5-Amino-3<i>H</i>-isobenzofuran-1-one (5-aminophthalide)
Yathirajan, Hemmige S.; Nagaraj, Basavegowda; Gaonkar, Santhosh L.; Narasegowda, Rajenahally S.; Prabhuswamy, Basappa; Bolte, Michael; Acta Crystallographica Section E 61 (2005) o343–o344; doi:10.1107/S1600536805000851

data_2205043
_publ_section_title
;
 5-Amino-3<i>H</i>-isobenzofuran-1-one (5-aminophthalide)
;
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o343
_journal_page_last               o344
_journal_paper_doi               10.1107/S1600536805000851
_journal_volume                  61
_journal_year                    2005
_chemical_formula_iupac          'C8 H7 N O2'
_chemical_formula_moiety         'C8 H7 N O2'
_chemical_formula_sum            'C8 H7 N O2'
_chemical_formula_weight         149.15
_chemical_name_common            5-aminophthalide
_chemical_name_systematic
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5-Amino-3H-isobenzofuran-1-one
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_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
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   4.6858(7)
_cell_length_b                   8.2573(9)
_cell_length_c                   17.627(2)
_cell_measurement_reflns_used    12413
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.7
_cell_measurement_theta_min      4.0
_cell_volume                     682.02(15)
_computing_cell_refinement       X-Area
_computing_data_collection       'X-Area (Stoe & Cie, 2001)'
_computing_data_reduction        X-Area
_computing_molecular_graphics    'XP in SHELXTL-Plus (Sheldrick, 1991)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'STOE IPDS-II two-circle diffractometer'
_diffrn_measurement_method       \w
_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  0.0503
_diffrn_reflns_av_sigmaI/netI    0.0204
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            8516
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.66
_diffrn_reflns_theta_min         4.26
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.106
_exptl_absorpt_correction_T_max  0.9628
_exptl_absorpt_correction_T_min  0.9568
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            'light brown'
_exptl_crystal_density_diffrn    1.453
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             312
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.38
_exptl_crystal_size_min          0.36
_refine_diff_density_max         0.117
_refine_diff_density_min         -0.134
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   4.2(15)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     108
_refine_ls_number_reflns         789
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.044
_refine_ls_R_factor_all          0.0317
_refine_ls_R_factor_gt           0.0264
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0472P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0652
_refine_ls_wR_factor_ref         0.0673
_reflns_number_gt                676
_reflns_number_total             789
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            cv6446.cif
_cod_data_source_block           I
_cod_depositor_comments
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The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
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 'Orthorhombic' changed to
'orthorhombic' 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_sg_symbol_H-M      'P 21 21 2'
_cod_database_code               2205043