Ammonium hydrogen (<i>RS</i>)-[(5-methyl-2-oxo-1,3-oxazolidin-3-yl)methyl]phosphonate
Todorov, Petar; Naydenova, Emilia; Nikolova, Rositsa P.; Shivachev, Boris L.; Acta Crystallographica Section E 66 (2010) o6–; doi:10.1107/S1600536809050338

data_2224683
_publ_section_title
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 Ammonium hydrogen
 (<i>RS</i>)-[(5-methyl-2-oxo-1,3-oxazolidin-3-yl)methyl]phosphonate
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_journal_coeditor_code           IS2491
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o6
_journal_paper_doi               10.1107/S1600536809050338
_journal_volume                  66
_journal_year                    2010
_chemical_formula_iupac          'N H4 +, C5 H9 N O5 P -'
_chemical_formula_moiety         'H4 N +, C5 H9 N O5 P -'
_chemical_formula_sum            'C5 H13 N2 O5 P'
_chemical_formula_weight         212.14
_chemical_name_systematic
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Ammonium hydrogen
(<i>R</i><i>S</i>)-[(5-methyl-2-oxo-1,3-oxazolidin-3-yl)methyl]phosphonate
;
_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                70.76(2)
_cell_angle_beta                 70.658(18)
_cell_angle_gamma                89.363(16)
_cell_formula_units_Z            2
_cell_length_a                   6.471(3)
_cell_length_b                   8.801(3)
_cell_length_c                   9.427(4)
_cell_measurement_reflns_used    22
_cell_measurement_temperature    290(2)
_cell_measurement_theta_max      19.90
_cell_measurement_theta_min      18.22
_cell_volume                     475.4(4)
_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) and Mercury (Macrae <i>et al.</i>, 2006)'
_computing_publication_material  'WinGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      290(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device       '\k-geometry diffractometer'
_diffrn_measurement_device_type  'Enraf--Nonius CAD-4'
_diffrn_measurement_method       '\w/2\q 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  0.0267
_diffrn_reflns_av_sigmaI/netI    0.0328
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            3673
_diffrn_reflns_theta_full        25.96
_diffrn_reflns_theta_max         25.96
_diffrn_reflns_theta_min         2.44
_diffrn_standards_decay_%        -1
_diffrn_standards_interval_time  120
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.285
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.482
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             224
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.21
_refine_diff_density_max         0.244
_refine_diff_density_min         -0.330
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     159
_refine_ls_number_reflns         1855
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0436
_refine_ls_R_factor_gt           0.0347
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0517P)^2^+0.1432P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0925
_refine_ls_wR_factor_ref         0.0969
_reflns_number_gt                1606
_reflns_number_total             1855
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            is2491.cif
_cod_data_source_block           I
_cod_depositor_comments
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The following automatic conversions were performed:

'_chemical_melting_point' value 'not measured' was changed to '?' -
the value is undefined or not given.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 

The following automatic conversions were performed:

'_chemical_melting_point' value 'not measured' was changed to '?' -
the value is undefined or not given.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        475.4(3)
_cod_database_code               2224683
_cod_database_fobs_code          2224683