The Benzylidenecarbene-Phenylacetylene Rearrangement: An Experimental and Computational Study
Kathryn A. Moore; Jesus S. Vidaurri-Martinez; Dasan M. Thamattoor; Journal of the American Chemical Society 134 (2012) 20037–20040; doi:10.1021/ja310440e

data_4119015
_publ_section_title
;
 The Benzylidenecarbene-Phenylacetylene Rearrangement: An Experimental and
 Computational Study
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              20037
_journal_page_last               20040
_journal_paper_doi               10.1021/ja310440e
_journal_volume                  134
_journal_year                    2012
_chemical_formula_moiety         'C22 H17 Br'
_chemical_formula_sum            'C22 H17 Br'
_chemical_formula_weight         361.27
_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                 106.4380(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.1141(8)
_cell_length_b                   5.6496(3)
_cell_length_c                   22.6159(14)
_cell_measurement_reflns_used    5042
_cell_measurement_temperature    93(2)
_cell_measurement_theta_max      26.33
_cell_measurement_theta_min      2.81
_cell_volume                     1607.11(16)
_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, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      93(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_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  0.1014
_diffrn_reflns_av_sigmaI/netI    0.0631
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            12841
_diffrn_reflns_theta_full        26.40
_diffrn_reflns_theta_max         26.40
_diffrn_reflns_theta_min         1.62
_exptl_absorpt_coefficient_mu    2.555
_exptl_absorpt_correction_T_max  0.8217
_exptl_absorpt_correction_T_min  0.5245
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Sheldrick, G.M., (2008) SADABS University of Gottingen, Germany'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.493
_exptl_crystal_description       plate
_exptl_crystal_F_000             736
_exptl_crystal_size_max          0.29
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.08
_refine_diff_density_max         1.242
_refine_diff_density_min         -0.484
_refine_diff_density_rms         0.108
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.959
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     208
_refine_ls_number_reflns         3270
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.959
_refine_ls_R_factor_all          0.0475
_refine_ls_R_factor_gt           0.0400
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0659P)^2^+0.1400P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1020
_refine_ls_wR_factor_ref         0.1063
_reflns_number_gt                2708
_reflns_number_total             3270
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja310440e_si_002.cif
_cod_data_source_block           das1218m
_cod_database_code               4119015