<small>D</small>-({-})-2-Azaniumyl-2-(4-hydroxyphenyl)acetate: an orthorhombic polymorph
Zhang, Xiaohui; Yu, Yuzhen; Li, Zhanjun; Li, Wen; IUCrData 1 (2016) x160768–; doi:10.1107/S2414314616007689

data_1543347
_publ_section_title
;
 <small>D</small>-({-})-2-Azaniumyl-2-(4-hydroxyphenyl)acetate: an
 orthorhombic polymorph
;
_journal_coeditor_code           SJ4032
_journal_issue                   5
_journal_name_full               IUCrData
_journal_page_first              x160768
_journal_paper_doi               10.1107/S2414314616007689
_journal_volume                  1
_journal_year                    2016
_chemical_formula_iupac          'C8 H9 N O3'
_chemical_formula_moiety         'C8 H9 N O3'
_chemical_formula_sum            'C8 H9 N O3'
_chemical_formula_weight         167.16
_chemical_name_systematic
;
<i>D</i>-(-)-2-Azaniumyl-2-(4-hydroxyphenyl)acetate
;
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_method
;
Olex2 1.2
(compiled 2016.02.19 svn.r3266 for OlexSys, GUI svn.r5155)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   5.83624(17)
_cell_length_b                   8.4245(3)
_cell_length_c                   17.0381(5)
_cell_measurement_reflns_used    2415
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      70.7890
_cell_measurement_theta_min      5.1900
_cell_volume                     837.72(5)
_computing_cell_refinement
;
<i>CrysAlis PRO</i> (Agilent, 2012)
;
_computing_data_collection
;
<i>CrysAlis PRO</i> (Agilent, 2012)
;
_computing_data_reduction
;
<i>CrysAlis PRO</i> (Agilent, 2012)
;
_computing_molecular_graphics
;
<i>OLEX2</i> (Dolomanov <i>et al.</i>,  2009)
;
_computing_publication_material
;
<i>OLEX2</i> (Dolomanov <i>et al.</i>,  2009)
;
_computing_structure_refinement
;
SHELXL2014 (Sheldrick, 2015)
;
_computing_structure_solution
;
SHELXS97 (Sheldrick, 2008)
;
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 16.2312
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'Agilent Xcalibur Eos Gemini'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0307
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            3647
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         70.932
_diffrn_reflns_theta_min         5.192
_exptl_absorpt_coefficient_mu    0.864
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.86061
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
(<i>CrysAlis PRO</i>; Agilent, 2012)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.325
_exptl_crystal_description       block
_exptl_crystal_F_000             352
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.335
_refine_diff_density_min         -0.165
_refine_ls_abs_structure_details
;
Flack <i>x</i>
determined using 616 quotients
[(<i>I</i>^+^)-(<i>I</i>^-^)]/[(<i>I</i>^+^)+(<i>I</i>^-^)]
(Parsons <i>et al.</i>, 2013)
;
_refine_ls_abs_structure_Flack   0.03(11)
_refine_ls_extinction_coef       0.076(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method
;
SHELXL2014 (Sheldrick, 2015)
;
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     112
_refine_ls_number_reflns         1613
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0356
_refine_ls_R_factor_gt           0.0333
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0615P)^2^+0.1107P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0941
_refine_ls_wR_factor_ref         0.0960
_reflns_number_gt                1570
_reflns_number_total             1613
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            sj4032sup1.cif
_cod_data_source_block           I
_cod_original_cell_volume        837.72(4)
_cod_database_code               1543347
_cod_database_fobs_code          1543347
_shelx_hkl_checksum              150
_shelx_res_checksum              35349