Changes in Coordination of Sterically Demanding Hybrid Imidazolylphosphine Ligands on Pd(0) and Pd(II)
Douglas B. Grotjahn; Yi Gong; Lev Zakharov; James A. Golen; Arnold L. Rheingold; Journal of the American Chemical Society 128 (2006) 438–453; doi:10.1021/ja054779u

data_4110355
_publ_section_title
;
 Changes in Coordination of Sterically Demanding Hybrid
 Imidazolylphosphine Ligands on Pd(0) and Pd(II)
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              438
_journal_page_last               453
_journal_paper_doi               10.1021/ja054779u
_journal_volume                  128
_journal_year                    2006
_chemical_formula_sum            'C24 H46 N4 P2 Pd'
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_cell_angle_beta                 110.4000(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.9009(11)
_cell_length_b                   11.4188(8)
_cell_length_c                   16.5897(11)
_cell_measurement_reflns_used    7289
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      28.26
_cell_measurement_theta_min      2.25
_cell_volume                     2823.3(3)
_computing_cell_refinement       'Bruker SMART'
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_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      223(2)
_diffrn_measured_fraction_theta_full 0.973
_diffrn_measured_fraction_theta_max 0.973
_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
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_diffrn_reflns_av_sigmaI/netI    0.0239
_diffrn_reflns_limit_h_max       20
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_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
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_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            20705
_diffrn_reflns_theta_full        28.27
_diffrn_reflns_theta_max         28.27
_diffrn_reflns_theta_min         1.53
_exptl_absorpt_coefficient_mu    0.788
_exptl_absorpt_correction_type   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.315
_exptl_crystal_density_meas      0
_exptl_crystal_description       block
_exptl_crystal_F_000             1176
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.836
_refine_diff_density_min         -0.290
_refine_diff_density_rms         0.069
_refine_ls_extinction_method     none
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_refine_ls_number_reflns         6800
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_refine_ls_R_factor_all          0.0317
_refine_ls_R_factor_gt           0.0278
_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^)+(0.0700P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
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_refine_ls_wR_factor_gt          0.0947
_refine_ls_wR_factor_ref         0.0982
_reflns_number_gt                6077
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_reflns_threshold_expression     >2sigma(I)
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