5-(2-Fluorobenzylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione
Zeng, Wu-Lan; Jian, Fang-Fang; Acta Crystallographica Section E 65 (2009) o2587–; doi:10.1107/S1600536809038811

data_2223482
_publ_section_title
;
 5-(2-Fluorobenzylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione
;
_journal_coeditor_code           LH2910
_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o2587
_journal_paper_doi               10.1107/S1600536809038811
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          'C13 H11 F O4'
_chemical_formula_moiety         'C13 H11 F O4'
_chemical_formula_sum            'C13 H11 F O4'
_chemical_formula_weight         250.22
_chemical_name_systematic
;
5-(2-Fluorobenzylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                104.66(3)
_cell_angle_beta                 97.00(3)
_cell_angle_gamma                98.50(3)
_cell_formula_units_Z            2
_cell_length_a                   5.9907(12)
_cell_length_b                   7.6135(15)
_cell_length_c                   13.712(3)
_cell_measurement_reflns_used    2680
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.46
_cell_measurement_theta_min      3.11
_cell_volume                     590.1(2)
_computing_cell_refinement       'SAINT (Bruker, 1997)'
_computing_data_collection       'SMART (Bruker, 1997)'
_computing_data_reduction        'SAINT (Bruker, 1997)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Bruker SMART CCD'
_diffrn_measurement_method       '\f and \w'
_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  0.0152
_diffrn_reflns_av_sigmaI/netI    0.0162
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            5846
_diffrn_reflns_theta_full        27.46
_diffrn_reflns_theta_max         27.46
_diffrn_reflns_theta_min         3.11
_exptl_absorpt_coefficient_mu    0.115
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.408
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             260
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.285
_refine_diff_density_min         -0.207
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.093
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     163
_refine_ls_number_reflns         2680
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.093
_refine_ls_R_factor_all          0.0468
_refine_ls_R_factor_gt           0.0402
_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^)+(0.0689P)^2^+0.0762P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1142
_refine_ls_wR_factor_ref         0.1222
_reflns_number_gt                2232
_reflns_number_total             2680
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            lh2910.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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 'Triclinic' changed to 'triclinic'
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        590.0(2)
_cod_database_code               2223482
_cod_database_fobs_code          2223482