Polymorphs of <i>p</i>-nitrophenol as studied by variable-temperature X-ray diffraction and calorimetry: comparison with <i>m</i>-nitrophenol
Wójcik, Grażyna; Mossakowska, Izabela; Acta Crystallographica Section B 62 (2006) 143–152; doi:10.1107/S010876810503418X

data_2100387
_publ_section_title
;
 Polymorphs of <i>p</i>-nitrophenol as studied by variable-temperature
 X-ray diffraction and calorimetry: comparison with
 <i>m</i>-nitrophenol
;
_journal_coeditor_code           NS0011
_journal_date_accepted           2005-10-21
_journal_date_recd_electronic    2005-07-22
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              143
_journal_page_last               152
_journal_paper_category          FA
_journal_paper_doi               10.1107/S010876810503418X
_journal_volume                  62
_journal_year                    2006
_chemical_formula_moiety         'C6 H5 N O3'
_chemical_formula_sum            'C6 H5 N O3'
_chemical_formula_weight         139.11
_chemical_melting_point          384
_chemical_name_common            para-nitrophenol
_chemical_name_systematic
;
 4-nitrophenol
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 93.45(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   3.8310(10)
_cell_length_b                   11.093(2)
_cell_length_c                   14.835(3)
_cell_measurement_reflns_used    1153
_cell_measurement_temperature    375(2)
_cell_measurement_theta_max      22.87
_cell_measurement_theta_min      3.56
_cell_volume                     629.3(2)
_computing_cell_refinement       'KUMA KM4CCD software, 1999'
_computing_data_collection       'KUMA KM4CCD software, 1999'
_computing_data_reduction        'KUMA KM4CCD software, 1999'
_computing_molecular_graphics    'ORTEP-3 (Farrugia, 1997)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      375(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.940
_diffrn_measurement_device_type  'KUMA Diffraction KM4CCD'
_diffrn_measurement_method       'omega scan'
_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  0.0614
_diffrn_reflns_av_sigmaI/netI    0.0357
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -2
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            4985
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         31.37
_diffrn_reflns_theta_min         5.43
_exptl_absorpt_coefficient_mu    0.120
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.468
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             288
_exptl_crystal_size_max          0.98
_exptl_crystal_size_mid          0.53
_exptl_crystal_size_min          0.45
_refine_diff_density_max         0.255
_refine_diff_density_min         -0.215
_refine_ls_extinction_coef       0.05(3)
_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   1.158
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     112
_refine_ls_number_reflns         1955
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.158
_refine_ls_R_factor_all          0.1070
_refine_ls_R_factor_gt           0.0776
_refine_ls_shift/su_max          0.022
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1467P)^2^+0.0501P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2549
_refine_ls_wR_factor_ref         0.2937
_reflns_number_gt                1165
_reflns_number_total             1955
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ns0011.cif
_cod_data_source_block           pnif3754
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '384K' was changed to '384' - the
value should be numeric and without a unit designator.

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 '384K' was changed to '384' - the
value should be numeric and without a unit designator.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               2100387