Refinement of the crystal structure of N-4-nitrophenylphosphoramidic acid dimethyl ester, (CH~3~O)~2~PONHC~6~H~4~NO~2~, at 120 K
K. Gholivand; Z. Shariatinia; M. Pourayoubi; Zeitschrift für Kristallographie - New Crystal Structures 220 (2005) 65–66; doi:

data_8101696
_publ_section_title
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Refinement of the crystal structure of N-4-nitrophenylphosphoramidic 
acid dimethyl ester, (CH~3~O)~2~PONHC~6~H~4~NO~2~, at 120 K
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_journal_issue                   1
_journal_name_full
'Zeitschrift f\"ur Kristallographie - New Crystal Structures'
_journal_page_first              65
_journal_page_last               66
_journal_volume                  220
_journal_year                    2005
_chemical_formula_moiety         'C8 H11 N2 O5 P'
_chemical_formula_sum            'C8 H11 N2 O5 P'
_chemical_formula_weight         246.16
_chemical_name_systematic
; 
N-4-Nitrophenyl phosphoramidic acid dimethyl ester
;
_space_group_IT_number           60
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2n 2ab'
_symmetry_space_group_name_H-M   'P b c n'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   24.714(5)
_cell_length_b                   7.3303(14)
_cell_length_c                   11.980(2)
_cell_measurement_reflns_used    784
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      60
_cell_measurement_theta_min      4
_cell_volume                     2170.3(7)
_computing_cell_refinement       'SAINTPlus (Bruker, 1998a)'
_computing_data_collection       'SMART (Bruker, 1998b)'
_computing_data_reduction        'SAINTPlus (Bruker, 1998a)'
_computing_molecular_graphics    'SHELXTL ver. 5.1 (Sheldrick, 1998b)'
_computing_publication_material  'SHELXTL ver. 5.1 (Sheldrick, 1998b)'
_computing_structure_refinement  'SHELXTL ver. 5.1 (Sheldrick, 1998b)'
_computing_structure_solution    'SHELXTL ver. 5.1 (Sheldrick, 1998b)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker SMART 1000 CCD'
_diffrn_measurement_method       phi/omega
_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  0.0346
_diffrn_reflns_av_sigmaI/netI    0.0252
_diffrn_reflns_limit_h_max       34
_diffrn_reflns_limit_h_min       -34
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            16467
_diffrn_reflns_theta_full        29.99
_diffrn_reflns_theta_max         29.99
_diffrn_reflns_theta_min         1.65
_exptl_absorpt_coefficient_mu    0.262
_exptl_absorpt_correction_T_max  0.869
_exptl_absorpt_correction_T_min  0.735
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1998a)'
_exptl_crystal_colour            light-yellow
_exptl_crystal_density_diffrn    1.507
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1024
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.532
_refine_diff_density_min         -0.283
_refine_diff_density_rms         0.074
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.984
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     147
_refine_ls_number_reflns         3153
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.984
_refine_ls_R_factor_all          0.0705
_refine_ls_R_factor_gt           0.0537
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0500P)^2^+2.5000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1224
_refine_ls_wR_factor_ref         0.1284
_reflns_number_gt                2254
_reflns_number_total             3153
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            1267-1426.cff
_cod_data_source_block           morno
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' tag value 'orthorombic' was replaced with
'orthorhombic' value.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
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_cod_original_sg_symbol_H-M      Pbcn
_cod_database_code               8101696