Donor-acceptor assisted alkyne hydration: a luminescent boron-stabilized enol.
Sun, Christina; Lu, Jiasheng; Wang, Suning; Organic letters 13 (2011) 1226–1229; doi:10.1021/ol200106a

data_1502033
_publ_section_title
;
 Donor-acceptor assisted alkyne hydration: a luminescent boron-stabilized
 enol.
;
_journal_issue                   5
_journal_name_full               'Organic letters'
_journal_page_first              1226
_journal_page_last               1229
_journal_paper_doi               10.1021/ol200106a
_journal_volume                  13
_journal_year                    2011
_chemical_formula_sum            'C31 H30 B N'
_chemical_formula_weight         427.37
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 92.161(16)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.148(12)
_cell_length_b                   23.74(3)
_cell_length_c                   12.404(18)
_cell_measurement_reflns_used    1168
_cell_measurement_temperature    180(2)
_cell_measurement_theta_max      20.61
_cell_measurement_theta_min      2.38
_cell_volume                     2398(6)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      180(2)
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_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  0.1592
_diffrn_reflns_av_sigmaI/netI    0.1720
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       29
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            16510
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.38
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.067
_exptl_absorpt_correction_T_max  0.9987
_exptl_absorpt_correction_T_min  0.9933
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.184
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             912
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.411
_refine_diff_density_min         -0.386
_refine_diff_density_rms         0.094
_refine_ls_extinction_coef       0.026(6)
_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   1.097
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     305
_refine_ls_number_reflns         4640
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.097
_refine_ls_R_factor_all          0.2376
_refine_ls_R_factor_gt           0.1279
_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^)+(0.1628P)^2^+1.7000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.3261
_refine_ls_wR_factor_ref         0.3848
_reflns_number_gt                1951
_reflns_number_total             4640
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol200106a_si_003.cif
_cod_data_source_block           louis21
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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_sg_symbol_H-M      P2(1)/c
_cod_database_code               1502033