Silyl alkynylphosphine-boranes: key precursors of triazolylphosphines via tandem desilylation-Click chemistry.
Veillard, Romain; Bernoud, Elise; Abdellah, Ibrahim; Lohier, Jean-François; Alayrac, Carole; Gaumont, Annie-Claude; Organic & biomolecular chemistry 12 (2014) 3635–3640; doi:10.1039/c4ob00397g

data_7153784
_publ_section_title
;
 Silyl alkynylphosphine-boranes: key precursors of triazolylphosphines via
 tandem desilylation-Click chemistry.
;
_journal_issue                   22
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              3635
_journal_page_last               3640
_journal_paper_doi               10.1039/c4ob00397g
_journal_volume                  12
_journal_year                    2014
_chemical_formula_moiety         'C20 H18 B Br N3 P'
_chemical_formula_sum            'C20 H18 B Br N3 P'
_chemical_formula_weight         422.06
_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_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 98.935(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   11.4175(3)
_cell_length_b                   15.1163(4)
_cell_length_c                   23.4211(7)
_cell_measurement_reflns_used    4905
_cell_measurement_temperature    291(2)
_cell_measurement_theta_max      28.34
_cell_measurement_theta_min      2.52
_cell_volume                     3993.20(19)
_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      291(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_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  0.0186
_diffrn_reflns_av_sigmaI/netI    0.0242
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            13208
_diffrn_reflns_theta_full        28.70
_diffrn_reflns_theta_max         28.70
_diffrn_reflns_theta_min         2.52
_exptl_absorpt_coefficient_mu    2.147
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.404
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1712
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.41
_exptl_crystal_size_min          0.35
_refine_diff_density_max         0.700
_refine_diff_density_min         -0.663
_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     236
_refine_ls_number_reflns         5129
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.023
_refine_ls_R_factor_all          0.0584
_refine_ls_R_factor_gt           0.0385
_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^)+(0.0431P)^2^+3.8641P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0936
_refine_ls_wR_factor_ref         0.1037
_reflns_number_gt                3828
_reflns_number_total             5129
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ob00397g2.cif
_cod_data_source_block           2j
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 

 Adding full bibliography for 7153779--7153787.cif.
;
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               7153784