Pendant Cyclodicarbaphosphazatriene-Containing Monomers and Polymers: Synthesis, Crystal Structures and Polymerization Behavior of [NC(NMe2)]2[NP(O-C6H4-p-C6H4-p-CHCH2)(X)], X = Cl, OCH2CF3, OC6H5, OC6H4-m-CH3, OC6H4-p-Br
Vadapalli Chandrasekhar; Arunachalampillai Athimoolam; Narreddula Dastagiri Reddy; Selvarajan Nagendran; Alexander Steiner; Stefano Zacchini; Raymond Butcher; Inorganic Chemistry 42 (2003) 51–59; doi:10.1021/ic025940u

data_4312896
_publ_section_title
;
 Pendant Cyclodicarbaphosphazatriene-Containing Monomers and Polymers:
 Synthesis, Crystal Structures and Polymerization Behavior of
 [NC(NMe2)]2[NP(O-C6H4-p-C6H4-p-CHCH2)(X)], X = Cl, OCH2CF3, OC6H5,
 OC6H4-m-CH3, OC6H4-p-Br
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              51
_journal_page_last               59
_journal_paper_doi               10.1021/ic025940u
_journal_volume                  42
_journal_year                    2003
_chemical_formula_sum            'C27 H30 N5 O2 P'
_chemical_formula_weight         487.52
_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-97
_cell_angle_alpha                90.00
_cell_angle_beta                 93.10(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   21.473(4)
_cell_length_b                   8.8677(18)
_cell_length_c                   13.118(3)
_cell_measurement_temperature    293(2)
_cell_volume                     2494.2(9)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.900
_diffrn_measured_fraction_theta_max 0.900
_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  0.0255
_diffrn_reflns_av_sigmaI/netI    0.0312
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            14054
_diffrn_reflns_theta_full        28.25
_diffrn_reflns_theta_max         28.25
_diffrn_reflns_theta_min         1.90
_exptl_absorpt_coefficient_mu    0.145
_exptl_crystal_density_diffrn    1.298
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1032
_refine_diff_density_max         1.650
_refine_diff_density_min         -0.520
_refine_diff_density_rms         0.083
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.078
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     321
_refine_ls_number_reflns         5560
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.078
_refine_ls_R_factor_all          0.0905
_refine_ls_R_factor_gt           0.0770
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1365P)^2^+2.2543P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2218
_refine_ls_wR_factor_ref         0.2359
_reflns_number_gt                4423
_reflns_number_total             5560
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic025940u-2_s2_4.cif
_cod_data_source_block           compd6
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 

2020-10-02
Z value and formula fixed to values more according to usual
chemical conventions.                 miguel
;
_cod_original_formula_sum        'C21.60 H24 N4 O1.60 P0.80'
_cod_original_formula_units_Z    5
_cod_original_formula_weight     390.02
_cod_database_code               4312896