2-Aminopyrimidinium dihydrogen phosphate monohydrate
Marouani, Houda; Al-Deyab, Salem S.; Rzaigui, Mohamed; Acta Crystallographica Section E 67 (2011) o970–o971; doi:10.1107/S1600536811010658

data_2229807
_publ_section_title
;
 2-Aminopyrimidinium dihydrogen phosphate monohydrate
;
_journal_coeditor_code           PV2399
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o970
_journal_page_last               o971
_journal_paper_doi               10.1107/S1600536811010658
_journal_volume                  67
_journal_year                    2011
_chemical_formula_iupac          'C4 H6 N3 +, H2 P O4 -, H2 O'
_chemical_formula_moiety         'C4 H6 N3 +, H2 O4 P -, H2 O'
_chemical_formula_sum            'C4 H10 N3 O5 P'
_chemical_formula_weight         211.12
_chemical_name_systematic
;
2-Aminopyrimidinium dihydrogen phosphate monohydrate
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_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_creation_method           SHELXL-97
_cell_angle_alpha                109.56(3)
_cell_angle_beta                 106.38(2)
_cell_angle_gamma                95.50(2)
_cell_formula_units_Z            2
_cell_length_a                   6.212(3)
_cell_length_b                   8.600(4)
_cell_length_c                   9.462(2)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      11
_cell_measurement_theta_min      9
_cell_volume                     446.8(3)
_computing_cell_refinement       'CAD-4 EXPRESS (Enraf--Nonius, 1994)'
_computing_data_collection       'CAD-4 EXPRESS (Enraf--Nonius, 1994)'
_computing_data_reduction        'XCAD4 (Harms & Wocadlo, 1995)'
_computing_molecular_graphics    'ORTEP-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS86 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device       '\k-geometry diffractometer'
_diffrn_measurement_device_type  'Enraf--Nonius CAD-4'
_diffrn_measurement_method       'non-profiled \w'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           AgK\a
_diffrn_radiation_wavelength     0.56083
_diffrn_reflns_av_R_equivalents  0.0177
_diffrn_reflns_av_sigmaI/netI    0.0296
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -5
_diffrn_reflns_number            6572
_diffrn_reflns_theta_full        27.97
_diffrn_reflns_theta_max         27.97
_diffrn_reflns_theta_min         2.03
_diffrn_standards_decay_%        3
_diffrn_standards_interval_time  120
_diffrn_standards_number         2
_exptl_absorpt_coefficient_mu    0.165
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.570
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             220
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.678
_refine_diff_density_min         -0.423
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     158
_refine_ls_number_reflns         4373
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.028
_refine_ls_R_factor_all          0.0673
_refine_ls_R_factor_gt           0.0417
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0745P)^2^+0.0087P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1111
_refine_ls_wR_factor_ref         0.1236
_reflns_number_gt                3189
_reflns_number_total             4373
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            pv2399.cif
_cod_data_source_block           I
_cod_original_cell_volume        446.7(3)
_cod_database_code               2229807
_cod_database_fobs_code          2229807