Azo-containing tertiary phosphines: synthesis, reactivity and structural characterisation
Alder, Mark J.; Cross, Wendy I.; Flower, Kevin R.; Pritchard, Robin G.; Journal of the Chemical Society, Dalton Transactions  (1999) 2563–; doi:10.1039/a902885d

data_7027452
_publ_section_title
;
 Azo-containing tertiary phosphines: synthesis, reactivity and structural
 characterisation
;
_journal_issue                   15
_journal_name_full
'Journal of the Chemical Society, Dalton Transactions'
_journal_page_first              2563
_journal_paper_doi               10.1039/a902885d
_journal_year                    1999
_chemical_formula_sum            'C31 H25 N2 O2 P'
_chemical_formula_weight         488.50
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                97.27(2)
_cell_angle_beta                 99.19(2)
_cell_angle_gamma                108.358(16)
_cell_formula_units_Z            2
_cell_length_a                   8.2523(16)
_cell_length_b                   10.0350(19)
_cell_length_c                   16.500(5)
_cell_measurement_temperature    203(2)
_cell_volume                     1257.2(5)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      203(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0817
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            4412
_diffrn_reflns_theta_full        24.97
_diffrn_reflns_theta_max         24.97
_diffrn_reflns_theta_min         1.27
_exptl_absorpt_coefficient_mu    0.141
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.290
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       blocks
_exptl_crystal_F_000             512
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.442
_refine_diff_density_min         -0.177
_refine_diff_density_rms         0.046
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.925
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     425
_refine_ls_number_reflns         4412
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.925
_refine_ls_R_factor_all          0.1221
_refine_ls_R_factor_gt           0.0581
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0513P)^2^+0.9790P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1117
_refine_ls_wR_factor_ref         0.1417
_reflns_number_gt                2576
_reflns_number_total             4412
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            902885dsup1.cif
_cod_data_source_block           mald3b
_cod_depositor_comments
;
The following automatic conversions were performed:
'_atom_site_symetry_multiplicity' tag replaced with
'_atom_site_symmetry_multiplicity'.

Automatic conversion script
Id: cif_correct_tags 1440 2010-10-19 06:21:57Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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 
;
_cod_original_sg_symbol_H-M      P(-1)
_cod_database_code               7027452