Nickel-Catalyzed {[}4+2] Cycloaddition of Enones with Alkynes
Koyama, Ichiro; Kurahashi, Takuya; Matsubara, Seijiro; JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 131 (2009) 1350–; doi:10.1021/ja807952r

data_4101594
_publ_section_title
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 Nickel-Catalyzed {[}4+2] Cycloaddition of Enones with Alkynes
;
_journal_issue                   4
_journal_name_full               'JOURNAL OF THE AMERICAN CHEMICAL SOCIETY'
_journal_page_first              1350
_journal_paper_doi               10.1021/ja807952r
_journal_volume                  131
_journal_year                    2009
_chemical_formula_sum            'C22 H22 O3'
_chemical_formula_weight         334.40
_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                 117.062(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.601(5)
_cell_length_b                   9.537(4)
_cell_length_c                   14.720(5)
_cell_measurement_reflns_used    1968
_cell_measurement_temperature    299(2)
_cell_measurement_theta_max      22.72
_cell_measurement_theta_min      2.64
_cell_volume                     1825.5(11)
_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      299(2)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_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  0.0366
_diffrn_reflns_av_sigmaI/netI    0.0421
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            10747
_diffrn_reflns_theta_full        27.12
_diffrn_reflns_theta_max         27.12
_diffrn_reflns_theta_min         1.57
_exptl_absorpt_coefficient_mu    0.080
_exptl_absorpt_correction_T_max  0.9842
_exptl_absorpt_correction_T_min  0.9244
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.217
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       columnar
_exptl_crystal_F_000             712
_exptl_crystal_size_max          1.00
_exptl_crystal_size_mid          0.50
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.295
_refine_diff_density_min         -0.219
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     229
_refine_ls_number_reflns         3999
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.030
_refine_ls_R_factor_all          0.0823
_refine_ls_R_factor_gt           0.0575
_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^)+(0.0751P)^2^+0.2944P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1446
_refine_ls_wR_factor_ref         0.1589
_reflns_number_gt                2769
_reflns_number_total             3999
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            reformated.cif
_cod_data_source_block           6ik
_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_enum 1527 2010-12-29 10:47:43Z saulius 
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_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4101594