Ring-Opening Polymerization of Cyclic Phosphonates: Access to Inorganic Polymers with a P<sup>V</sup>-O Main Chain.
Arz, Marius I.; Annibale, Vincent T.; Kelly, Nicole L.; Hanna, John V.; Manners, Ian; Journal of the American Chemical Society 141 (2019) 2894–2899; doi:10.1021/jacs.8b13435

data_4128479
_publ_section_title
;
 Ring-Opening Polymerization of Cyclic Phosphonates: Access to Inorganic
 Polymers with a P<sup>V</sup>-O Main Chain.
;
_journal_issue                   7
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              2894
_journal_page_last               2899
_journal_paper_doi               10.1021/jacs.8b13435
_journal_volume                  141
_journal_year                    2019
_chemical_formula_moiety         'C36 H51 O6 P3'
_chemical_formula_sum            'C36 H51 O6 P3'
_chemical_formula_weight         672.67
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2018-08-21
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_cell_angle_alpha                90
_cell_angle_beta                 97.4240(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   11.0540(2)
_cell_length_b                   24.3980(4)
_cell_length_c                   13.4029(2)
_cell_measurement_reflns_used    9256
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.52
_cell_measurement_theta_min      2.27
_cell_volume                     3584.40(10)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      100.0
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0382
_diffrn_reflns_av_unetI/netI     0.0349
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       31
_diffrn_reflns_limit_k_min       -31
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            33945
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.541
_diffrn_reflns_theta_min         1.745
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.209
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6223
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.0609 before and 0.0433 after correction. The Ratio of minimum to maximum transmission is 0.8346. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.247
_exptl_crystal_description       block
_exptl_crystal_F_000             1440
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.501
_refine_diff_density_min         -0.336
_refine_diff_density_rms         0.056
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.016
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     421
_refine_ls_number_reflns         8268
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.016
_refine_ls_R_factor_all          0.0515
_refine_ls_R_factor_gt           0.0368
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0444P)^2^+1.9845P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0881
_refine_ls_wR_factor_ref         0.0959
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6723
_reflns_number_total             8268
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja8b13435_si_002.cif
_cod_data_source_block           1tBuAr'3
_cod_database_code               4128479
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.963
_shelx_estimated_absorpt_t_min   0.954
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C3(H3), C17(H17), C27(H27), C5(H5), C15(H15), C29(H29)
2.b Idealised Me refined as rotating group:
 C7(H7A,H7B,H7C), C12(H12A,H12B,H12C), C24(H24A,H24B,H24C), C31(H31A,H31B,
 H31C), C36(H36A,H36B,H36C), C11(H11A,H11B,H11C), C19(H19A,H19B,H19C), C9(H9A,
 H9B,H9C), C21(H21A,H21B,H21C), C10(H10A,H10B,H10C), C23(H23A,H23B,H23C),
 C33(H33A,H33B,H33C), C22(H22A,H22B,H22C), C35(H35A,H35B,H35C), C34(H34A,H34B,
 H34C)
;
_shelx_res_checksum              27865
_shelx_hkl_checksum              58688
_olex2_submission_special_instructions 'No special instructions were received'