Summary report for Directory: home/diska/06skc0003

Report generated Jan 28, 2006; 20:11:39

Unit cell

1084 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) 6.0084 +/- 0.0008

b (Angstrom) 9.6903 +/- 0.0013

c (Angstrom) 8.1526 +/- 0.0013

alpha (°) 90.000

beta (°) 90.039 +/- 0.008

gamma (°) 90.000

Volume (A**3) 474.67 +/- 0.12
Mosaicity (°) 1.965 +/- 0.008

Symmetry used in scalepack	p2
a (Angstrom)	6.0084 +/- 0.0008
b (Angstrom)	9.6903 +/- 0.0013
c (Angstrom)	8.1526 +/- 0.0013
alpha (°)	90.000
beta (°)	90.039 +/- 0.008
gamma (°)	90.000
Volume (A**3)	474.67 +/- 0.12
Mosaicity (°)	1.965 +/- 0.008

Data collection

Summary

Total number of images collected	193
Total exposure time	189.7 minutes
Data collection exposure time	185.6 minutes
Data collection wall-clock time	199.7 minutes

Experimental Conditions

Wavelength	0.71073 A
Crystal to detector distance	33.00 mm

Scans

Type	Name	# images	Total Rotation	Per frame Rotation	Exposure per frame	Used in scaling
data collection	s01f	128	`256.0`° phi	2.000°	60 seconds	Yes
data collection	s02f	57	`114.0`° omega	2.000°	60 seconds	Yes
Phi/Chi	i01f - i08f	8			30 seconds

Scalepack Scaling

Deleted observations

Rejected	`72`
Zero sigma or profile test	`1`
Overload or incomplete profile	`366`
Sigma cutoff	`15`
High resolution limit	`55`

Final Data Set

Scale factor range	10.00-17.38
Number of 'full' reflections	`11`
Number of 'partial' reflections	`5561`
Total number of integrated reflections	`4996`
Total number of unique reflections	`1149`
Data completeness	`99.7%`
Resolution range	7.00-0.77 A
Theta range	2.91°-27.48°
Average Intensity	`59.3`
Average Sigma(I)	`3.0`
Overall R-merge (linear)	`0.084`

Sadabs Results

Parameter refinement on 3507 reflections reduced R(int) from 0.1746 to 0.0577

Before rejection, 5451 reflections total and 1163 unique

After rejection, 5340 reflections total and 1163 unique

Runs

  Run 2-theta  R(int)  Incid. factors  Diffr. factors    K     Total I>2sig(I)
    1   10.1  0.0810   0.782 - 1.003   0.880 - 1.611   1.411    3673    2388
    2   -9.6  0.0583   0.709 - 1.054   0.879 - 1.418   1.242    1667    1315

Ratio of minimum to maximum apparent transmission: 0.545641

Metadata

Group Mike Hursthouse

Operator Sam Callear

Sample Owner

Local Code wp5 b2

Formula C4H6N2

Crystal Colour Colourless

Crystal Habit Lath

Crystal Size 0.1 x 0.04 x 0.02 (mm3)

Temperature 120(K)

Generator 50 (kV) 85 (mA)

Primary Solvent

Other Solvents

Group	Mike Hursthouse
Operator	Sam Callear
Sample Owner
Local Code	wp5 b2
Formula	C4H6N2
Crystal Colour	Colourless
Crystal Habit	Lath
Crystal Size	0.1 x 0.04 x 0.02 (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/