Gold-catalyzed synthesis of carbon-bridged medium-sized rings.
Barabé, Francis; Bétournay, Geneviève; Bellavance, Gabriel; Barriault, Louis; Organic letters 11 (2009) 4236–4238; doi:10.1021/ol901722q

data_1504147
_publ_section_title
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 Gold-catalyzed synthesis of carbon-bridged medium-sized rings.
;
_journal_issue                   18
_journal_name_full               'Organic letters'
_journal_page_first              4236
_journal_page_last               4238
_journal_paper_doi               10.1021/ol901722q
_journal_volume                  11
_journal_year                    2009
_chemical_formula_sum            'C18 H19 N O5'
_chemical_formula_weight         329.34
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 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                 91.991(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.725(10)
_cell_length_b                   16.200(11)
_cell_length_c                   6.768(5)
_cell_measurement_reflns_used    5901
_cell_measurement_temperature    202(2)
_cell_measurement_theta_max      25.50
_cell_measurement_theta_min      2.51
_cell_volume                     1613(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_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      202(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0439
_diffrn_reflns_av_sigmaI/netI    0.0397
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -7
_diffrn_reflns_number            5809
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         1.87
_exptl_absorpt_coefficient_mu    0.099
_exptl_absorpt_correction_T_max  0.9804
_exptl_absorpt_correction_T_min  0.9613
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, Bruker (2000)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.356
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             696
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.200
_refine_diff_density_min         -0.233
_refine_diff_density_rms         0.061
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.293
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     217
_refine_ls_number_reflns         1502
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.292
_refine_ls_R_factor_all          0.0635
_refine_ls_R_factor_gt           0.0544
_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^)+(0.0477P)^2^+1.2363P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1214
_refine_ls_wR_factor_ref         0.1243
_reflns_number_gt                1330
_reflns_number_total             1502
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol901722q_si_002.cif
_cod_data_source_block           sada
_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 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'n/a' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_cell_volume        1613.3(19)
_cod_original_sg_symbol_H-M      Cc
_cod_database_code               1504147