EPSRC National Crystallography Service
Data Collection Summary kccd2 (damien)


Summary report for Directory: diska/2009src0112

Report generated Feb 12, 2009; 13:06:48

Unit cell

19693 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)10.5278 +/- 0.0005
b (Angstrom)5.3937 +/- 0.0002
c (Angstrom)27.1476 +/- 0.0014
alpha (°) 90.000
beta (°)94.292 +/- 0.002
gamma (°) 90.000
Volume (A**3)1537.22 +/- 0.12
Mosaicity (°)0.800 +/- 0.002

Data collection

Summary

Total number of images collected413
Total exposure time104.0 minutes
Data collection exposure time103.4 minutes
Data collection wall-clock time122.0 minutes

Experimental Conditions

Wavelength0.71073 A
Crystal to detector distance44.00 mm

Scans

TypeName# imagesTotal
Rotation
Per frame
Rotation
Exposure
per frame
Used in
scaling
data collections01f181271.5° phi1.500°15 secondsYes
data collections02f85127.5° omega1.500°15 secondsYes
data collections03f58 87.0° omega1.500°15 secondsYes
data collections04f81121.5° omega1.500°15 secondsYes
Phi/Chii01f - i08f84 seconds

Scalepack Scaling

Deleted observations

Rejected   3
Zero sigma or profile test  15
Overload or incomplete profile 508
Sigma cutoff 284
High resolution limit  59

Final Data Set

Scale factor10.00
Number of 'full' reflections  6398
Number of 'partial' reflections 12340
Total number of integrated reflections 15595
Total number of unique reflections  3764
Data completeness  97.2%
Resolution range7.00-0.77 A
Theta range2.91°-27.48°
Average Intensity   53.7
Average Sigma(I)    1.6
Overall R-merge (linear)  0.114

Sadabs Results

Parameter refinement on 12256 reflections reduced R(int) from 0.0742 to 0.0446

Before rejection, 18062 reflections total and 3863 unique

After rejection, 15554 reflections total and 3837 unique

Runs

  Run 2-theta  R(int)  Incid. factors  Diffr. factors    K     Total I>2sig(I)
    1   21.4  0.0524   0.840 - 1.086   0.985 - 1.103   2.089    6880    4366
    2   15.2  0.0400   0.732 - 1.063   0.987 - 1.062   1.992    3236    2256
    3   20.8  0.0429   0.698 - 0.803   0.985 - 1.056   2.031    2297    1559
    4   20.9  0.0500   0.705 - 0.933   0.986 - 1.085   2.011    3141    2155
Ratio of minimum to maximum apparent transmission: 0.893039

Metadata

  Group    Service  
  Operator   Sam Callear  
  Sample Owner   Dr J Spencer  
  Local Code   HP153(B)AMINO  
  Formula   C16H24N4O  
  Crystal Colour    Brown  
  Crystal Habit    Block  
  Crystal Size   0.18 x 0.15 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/