EPSRC National Crystallography Service
Data Collection Summary kccd2 (damien)


Summary report for Directory: diska/2009src0117

Report generated Feb 17, 2009; 13:25:30

Unit cell

42540 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)20.2114 +/- 0.0004
b (Angstrom)10.1604 +/- 0.0002
c (Angstrom)29.6827 +/- 0.0006
alpha (°) 90.000
beta (°)91.3365 +/- 0.0008
gamma (°) 90.000
Volume (A**3)6093.9 +/- 0.2
Mosaicity (°)0.4690 +/- 0.0010

Data collection

Summary

Total number of images collected388
Total exposure time79.1 minutes
Data collection exposure time78.0 minutes
Data collection wall-clock time94.8 minutes

Experimental Conditions

Wavelength0.71073 A
Crystal to detector distance49.00 mm

Scans

TypeName# imagesTotal
Rotation
Per frame
Rotation
Exposure
per frame
Used in
scaling
data collections01f199298.5° phi1.500°12 secondsYes
data collections02f90135.0° omega1.500°12 secondsYes
data collections03f91136.5° omega1.500°12 secondsYes
Phi/Chii01f - i08f88 seconds

Scalepack Scaling

Deleted observations

Rejected   1
Zero sigma or profile test  11
Overload or incomplete profile1106
Sigma cutoff 466
High resolution limit 173

Final Data Set

Scale factor10.00
Number of 'full' reflections 38120
Number of 'partial' reflections 25071
Total number of integrated reflections 58817
Total number of unique reflections 14655
Data completeness  99.9%
Resolution range7.00-0.77 A
Theta range2.91°-27.48°
Average Intensity   67.6
Average Sigma(I)    1.9
Overall R-merge (linear)  0.121

Sadabs Results

Parameter refinement on 49041 reflections reduced R(int) from 0.1282 to 0.0578

Before rejection, 61597 reflections total and 14737 unique

After rejection, 53981 reflections total and 14692 unique

Runs

  Run 2-theta  R(int)  Incid. factors  Diffr. factors    K     Total I>2sig(I)
    1   24.2  0.0576   0.752 - 1.138   0.975 - 1.067   2.105   27692   21892
    2   23.6  0.0514   0.833 - 1.218   0.975 - 1.057   2.050   12611    9891
    3   23.6  0.0512   0.661 - 0.856   0.977 - 1.077   2.058   13678   10949
Ratio of minimum to maximum apparent transmission: 0.905943

Metadata

  Group    Service  
  Operator   Peter Horton  
  Sample Owner   Dr MA Beckett  
  Local Code   MAB/JT/22  
  Formula   C36 H30 B5 N1 O10 P2  
  Crystal Colour    Colourless  
  Crystal Habit    Slab  
  Crystal Size   0.18 x 0.1 x 0.05 (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/