Selective dehydrocoupling of phosphines by lithium chloride carbenoids.
Molitor, Sebastian; Becker, Julia; Gessner, Viktoria H.; Journal of the American Chemical Society 136 (2014) 15517–15520; doi:10.1021/ja509381w

data_4122822
_publ_section_title
;
 Selective dehydrocoupling of phosphines by lithium chloride carbenoids.
;
_journal_issue                   44
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              15517
_journal_page_last               15520
_journal_paper_doi               10.1021/ja509381w
_journal_volume                  136
_journal_year                    2014
_chemical_formula_sum            'C28 H28 O4 P2'
_chemical_formula_weight         490.44
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2014-04-10T17:47:59-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 107.496(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   24.4088(15)
_cell_length_b                   6.4226(4)
_cell_length_c                   16.4976(10)
_cell_measurement_temperature    100(2)
_cell_volume                     2466.6(3)
_computing_cell_refinement       'SAINTPLUS 8.18C (Bruker APEX2, 2011)'
_computing_data_collection       'SMART 5.622 (Bruker AXS, 2001)'
_computing_data_reduction        'SAINTPLUS 8.18C (Bruker APEX2, 2011)'
_computing_molecular_graphics    'Ortep-3 V1.08 (Farrugia, 2001)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX-CCD'
_diffrn_measurement_method       omega-scans
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0248
_diffrn_reflns_av_unetI/netI     0.0168
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            13801
_diffrn_reflns_theta_full        25
_diffrn_reflns_theta_max         25
_diffrn_reflns_theta_min         1.75
_exptl_absorpt_coefficient_mu    0.209
_exptl_absorpt_correction_T_max  0.7532
_exptl_absorpt_correction_T_min  0.6998
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'Sadabs 2008 (Bruker AXS, 2008)'
_exptl_crystal_density_diffrn    1.321
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1032
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.316
_refine_diff_density_min         -0.284
_refine_diff_density_rms         0.041
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.032
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     156
_refine_ls_number_reflns         2163
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.032
_refine_ls_R_factor_all          0.0331
_refine_ls_R_factor_gt           0.0289
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0478P)^2^+2.4165P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0799
_refine_ls_wR_factor_ref         0.0834
_reflns_number_gt                1970
_reflns_number_total             2163
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja509381w_si_003.cif
_cod_data_source_block           sad
_cod_depositor_comments
'Adding full bibliography for 4122822--4122824.cif.'
_cod_original_sg_symbol_H-M      C2/C
_cod_database_code               4122822