:47

Unit cell

3543 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)10.8812 +/- 0.0003
b (Angstrom)10.9285 +/- 0.0002
c (Angstrom)13.5863 +/- 0.0004
alpha (°) 90.000
beta (°)111.8825 +/- 0.0013
gamma (°) 90.000
Volume (A**3)1499.21 +/- 0.07
Mosaicity (°)0.510 +/- 0.002

Data collection

Summary

Total number of images collected198
Total exposure time52.7 minutes
Data collection exposure time51.3 minutes
Data collection wall-clock time66.7 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 collections01f101202.0° phi2.000°16 secondsYes
data collections02f16 32.0° omega2.000°16 secondsYes
data collections03f15 30.0° omega2.000°16 secondsYes
data collections04f58116.0° omega2.000°16 secondsYes
Phi/Chii01f - i08f810 seconds

Scalepack Scaling

Deleted observations

Rejected 112
Overload or incomplete profile 742
Sigma cutoff  16
High resolution limit   1

Final Data Set

Scale factor range9.89-14.14
Number of 'full' reflections 11069
Number of 'partial' reflections  6301
Total number of integrated reflections 16632
Total number of unique reflections  3627
Data completeness  99.1%
Resolution range7.00-0.77 A
Theta range2.91°-27.48°
Average Intensity  237.9
Average Sigma(I)    5.3
Overall R-merge (linear)  0.034

Sadabs Results

Parameter refinement on 13122 reflections reduced R(int) from 0.1155 to 0.0327

Before rejection, 16127 reflections total and 3634 unique

After rejection, 15874 reflections total and 3629 unique

Runs

  Run 2-theta  R(int)  Incid. factors  Diffr. factors    K     Total I>2sig(I)
    1   11.8  0.0325   0.775 - 1.019   0.920 - 1.109   1.440    8494    7101
    2  -11.2  0.0320   0.812 - 0.885   0.942 - 1.056   1.505    1244    1065
    3  -11.2  0.0335   0.514 - 0.576   0.972 - 1.078   1.468    1143     961
    4  -11.2  0.0344   1.049 - 1.443   0.921 - 1.134   1.480    4993    4105
Ratio of minimum to maximum apparent transmission: 0.811549

Metadata

  Group    Service  
  Operator   Peter Horton  
  Sample Owner   Dr. I. R. Butler  
  Local Code   9-212  
  Formula   C17 H22 O2  
  Crystal Colour    Colourless  
  Crystal Habit    Block  
  Crystal Size   0.26 x 0.22 x 0.18 (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/