Fluoride anion binding by cyclic boronic esters: influence of backbone chelate on receptor integrity.
Bresner, Christopher; Day, Joanna K.; Coombs, Natalie D.; Fallis, Ian A.; Aldridge, Simon; Coles, Simon J.; Hursthouse, Michael B.; Dalton transactions (Cambridge, England : 2003)  (2006) 3660–3667; doi:10.1039/B605031J

data_7007431
_publ_section_title
;
 Fluoride anion binding by cyclic boronic esters: influence of backbone
 chelate on receptor integrity.
;
_journal_issue                   30
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              3660
_journal_page_last               3667
_journal_paper_doi               10.1039/B605031J
_journal_year                    2006
_chemical_formula_sum            'C24 H21 B Fe O2'
_chemical_formula_weight         408.07
_chemical_name_systematic
;
?
;
_space_group_IT_number           144
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  'P 31'
_symmetry_space_group_name_H-M   'P 31'
_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                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            3
_cell_length_a                   9.5746(3)
_cell_length_b                   9.5746(3)
_cell_length_c                   18.2224(7)
_cell_measurement_reflns_used    5214
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.91
_cell_volume                     1446.70(8)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0232
_diffrn_reflns_av_sigmaI/netI    0.0534
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            5630
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         3.32
_exptl_absorpt_coefficient_mu    0.799
_exptl_absorpt_correction_T_max  0.8253
_exptl_absorpt_correction_T_min  0.7956
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SORTAV (Blessing, 1997)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.405
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             636
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.317
_refine_diff_density_min         -0.318
_refine_diff_density_rms         0.040
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.037(19)
_refine_ls_extinction_coef       0.006(2)
_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   0.890
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     255
_refine_ls_number_reflns         3585
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.890
_refine_ls_R_factor_all          0.0271
_refine_ls_R_factor_gt           0.0260
_refine_ls_shift/su_max          0.015
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0473P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0685
_refine_ls_wR_factor_ref         0.0696
_reflns_number_gt                3518
_reflns_number_total             3585
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            B605031J.txt
_cod_data_source_block           s92
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Trigonal' changed to 'trigonal' 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 
;
_cod_original_sg_symbol_H-M      P3(1)
_cod_database_code               7007431