Bis(phospha-adamantyl)alkanes: a new class of very bulky diphosphines
Gee, Victoria; Guy Orpen, A.; Phetmung, Hirihattaya; Pringle, Paul G.; Pugh, Robert I.; Chemical Communications  (1999) 901–; doi:10.1039/a902434d

data_7110550
_publ_section_title
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 Bis(phospha-adamantyl)alkanes: a new class of very bulky diphosphines
;
_journal_issue                   10
_journal_name_full               'Chemical Communications'
_journal_page_first              901
_journal_paper_doi               10.1039/a902434d
_journal_year                    1999
_chemical_formula_structural     PdCl2(CMe3)4O2(CH2)2P(CH2)3P(CMe)4O2(CH2)2
_chemical_formula_sum            'C23 H38 Cl2 O6 P2 Pd'
_chemical_formula_weight         649.77
_chemical_name_systematic
;
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL
_cell_angle_alpha                90.00
_cell_angle_beta                 103.48(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.402(5)
_cell_length_b                   14.735(3)
_cell_length_c                   14.150(3)
_cell_measurement_reflns_used    6224
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      50
_cell_measurement_theta_min      5
_cell_volume                     2717.3(13)
_computing_cell_refinement       'Siemens XSCANS'
_computing_data_collection       'Siemens XSCANS'
_computing_data_reduction        'Siemens SHELXTL'
_computing_molecular_graphics    'Siemens SHELXTL'
_computing_publication_material  'Siemens SHELXTL'
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measurement_device       'Siemens P4'
_diffrn_measurement_method       '\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  0.0546
_diffrn_reflns_av_sigmaI/netI    0.0474
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            17239
_diffrn_reflns_theta_max         27.53
_diffrn_reflns_theta_min         1.56
_diffrn_standards_decay_%        none
_exptl_absorpt_coefficient_mu    1.033
_exptl_absorpt_correction_T_max  0.813
_exptl_absorpt_correction_T_min  0.696
_exptl_absorpt_correction_type   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.588
_exptl_crystal_density_meas      ?
_exptl_crystal_description       block
_exptl_crystal_F_000             1336
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.861
_refine_diff_density_min         -0.539
_refine_diff_density_rms         0.119
_refine_ls_extinction_coef       0.0004(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_all   1.127
_refine_ls_goodness_of_fit_obs   1.120
_refine_ls_hydrogen_treatment    'see text'
_refine_ls_matrix_type           full
_refine_ls_number_parameters     316
_refine_ls_number_reflns         6219
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.131
_refine_ls_restrained_S_obs      1.120
_refine_ls_R_factor_all          0.0832
_refine_ls_R_factor_obs          0.0595
_refine_ls_shift/esd_max         0.006
_refine_ls_shift/esd_mean        0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0572P)^2^+10.0599P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1596
_refine_ls_wR_factor_obs         0.1387
_reflns_number_observed          4845
_reflns_number_total             6224
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            902434dsup1.cif
_cod_data_source_block           2a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' 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 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0572P)^2^+10.0599P] where P=(Fo^2^+2Fc^2^)/3'
was changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0572P)^2^+10.0599P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7110550