Diatomic PN ‒ trapped in a cyclo-tetraphosphazene
Hering, Christian; Schulz, Axel; Villinger, Alexander; Chemical Science 5 (2014) 1064–; doi:10.1039/c3sc52322e

data_1513675
_publ_section_title
;
 Diatomic PN -- trapped in a cyclo-tetraphosphazene
;
_journal_issue                   3
_journal_name_full               'Chemical Science'
_journal_page_first              1064
_journal_paper_doi               10.1039/c3sc52322e
_journal_volume                  5
_journal_year                    2014
_chemical_formula_moiety         'C20 H38 N6 P2 Si2 2+, 2(Cl4 Ga -), C H2 Cl2'
_chemical_formula_sum            'C21 H40 Cl10 Ga2 N6 P2 Si2'
_chemical_formula_weight         988.65
_chemical_name_systematic
;
1,3-bis[4-(N,N-dimethylamino)piridyl]-2,4-bis(trimethylsilyl)-cyclo-1,3-
diphospha-2,4-diazenium bis-tetrachlorogallate
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_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                 115.528(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.2251(7)
_cell_length_b                   16.1902(6)
_cell_length_c                   16.0587(7)
_cell_measurement_reflns_used    9988
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      49.269
_cell_measurement_theta_min      5.135
_cell_volume                     4275.8(3)
_computing_cell_refinement       'Bruker Apex V7.51A'
_computing_data_collection       'Bruker Apex V7.51A'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'ORTEP-3v2.01 (Farrugia, 1997)'
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker Apex Kappa II-CCD-diffractometer'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0318
_diffrn_reflns_av_sigmaI/netI    0.0260
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            40482
_diffrn_reflns_theta_full        24.50
_diffrn_reflns_theta_max         24.50
_diffrn_reflns_theta_min         1.24
_exptl_absorpt_coefficient_mu    2.040
_exptl_absorpt_correction_T_max  0.6296
_exptl_absorpt_correction_T_min  0.5354
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 2004)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.536
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1992
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.29
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.875
_refine_diff_density_min         -0.554
_refine_diff_density_rms         0.069
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.060
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     426
_refine_ls_number_reflns         7115
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.065
_refine_ls_R_factor_all          0.0510
_refine_ls_R_factor_gt           0.0350
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0468P)^2^+3.3440P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0875
_refine_ls_wR_factor_ref         0.0934
_reflns_number_gt                5688
_reflns_number_total             7115
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c3sc52322e.txt
_cod_data_source_block           av_ch49_(Me3SiNPdmap)2_2GaCl4
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               1513675