2,6-Dimethyl-1,4-benzoquinone 4-monooxime
Odabaşoğlu, Mustafa; Albayrak, Çiğdem; Büyükgüngör, Orhan; Acta Crystallographica Section C 61 (2005) o240–o242; doi:10.1107/S0108270105005500

data_2014777
_publ_section_title
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 2,6-Dimethyl-1,4-benzoquinone 4-monooxime
;
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o240
_journal_page_last               o242
_journal_paper_doi               10.1107/S0108270105005500
_journal_volume                  61
_journal_year                    2005
_chemical_formula_iupac          'C8 H9 N O2'
_chemical_formula_moiety         'C8 H9 N O2'
_chemical_formula_sum            'C8 H9 N O2'
_chemical_formula_weight         151.16
_chemical_melting_point          445.0(10)
_chemical_name_systematic
;
2,6-Dimethyl-1,4-benzoquinone monooxime
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            16
_cell_length_a                   7.2505(7)
_cell_length_b                   16.3379(10)
_cell_length_c                   26.4894(17)
_cell_measurement_reflns_used    7762
_cell_measurement_temperature    296
_cell_measurement_theta_max      25.88
_cell_measurement_theta_min      1.46
_cell_volume                     3137.9(4)
_computing_cell_refinement       X-AREA
_computing_data_collection       'X-AREA (Stoe & Cie, 2002)'
_computing_data_reduction        'X-RED32 (Stoe & Cie, 2002)'
_computing_molecular_graphics    'ORTEP-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      296
_diffrn_detector_area_resol_mean 6.67
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Stoe IPDS-2'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  'plane graphite'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.062
_diffrn_reflns_av_sigmaI/netI    0.040
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            20873
_diffrn_reflns_theta_full        26.07
_diffrn_reflns_theta_max         26.07
_diffrn_reflns_theta_min         1.54
_diffrn_standards_decay_%        <2
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.093
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.280
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'tetragonal prism'
_exptl_crystal_F_000             1280
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.31
_refine_diff_density_min         -0.27
_refine_ls_extinction_coef       0.0052(11)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL97 (Sheldrick, 1997)'
_refine_ls_goodness_of_fit_ref   0.872
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     198
_refine_ls_number_reflns         3089
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.872
_refine_ls_R_factor_all          0.0895
_refine_ls_R_factor_gt           0.0481
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w = 1/[\s^2^(Fo^2^)+(0.0913P)^2^] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1266
_refine_ls_wR_factor_ref         0.1425
_reflns_number_gt                1718
_reflns_number_total             3089
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            bm1603.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '444-446' was changed to '445.0(10)'
- the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 

The following automatic conversions were performed:

'_chemical_melting_point' value '444-446' was changed to '445.0(10)'
- the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
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_cod_database_code               2014777