A Conformational Study of Phospha(III)- and Phospha(V)-guanidine Compounds
Natalie E. Mansfield; Joanna Grundy; Martyn P. Coles; Anthony G. Avent; Peter B. Hitchcock; Journal of the American Chemical Society 128 (2006) 13879–13893; doi:10.1021/ja064212t

data_4111002
_publ_section_title
;
 A Conformational Study of Phospha(III)- and Phospha(V)-guanidine
 Compounds
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              13879
_journal_page_last               13893
_journal_paper_doi               10.1021/ja064212t
_journal_volume                  128
_journal_year                    2006
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C19 H37 N2 P S'
_chemical_formula_sum            'C19 H37 N2 P S'
_chemical_formula_weight         356.54
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.3
_audit_creation_date             2005-06-17T14:44:16-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                77.228(2)
_cell_angle_beta                 77.769(2)
_cell_angle_gamma                76.842(2)
_cell_formula_units_Z            2
_cell_length_a                   8.9912(3)
_cell_length_b                   10.0100(3)
_cell_length_c                   12.4892(5)
_cell_measurement_reflns_used    9414
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      26.022
_cell_measurement_theta_min      3.395
_cell_measurement_wavelength     0.71073
_cell_volume                     1051.90(6)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.99
_diffrn_measured_fraction_theta_max 0.99
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'CCD rotation images, thick slices'
_diffrn_orient_matrix_type       'by Nonius Collect from scalepack cell'
_diffrn_orient_matrix_UB_11      0.973012E-1
_diffrn_orient_matrix_UB_12      -0.570955E-1
_diffrn_orient_matrix_UB_13      0.251397E-1
_diffrn_orient_matrix_UB_21      0.506946E-1
_diffrn_orient_matrix_UB_22      -0.441E-4
_diffrn_orient_matrix_UB_23      -0.794136E-1
_diffrn_orient_matrix_UB_31      0.373782E-1
_diffrn_orient_matrix_UB_32      0.873192E-1
_diffrn_orient_matrix_UB_33      -0.16826E-2
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0491
_diffrn_reflns_av_unetI/netI     0.0388
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            14932
_diffrn_reflns_theta_full        26.1
_diffrn_reflns_theta_max         26.1
_diffrn_reflns_theta_min         3.46
_diffrn_source                   'Enraf Nonius FR590'
_exptl_absorpt_coefficient_mu    0.232
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.126
_exptl_crystal_description       prism
_exptl_crystal_F_000             392
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.253
_refine_diff_density_min         -0.214
_refine_diff_density_rms         0.041
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.016
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     212
_refine_ls_number_reflns         4138
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.016
_refine_ls_R_factor_all          0.0502
_refine_ls_R_factor_gt           0.0373
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0318P)^2^+0.4635P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0829
_refine_ls_wR_factor_ref         0.0891
_reflns_number_gt                3401
_reflns_number_total             4138
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja064212tsi20060615_043001.cif
_cod_data_source_block           jun1705
_cod_database_code               4111002