The formation of paracetamol (acetaminophen) adducts with hydrogen-bond acceptors
Oswald, Iain D. H.; Allan, David R.; McGregor, Pamela A.; Motherwell, W. D. Samuel; Parsons, Simon; Pulham, Colin R.; Acta Crystallographica Section B 58 (2002) 1057–1066; doi:10.1107/S0108768102015987

data_2103462
_publ_section_title
;
 The formation of paracetamol (acetaminophen) adducts with
 hydrogen-bond acceptors
;
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              1057
_journal_page_last               1066
_journal_paper_doi               10.1107/S0108768102015987
_journal_volume                  58
_journal_year                    2002
_chemical_formula_moiety         '2[C8 H9 O2 N] , [C4 H8 O2]'
_chemical_formula_sum            'C10 H13 N O3'
_chemical_formula_weight         195.21
_chemical_name_common            'Paracetamol hemi-dioxane'
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_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                 91.51(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   12.421(5)
_cell_length_b                   12.056(4)
_cell_length_c                   13.396(3)
_cell_measurement_reflns_used    80
_cell_measurement_temperature    220(2)
_cell_measurement_theta_max      22
_cell_measurement_theta_min      20
_cell_volume                     2005.3(11)
_computing_cell_refinement       'Stoe DIF4'
_computing_data_collection       'Stoe DIF4'
_computing_data_reduction        'Stoe REDU4'
_computing_molecular_graphics    SHELXTL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      220(2)
_diffrn_measured_fraction_theta_full 0.924
_diffrn_measured_fraction_theta_max 0.924
_diffrn_measurement_method       Omega-theta
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0532
_diffrn_reflns_av_sigmaI/netI    0.0296
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            4865
_diffrn_reflns_theta_full        69.79
_diffrn_reflns_theta_max         69.79
_diffrn_reflns_theta_min         3.56
_diffrn_standards_decay_%        10.9
_diffrn_standards_interval_time  60
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.795
_exptl_absorpt_correction_T_max  0.826
_exptl_absorpt_correction_T_min  0.602
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   Psi-scans
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.293
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Lath
_exptl_crystal_F_000             832
_exptl_crystal_size_max          0.78
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.503
_refine_diff_density_min         -0.260
_refine_ls_extinction_coef       0.0019(6)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.078
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     285
_refine_ls_number_reflns         3499
_refine_ls_number_restraints     60
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0942
_refine_ls_R_factor_gt           0.0702
_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^)+(0.1250P)^2^+1.1494P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2024
_refine_ls_wR_factor_ref         0.2243
_reflns_number_gt                2508
_reflns_number_total             3499
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            an0622.cif
_cod_data_source_block           parody
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Empirical' changed to
'empirical' according to
'/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Empirical'
changed to 'empirical' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        2005.4(11)
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               2103462
_cod_database_fobs_code          2103462