Structural and Energetic Landscape of Fluorinated 1,4-Phenylenediboronic Acids
Durka, Krzysztof; Jarzembska, Katarzyna N.; Kamiński, Radosław; Luliński, Sergiusz; Serwatowski, Janusz; Woźniak, Krzysztof; Crystal Growth & Design 12 (2012) 3720–; doi:10.1021/cg3005272

data_4506381
_publ_section_title
;
 Structural and Energetic Landscape of Fluorinated 1,4-Phenylenediboronic
 Acids
;
_journal_issue                   7
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              3720
_journal_paper_doi               10.1021/cg3005272
_journal_volume                  12
_journal_year                    2012
_chemical_formula_moiety         'C6 H4 B2 F4 O4'
_chemical_formula_sum            'C6 H4 B2 F4 O4'
_chemical_formula_weight         237.71
_chemical_melting_point          ?
_chemical_name_systematic        'tetraflouro-1,2-phenylenediboronic acid'
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 106.254(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.4258(12)
_cell_length_b                   5.0244(6)
_cell_length_c                   10.1656(14)
_cell_measurement_reflns_used    786
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      24.22
_cell_measurement_theta_min      2.75
_cell_volume                     413.16(10)
_computing_cell_refinement       'Bruker APEX2 software'
_computing_data_collection       'Bruker APEX2 software'
_computing_data_reduction
;
 SAINT intergration software, Bruker AXS
 SORTAV, R. H. Blessing, Acta Cryst., 1995, A51, 33
;
_computing_structure_refinement
;
 SHELXS-97, G. M. Sheldrick, Acta. Cryst., 2008, A64, 112
;
_computing_structure_solution
;
 SHELXS-97, G. M. Sheldrick, Acta. Cryst., 2008, A64, 112
;
_diffrn_ambient_temperature      100(2)
_diffrn_detector                 'APEXII CCD camera'
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device       '\k-geometry diffractometer'
_diffrn_measurement_device_type  'Bruker APEXII'
_diffrn_measurement_method       'omega scans'
_diffrn_orient_matrix_type       'X-axis to radiation source'
_diffrn_radiation_monochromator  'multi-layer optics'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'TXS rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0412
_diffrn_reflns_av_sigmaI/netI    0.0384
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            3774
_diffrn_reflns_reduction_process
;
 Scaled and merged with SORTAV
 R. H. Blessing, Cryst. Rev., 1987, 1, 3
 R. H. Blessing, J. Appl. Cryst., 1989, 22, 396
;
_diffrn_reflns_theta_full        27.52
_diffrn_reflns_theta_max         27.52
_diffrn_reflns_theta_min         2.78
_diffrn_source                   'rotating-anode X-ray source'
_exptl_absorpt_coefficient_mu    0.204
_exptl_absorpt_correction_T_max  0.998
_exptl_absorpt_correction_T_min  0.972
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 R. H. Blessing, Acta Cryst., 1995, A51, 33
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.911
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       unspecified
_exptl_crystal_F_000             236
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.480
_refine_diff_density_min         -0.360
_refine_diff_density_rms         0.109
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.109
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     86
_refine_ls_number_reflns         947
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.107
_refine_ls_R_factor_all          0.0758
_refine_ls_R_factor_gt           0.0554
_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^)+(0.0811P)^2^+0.9010P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1608
_refine_ls_wR_factor_ref         0.1725
_reflns_number_gt                711
_reflns_number_total             947
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg3005272_si_002.cif
_cod_data_source_block           tF
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value 'not measured' was changed to '?' -
the value is undefined or not given.

'_diffrn_radiation_probe' value
'X-ray' changed to 'x-ray' 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 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_Hall     -P2yn
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               4506381