Low-Valent Chemistry: An Alternative Approach to Phosphorus-Containing Oligomers.
Kosnik, Stephanie C.; Farrar, Gregory J.; Norton, Erin L.; Cooper, Benjamin F. T.; Ellis, Bobby D.; Macdonald, Charles L. B.; Inorganic chemistry  (2014) 141201074418004–; doi:10.1021/ic502229w

data_4341815
_publ_section_title
;
 Low-Valent Chemistry: An Alternative Approach to Phosphorus-Containing
 Oligomers.
;
_journal_name_full               'Inorganic chemistry'
_journal_page_first              141201074418004
_journal_paper_doi               10.1021/ic502229w
_journal_year                    2014
_chemical_formula_moiety         'C48 H40 Ag Br N2 P6'
_chemical_formula_sum            'C48 H40 Ag Br N2 P6'
_chemical_formula_weight         1018.42
_space_group_crystal_system      monoclinic
_space_group_IT_number           5
_space_group_name_Hall           'C 2y'
_space_group_name_H-M_alt        'C 1 2 1'
_symmetry_space_group_name_Hall  'C 2y'
_symmetry_space_group_name_H-M   'C 1 2 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/6
_cell_angle_alpha                90
_cell_angle_beta                 124.1150(10)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   20.9310(9)
_cell_length_b                   10.3138(4)
_cell_length_c                   12.3702(5)
_cell_measurement_reflns_used    9901
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      26.34
_cell_measurement_theta_min      3.30
_cell_volume                     2210.91(16)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/6 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0722
_diffrn_reflns_av_unetI/netI     0.0472
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            26616
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.383
_diffrn_reflns_theta_min         3.296
_exptl_absorpt_coefficient_mu    1.613
_exptl_absorpt_correction_T_max  0.973
_exptl_absorpt_correction_T_min  0.836
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS; Bruker,2012'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.530
_exptl_crystal_description       Prism
_exptl_crystal_F_000             1028
_exptl_crystal_size_max          0.193
_exptl_crystal_size_mid          0.097
_exptl_crystal_size_min          0.017
_refine_diff_density_max         0.384
_refine_diff_density_min         -0.698
_refine_diff_density_rms         0.070
_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.247(18)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.031
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     264
_refine_ls_number_reflns         4464
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.031
_refine_ls_R_factor_all          0.0392
_refine_ls_R_factor_gt           0.0323
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0327P)^2^+0.7809P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0669
_refine_ls_wR_factor_ref         0.0697
_reflns_Friedel_coverage         0.891
_reflns_Friedel_fraction_full    0.999
_reflns_Friedel_fraction_max     0.999
_reflns_number_gt                4097
_reflns_number_total             4464
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ic502229w_si_003.cif
_cod_data_source_block           shelx
_cod_database_code               4341815
_shelxl_version_number           2014/6
_shelx_res_checksum              14269
_shelx_hkl_checksum              43664