Summary report for Directory: diska/07skc0005

Report generated Feb 08, 2007; 10:50:49

Unit cell

20712 reflections with 2.91°<theta<27.48° (resolution between 7.00A and 0.77A) were used for unit cell refinement

Symmetry used
in scalepack c2

a (Angstrom) 5.3007 +/- 0.0004

b (Angstrom) 19.374 +/- 0.002

c (Angstrom) 10.0779 +/- 0.0010

alpha (°) 90.000

beta (°) 94.013 +/- 0.006

gamma (°) 90.000

Volume (A**3) 1032.40 +/- 0.17
Mosaicity (°) 1.900 +/- 0.005

Symmetry used in scalepack	c2
a (Angstrom)	5.3007 +/- 0.0004
b (Angstrom)	19.374 +/- 0.002
c (Angstrom)	10.0779 +/- 0.0010
alpha (°)	90.000
beta (°)	94.013 +/- 0.006
gamma (°)	90.000
Volume (A**3)	1032.40 +/- 0.17
Mosaicity (°)	1.900 +/- 0.005

Data collection

Summary

Total number of images collected	260
Total exposure time	111.5 minutes
Data collection exposure time	110.1 minutes
Data collection wall-clock time	130.8 minutes

Experimental Conditions

Wavelength	0.71073 A
Crystal to detector distance	30.00 mm

Scans

Type	Name	# images	Total Rotation	Per frame Rotation	Exposure per frame	Used in scaling
data collection	s01f	160	`320.0`° phi	2.000°	26 seconds	Yes
data collection	s02f	23	`46.0`° omega	2.000°	26 seconds	Yes
data collection	s03f	16	`32.0`° omega	2.000°	26 seconds	Yes
data collection	s04f	53	`106.0`° omega	2.000°	26 seconds	Yes
Phi/Chi	i01f - i08f	8			10 seconds

Scalepack Scaling

Deleted observations

Rejected	`51`
Overload or incomplete profile	`360`
Sigma cutoff	`37`
High resolution limit	`28`

Final Data Set

Scale factor range	10.00-10.75
Number of 'full' reflections	`103`
Number of 'partial' reflections	`9541`
Total number of integrated reflections	`8797`
Total number of unique reflections	`1217`
Data completeness	`99.5%`
Resolution range	7.00-0.77 A
Theta range	2.91°-27.48°
Average Intensity	`75.8`
Average Sigma(I)	`2.3`
Overall R-merge (linear)	`0.057`

Sadabs Results

Parameter refinement on 6423 reflections reduced R(int) from 0.0700 to 0.0468

Before rejection, 9040 reflections total and 1226 unique

After rejection, 8927 reflections total and 1226 unique

Runs

  Run 2-theta  R(int)  Incid. factors  Diffr. factors    K     Total I>2sig(I)
    1    7.4  0.0549   0.993 - 1.139   0.947 - 1.220   1.237    5797    4400
    2    6.8  0.0605   0.450 - 0.477   0.946 - 1.207   1.270     746     545
    3    6.8  0.0620   0.447 - 0.476   0.946 - 1.116   1.339     484     352
    4    6.8  0.0583   0.987 - 1.081   0.946 - 1.134   1.204    1900    1482

Ratio of minimum to maximum apparent transmission: 0.775264

Metadata

Group Mike Hursthouse

Operator Sam Callear

Sample Owner

Local Code wp7 h4

Formula C8H12O5N2

Crystal Colour Colourless

Crystal Habit Block

Crystal Size 0.25 x 0.2 x 0.09 (mm3)

Temperature 120(K)

Generator 50 (kV) 85 (mA)

Primary Solvent

Other Solvents

Group	Mike Hursthouse
Operator	Sam Callear
Sample Owner
Local Code	wp7 h4
Formula	C8H12O5N2
Crystal Colour	Colourless
Crystal Habit	Block
Crystal Size	0.25 x 0.2 x 0.09 (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    'graphite'
_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/