EPSRC National Crystallography Service
Data Collection Summary kccd2 (damien)


Summary report for Directory: home/diska/2007NCS0623

Report generated Jul 09, 2007; 12:51:42

Unit cell

6132 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)11.9613 +/- 0.0005
b (Angstrom)6.6856 +/- 0.0002
c (Angstrom)13.4450 +/- 0.0004
alpha (°) 90.000
beta (°)106.263 +/- 0.002
gamma (°) 90.000
Volume (A**3)1032.15 +/- 0.06
Mosaicity (°)0.454 +/- 0.002

Data collection

Summary

Total number of images collected209
Total exposure time15.2 minutes
Data collection exposure time14.5 minutes
Data collection wall-clock time23.3 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 collections01f128256.0° phi2.000°4 secondsYes
data collections02f54108.0° omega2.000°4 secondsYes
data collections03f19 38.0° omega2.000°4 secondsYes
Phi/Chii01f - i08f85 seconds

Scalepack Scaling

Deleted observations

Rejected   1
Zero sigma or profile test   4
Overload or incomplete profile 290
Sigma cutoff 112
High resolution limit  40

Final Data Set

Scale factor10.00
Number of 'full' reflections  7638
Number of 'partial' reflections  3602
Total number of integrated reflections 10747
Total number of unique reflections  2563
Data completeness  99.8%
Resolution range7.00-0.77 A
Theta range2.91°-27.48°
Average Intensity   68.9
Average Sigma(I)    1.8
Overall R-merge (linear)  0.103

Sadabs Results

Parameter refinement on 7946 reflections reduced R(int) from 0.0725 to 0.0460

Before rejection, 10706 reflections total and 2579 unique

After rejection, 9511 reflections total and 2564 unique

Runs

  Run 2-theta  R(int)  Incid. factors  Diffr. factors    K     Total I>2sig(I)
    1   15.1  0.0478   0.791 - 0.979   0.977 - 1.057   2.096    6091    4549
    2   14.6  0.0421   0.801 - 1.057   0.984 - 1.056   2.105    2567    1803
    3   14.6  0.0390   0.789 - 0.841   0.982 - 1.045   1.989     853     651
Ratio of minimum to maximum apparent transmission: 0.924024

Metadata

  Group    Service  
  Operator   Louise Male  
  Sample Owner   Dr W. T. A. Harrison  
  Local Code   DW 41 #2  
  Formula   C11 H15 N2 O1  
  Crystal Colour    Colourless  
  Crystal Habit    Block  
  Crystal Size   0.16 x 0.14 x 0.1 (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/