3-Methyl-3-pyrazolin-5-one
Zhenfeng Zhang; Shuo Jin; Siqian Wang; Bo Liu; Jianping Guo; Acta Crystallographica Section E 60 (2004) o315–o316; doi:10.1107/S160053680302974X

data_2203214
_publ_section_title
;
 3-Methyl-3-pyrazolin-5-one
;
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o315
_journal_page_last               o316
_journal_paper_doi               10.1107/S160053680302974X
_journal_volume                  60
_journal_year                    2004
_chemical_formula_moiety         'C4 H6 N2 O'
_chemical_formula_sum            'C4 H6 N2 O'
_chemical_formula_weight         98.11
_chemical_melting_point          215
_chemical_name_common            3-Methyl-3-Pyrazolin-5-one
_chemical_name_systematic        ' 3-Methyl-3-Pyrazolin-5-one'
_space_group_IT_number           43
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'F 2 -2d'
_symmetry_space_group_name_H-M   'F d d 2'
_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                   11.722(2)
_cell_length_b                   16.945(3)
_cell_length_c                   9.898(2)
_cell_measurement_reflns_used    867
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      44.403
_cell_measurement_theta_min      5.899
_cell_volume                     1966.0(6)
_computing_cell_refinement       'SAINT (Bruker, 2000)'
_computing_data_collection       'SMART (Bruker, 2000)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXTL/PC (Sheldrick, 1999)'
_computing_publication_material  SHELXTL/PC
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Smart CCD'
_diffrn_measurement_method       '\w scan'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0341
_diffrn_reflns_av_sigmaI/netI    0.0224
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            1933
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.95
_diffrn_standards_decay_%        3.14
_exptl_absorpt_coefficient_mu    0.099
_exptl_absorpt_correction_T_max  0.981
_exptl_absorpt_correction_T_min  0.557
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1997)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.326
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             832
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.126
_refine_diff_density_min         -0.163
_refine_ls_abs_structure_details 'see text'
_refine_ls_extinction_coef       0.0020(8)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.163
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     66
_refine_ls_number_reflns         460
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.162
_refine_ls_R_factor_all          0.0450
_refine_ls_R_factor_gt           0.0427
_refine_ls_shift/su_max          0.011
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w = 1/[\s^2^(Fo^2^)+(0.0630P)^2^+1.0082P] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1137
_refine_ls_wR_factor_ref         0.1152
_reflns_number_gt                439
_reflns_number_total             460
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ob6336.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Multi-scan' changed
to 'multi-scan' according to
'/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Multi-scan'
changed to 'multi-scan' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        1966.0(7)
_cod_database_code               2203214
_cod_database_fobs_code          2203214