Branched Phospha[7]triangulanes
J. Chris Slootweg; Marius Schakel; Frans J. J. de Kanter; Andreas W. Ehlers; Sergei I. Kozhushkov; Armin de Meijere; Martin Lutz; Anthony L. Spek; Koop Lammertsma; Journal of the American Chemical Society 126 (2004) 3050–3051; doi:10.1021/ja031648p

data_4112299
_publ_contact_author_address
; Bijvoet Center for Biomolecular Research
  Dep. Crystal and Structural Chemistry
  Utrecht University
  Padualaan 8
  3584 CH Utrecht
  The Netherlands
;
_publ_contact_author_email       m.lutz@chem.uu.nl
_publ_contact_author_fax         '[+31] 30 2533940'
_publ_contact_author_name        'Martin Lutz'
_publ_contact_author_phone       '[+31] 30 2533902'
_publ_section_title
;
 Branched Phospha[7]triangulanes
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              3050
_journal_page_last               3051
_journal_paper_doi               10.1021/ja031648p
_journal_volume                  126
_journal_year                    2004
_chemical_formula_moiety         'C20 H21 P'
_chemical_formula_sum            'C20 H21 P'
_chemical_formula_weight         292.34
_space_group_IT_number           11
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yb'
_symmetry_space_group_name_H-M   'P 1 21/m 1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 115.6968(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   7.8462(1)
_cell_length_b                   12.9734(2)
_cell_length_c                   8.7058(1)
_cell_measurement_reflns_used    25677
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.02
_cell_volume                     798.538(19)
_computing_cell_refinement       HKL2000
_computing_data_collection       'Nonius COLLECT'
_computing_data_reduction        HKL2000
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0369
_diffrn_reflns_av_sigmaI/netI    0.0211
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            15383
_diffrn_reflns_theta_full        27.46
_diffrn_reflns_theta_max         27.46
_diffrn_reflns_theta_min         2.60
_exptl_absorpt_coefficient_mu    0.164
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.216
_exptl_crystal_description       needle
_exptl_crystal_F_000             312
_exptl_crystal_size_max          0.46
_exptl_crystal_size_mid          0.36
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.278
_refine_diff_density_min         -0.285
_refine_diff_density_rms         0.038
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     138
_refine_ls_number_reflns         1913
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.0354
_refine_ls_R_factor_gt           0.0307
_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^)+(0.0360P)^2^+0.3154P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0784
_refine_ls_wR_factor_ref         0.0812
_reflns_number_gt                1738
_reflns_number_total             1913
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ja031648psi20031211_113904_2.cif
_cod_data_source_block           s2644a
_cod_original_cell_volume        798.537(18)
_cod_original_sg_symbol_H-M      'P 21/m'
_cod_database_code               4112299