Phosphonoacetic acid as a building block in supramolecular chemistry: salts with organic polyamines
Bowes, Katharine F.; Ferguson, George; Lough, Alan J.; Zakaria, Choudhury M.; Glidewell, Christopher; Acta Crystallographica Section B 59 (2003) 87–99; doi:10.1107/S010876810201858X

data_2103804
_publ_section_title
;
 Phosphonoacetic acid as a building block in supramolecular chemistry:
 salts with organic polyamines
;
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              87
_journal_page_last               99
_journal_paper_doi               10.1107/S010876810201858X
_journal_volume                  59
_journal_year                    2003
_chemical_formula_moiety         'C6 H12 N2, C2 H5 O5 P'
_chemical_formula_sum            'C8 H17 N2 O5 P'
_chemical_formula_weight         252.21
_chemical_name_systematic
;
1,4-Diazabicyclo[2.2.2]octane--phosphonoacetic acid (1/1)
;
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   20.3011(17)
_cell_length_b                   6.7692(5)
_cell_length_c                   8.0158(6)
_cell_measurement_reflns_used    1987
_cell_measurement_temperature    150.0(10)
_cell_measurement_theta_max      25.49
_cell_measurement_theta_min      3.62
_cell_volume                     1101.55(15)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'Kappa-CCD server software (Nonius, 1997)'
_computing_data_reduction        'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'PLATON (Spek, 2002)'
_computing_publication_material
'SHELXL-97 (Sheldrick, 1997a) and PRPKAPPA (Ferguson, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997a)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997b)'
_diffrn_ambient_temperature      150.0(10)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  Kappa-CCD
_diffrn_measurement_method       '\f scans, and \w scans with \k offsets'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed X-ray tube'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.119
_diffrn_reflns_av_sigmaI/netI    0.1126
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            7195
_diffrn_reflns_theta_full        25.49
_diffrn_reflns_theta_max         25.49
_diffrn_reflns_theta_min         3.62
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.259
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.521
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             536
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.301
_refine_diff_density_min         -0.525
_refine_ls_abs_structure_details 'Flack (1983); 884 Friedel pairs'
_refine_ls_abs_structure_Flack   0.1(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.024
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     148
_refine_ls_number_reflns         1987
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.0834
_refine_ls_R_factor_gt           0.0550
_refine_ls_shift/su_max          0.016
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0527P)^2^+0.0408P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1239
_refine_ls_wR_factor_ref         0.1409
_reflns_number_gt                1462
_reflns_number_total             1987
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            bm0057.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P ca21'
_cod_database_code               2103804
_cod_database_fobs_code          2103804