2,2-Difluoro-4-phenyl-1,3,2-dioxaborolo[4,5-<i>c</i>]chromen-5-ium-2-ide
Wera, Michał; Roshal, Alexander D.; Błażejowski, Jerzy; Acta Crystallographica Section E 66 (2010) o3354–o3355; doi:10.1107/S1600536810048919

data_2228486
_publ_section_title
;
 2,2-Difluoro-4-phenyl-1,3,2-dioxaborolo[4,5-<i>c</i>]chromen-5-ium-2-ide
;
_journal_coeditor_code           NG5071
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o3354
_journal_page_last               o3355
_journal_paper_doi               10.1107/S1600536810048919
_journal_volume                  66
_journal_year                    2010
_chemical_formula_iupac          'C15 H9 B F2 O3'
_chemical_formula_moiety         'C15 H9 B F2 O3'
_chemical_formula_sum            'C15 H9 B F2 O3'
_chemical_formula_weight         286.03
_chemical_name_systematic
;
2,2-Difluoro-4-phenyl-1,3,2-dioxaborolo[4,5-<i>c</i>]chromen-5-ium-2-ide
;
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                74.310(11)
_cell_angle_beta                 75.931(13)
_cell_angle_gamma                71.296(11)
_cell_formula_units_Z            2
_cell_length_a                   7.1969(10)
_cell_length_b                   9.7054(11)
_cell_length_c                   9.9986(15)
_cell_measurement_reflns_used    2218
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      25.05
_cell_measurement_theta_min      3.03
_cell_volume                     627.43(16)
_computing_cell_refinement
'<i>CrysAlis RED</i> (Oxford Diffraction, 2008)'
_computing_data_collection
'<i>CrysAlis CCD</i> (Oxford Diffraction, 2008)'
_computing_data_reduction
'<i>CrysAlis RED</i> (Oxford Diffraction, 2008)'
_computing_molecular_graphics    '<i>ORTEP-3</i> (Farrugia, 1997)'
_computing_publication_material
'<i>SHELXL97</i> (Sheldrick, 2008) and <i>PLATON</i> (Spek, 2009)'
_computing_structure_refinement  '<i>SHELXL97</i> (Sheldrick, 2008)'
_computing_structure_solution    '<i>SHELXS97</i> (Sheldrick, 2008)'
_diffrn_ambient_temperature      295(2)
_diffrn_detector_area_resol_mean 10.4002
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Oxford Diffraction Gemini R Ultra Ruby CCD'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0338
_diffrn_reflns_av_sigmaI/netI    0.0851
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            4848
_diffrn_reflns_theta_full        25.05
_diffrn_reflns_theta_max         25.05
_diffrn_reflns_theta_min         3.03
_exptl_absorpt_coefficient_mu    0.123
_exptl_absorpt_correction_T_max  0.979
_exptl_absorpt_correction_T_min  0.945
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
(CrysAlis RED; Oxford Diffraction, 2008)
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.514
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             292
_exptl_crystal_size_max          0.6
_exptl_crystal_size_mid          0.02
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.222
_refine_diff_density_min         -0.242
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.097
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         2218
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.097
_refine_ls_R_factor_all          0.1256
_refine_ls_R_factor_gt           0.0582
_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^)+(0.0787P)^2^+0.4107P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2217
_refine_ls_wR_factor_ref         0.2335
_reflns_number_gt                996
_reflns_number_total             2218
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            ng5071.cif
_cod_data_source_block           I
_cod_original_cell_volume        627.43(15)
_cod_database_code               2228486
_cod_database_fobs_code          2228486