Enantioselective palladium-catalyzed carbozincation of cyclopropenes.
Krämer, Katja; Leong, Paul; Lautens, Mark; Organic letters 13 (2011) 819–821; doi:10.1021/ol1029904

data_1501943
_publ_section_title
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 Enantioselective palladium-catalyzed carbozincation of cyclopropenes.
;
_journal_issue                   4
_journal_name_full               'Organic letters'
_journal_page_first              819
_journal_page_last               821
_journal_paper_doi               10.1021/ol1029904
_journal_volume                  13
_journal_year                    2011
_chemical_absolute_configuration unk
_chemical_formula_sum            'C20 H20'
_chemical_formula_weight         260.36
_space_group_IT_number           173
_symmetry_cell_setting           hexagonal
_symmetry_space_group_name_Hall  'P 6c'
_symmetry_space_group_name_H-M   'P 63'
_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            6
_cell_length_a                   17.959(2)
_cell_length_b                   17.959(2)
_cell_length_c                   7.9998(5)
_cell_measurement_reflns_used    8068
_cell_measurement_temperature    150(1)
_cell_measurement_theta_max      25.0
_cell_measurement_theta_min      2.6
_cell_volume                     2234.5(4)
_computing_cell_refinement       'Denzo-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'Collect (Nonius B.V., 1997-2002)'
_computing_data_reduction        Denzo-SMN
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material  'SHELXTL V6.1'
_computing_structure_refinement  'SHELXTL V6.1 (Sheldrick, 2008)'
_computing_structure_solution    'SIR-92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      150(1)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       '\f scans and \w scans with \k offsets'
_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  0.1090
_diffrn_reflns_av_sigmaI/netI    0.0814
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            8068
_diffrn_reflns_theta_full        25.0
_diffrn_reflns_theta_max         25.0
_diffrn_reflns_theta_min         2.6
_exptl_absorpt_coefficient_mu    0.065
_exptl_absorpt_correction_T_max  1.034
_exptl_absorpt_correction_T_min  0.835
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
multi-scan from symmetry-related measurements 
 Sortav (Blessing 1995) 
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.161
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             840
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.227
_refine_diff_density_min         -0.180
_refine_diff_density_rms         0.038
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.093
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     192
_refine_ls_number_reflns         1418
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.093
_refine_ls_R_factor_all          0.1498
_refine_ls_R_factor_gt           0.0722
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0782P)^2^+0.6754P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1556
_refine_ls_wR_factor_ref         0.1929
_reflns_number_gt                782
_reflns_number_total             1418
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ol1029904_si_001.cif
_cod_data_source_block           k09175
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Hexagonal' changed to 'hexagonal'
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 
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_cod_database_code               1501943