Diphosphines with Strongly Polarized P-P Bonds: Hybrids between Covalent Molecules and Donor-Acceptor Adducts with Flexible Molecular Structures
Sebastian Burck; Kathrin Götz; Martin Kaupp; Martin Nieger; Johannes Weber; Jörn Schmedt auf der Günne; Dietrich Gudat; Journal of the American Chemical Society 131 (2009) 10763–10774; doi:10.1021/ja903156p

data_4104754
_publ_contact_author
;
        Martin Nieger
        Laboratory of Inorganic Chemistry
        Department of Chemistry
        Universitity of Helsinki
        P.O. Box 55
        FIN-00014 University of Helsinki
        Finland
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_publ_contact_author_email       martin.nieger@helsinki.fi
_publ_contact_author_fax         '++358 9 191 50198'
_publ_contact_author_phone       '++358 9 191 50223'
_publ_section_title
;
 Diphosphines with Strongly Polarized P-P Bonds: Hybrids between Covalent
 Molecules and Donor-Acceptor Adducts with Flexible Molecular Structures
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              10763
_journal_page_last               10774
_journal_paper_doi               10.1021/ja903156p
_journal_volume                  131
_journal_year                    2009
_chemical_formula_moiety         'C34 H48 N2 P2'
_chemical_formula_sum            'C34 H48 N2 P2'
_chemical_formula_weight         546.68
_chemical_name_systematic
; 
 1,3-Dimesityl-2-(2',3',4',5'-tetraethylphospholyl)-
 4,5-dimethyl-dihydro-1,3,2-diazaphosphole
  
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   9.2190(2)
_cell_length_b                   20.3427(5)
_cell_length_c                   34.1942(9)
_cell_measurement_reflns_used    6732
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      26
_cell_measurement_theta_min      1
_cell_volume                     6412.8(3)
_computing_cell_refinement       DENZO-SMN
_computing_data_collection       Collect
_computing_data_reduction        DENZO-SMN
_computing_molecular_graphics    XP
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker KappaAPEXII'
_diffrn_measurement_method       'rotation in omega, 1 deg.'
_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  0.1045
_diffrn_reflns_av_sigmaI/netI    0.1018
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       40
_diffrn_reflns_limit_l_min       -40
_diffrn_reflns_number            10474
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         3.21
_exptl_absorpt_coefficient_mu    0.160
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.132
_exptl_crystal_density_meas      ?
_exptl_crystal_description       plates
_exptl_crystal_F_000             2368
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.406
_refine_diff_density_min         -0.305
_refine_diff_density_rms         0.076
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.161
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     351
_refine_ls_number_reflns         5628
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.161
_refine_ls_R_factor_all          0.1608
_refine_ls_R_factor_gt           0.0978
_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^)+(0.0000P)^2^+25.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1581
_refine_ls_wR_factor_ref         0.1833
_reflns_number_gt                3538
_reflns_number_total             5628
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja903156p_si_002_2.cif
_cod_data_source_block           gudat138_compound_4c
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_database_code               4104754