A novel approach to bis-isoxazolines using a latent form of cyclopentadienone
Basra, Sanjivanjit K.; Drew, Michael G. B.; Mann, John; Kane, Peter D.; Journal of the Chemical Society, Perkin Transactions 1  (2000) 3592–; doi:10.1039/b005520o

data_7213418
_publ_section_title
;
 A novel approach to bis-isoxazolines using a latent form of
 cyclopentadienone
;
_journal_issue                   21
_journal_name_full
'Journal of the Chemical Society, Perkin Transactions 1'
_journal_page_first              3592
_journal_paper_doi               10.1039/b005520o
_journal_year                    2000
_chemical_formula_sum            'C15 H13 Br N2 O3'
_chemical_formula_weight         349.18
_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                 103.710(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   5.513(8)
_cell_length_b                   49.82(6)
_cell_length_c                   10.840(14)
_cell_measurement_temperature    293(2)
_cell_volume                     2892(7)
_computing_cell_refinement       XDS
_computing_data_collection       'XDS (Kabsch, 1991)'
_computing_data_reduction        XDS
_computing_molecular_graphics    PLATON(Spek,1994)
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measurement_device       'Marresearch Image Plate'
_diffrn_measurement_method
'95 frames at 2^o intervals, counting time 2 min.'
_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  0.0684
_diffrn_reflns_av_sigmaI/netI    0.1013
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       61
_diffrn_reflns_limit_k_min       -61
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            8977
_diffrn_reflns_theta_max         26.07
_diffrn_reflns_theta_min         1.98
_exptl_absorpt_coefficient_mu    2.854
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.242
_exptl_absorpt_correction_type   'DIFABS(Walker and Stuart, 1983)'
_exptl_crystal_density_diffrn    1.604
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1408
_refine_diff_density_max         0.513
_refine_diff_density_min         -0.536
_refine_diff_density_rms         0.088
_refine_ls_extinction_coef       0.0028(7)
_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   1.088
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     382
_refine_ls_number_reflns         5394
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.088
_refine_ls_R_factor_all          0.2013
_refine_ls_R_factor_gt           0.1080
_refine_ls_shift/su_max          0.061
_refine_ls_shift/su_mean         0.014
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0886P)^2^+15.4553P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2553
_refine_ls_wR_factor_ref         0.2893
_reflns_number_gt                2935
_reflns_number_total             5394
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b005520osup1.cif
_cod_data_source_block           12
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0886P)^2^+15.4553P] where P=(Fo^2^+2Fc^2^)/3'
was changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0886P)^2^+15.4553P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        2892(6)
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               7213418