Molecularly nonstoichiometric crystals in phosphorus compounds.
Chakravarty, Manab; Suresh, R. Rama; Swamy, K. C. Kumara; Inorganic chemistry 46 (2007) 9819–9826; doi:10.1021/ic701173x

data_4339641
_publ_section_title
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 Molecularly nonstoichiometric crystals in phosphorus compounds.
;
_journal_issue                   23
_journal_name_full               'Inorganic chemistry'
_journal_page_first              9819
_journal_page_last               9826
_journal_paper_doi               10.1021/ic701173x
_journal_volume                  46
_journal_year                    2007
_chemical_formula_sum            'C25 H36 N O2.7 P'
_chemical_formula_weight         424.72
_space_group_IT_number           62
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_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            4
_cell_length_a                   13.4052(9)
_cell_length_b                   23.0540(16)
_cell_length_c                   7.9639(6)
_cell_measurement_reflns_used    5592
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      23.70
_cell_measurement_theta_min      2.71
_cell_volume                     2461.2(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0564
_diffrn_reflns_av_sigmaI/netI    0.0265
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            22021
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         1.77
_exptl_absorpt_coefficient_mu    0.134
_exptl_absorpt_correction_T_max  0.987
_exptl_absorpt_correction_T_min  0.974
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'Bruker AXS SADABS program'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.146
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needles
_exptl_crystal_F_000             919
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.336
_refine_diff_density_min         -0.166
_refine_diff_density_rms         0.047
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.078
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     157
_refine_ls_number_reflns         2229
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.078
_refine_ls_R_factor_all          0.0866
_refine_ls_R_factor_gt           0.0653
_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^)+(0.0849P)^2^+0.8870P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1559
_refine_ls_wR_factor_ref         0.1673
_reflns_number_gt                1673
_reflns_number_total             2229
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic701173x.cif
_cod_data_source_block           crystal11+13
_cod_original_sg_symbol_H-M      Pnma
_cod_original_formula_sum        'C25 H36 N O2.70 P'
_cod_database_code               4339641