3,5-Diiodo-4-oxo-1,4-dihydropyridine-1-acetic acid
Cox, Philip J.; Hickey, Geraldine; Acta Crystallographica Section E 57 (2001) o495–o497; doi:10.1107/S160053680100722X

data_2200325
_publ_section_title
;
 3,5-Diiodo-4-oxo-1,4-dihydropyridine-1-acetic acid
;
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o495
_journal_page_last               o497
_journal_paper_doi               10.1107/S160053680100722X
_journal_volume                  57
_journal_year                    2001
_chemical_formula_iupac          'C7 H5 I2 N O3'
_chemical_formula_moiety         'C7 H5 I2 N O3'
_chemical_formula_sum            'C7 H5 I2 N O3'
_chemical_formula_weight         404.92
_chemical_name_systematic
;
3,5-Diiodo-4-oxo-1,4-dihydropyridine-1-acetic acid
;
_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'
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 97.3860(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.5577(2)
_cell_length_b                   10.7752(3)
_cell_length_c                   11.0632(3)
_cell_measurement_reflns_used    2295
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.53
_cell_measurement_theta_min      2.65
_cell_volume                     1011.68(5)
_computing_cell_refinement       'DENZO and COLLECT'
_computing_data_collection
'DENZO (Otwinowski and Minor, 1997) and COLLECT (Hooft, 1998)'
_computing_data_reduction        'DENZO and COLLECT'
_computing_molecular_graphics    'ORTEP-3 (Farrugia, 1997)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full .988
_diffrn_measured_fraction_theta_max .988
_diffrn_measurement_device_type  'Enraf-Nonius KappaCCD area-detector'
_diffrn_measurement_method       '\f and \w scans to fill Ewald sphere'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enraf-Nonius FR591 rotating-anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     .71073
_diffrn_reflns_av_R_equivalents  .1055
_diffrn_reflns_av_sigmaI/netI    .0656
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            8844
_diffrn_reflns_theta_full        27.53
_diffrn_reflns_theta_max         27.53
_diffrn_reflns_theta_min         2.65
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count none
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    6.192
_exptl_absorpt_correction_T_max  .7471
_exptl_absorpt_correction_T_min  .1908
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
using multiple and symmetry-related data measurements via the program
SORTAV (Blessing, 1995)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.658
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       lozenge
_exptl_crystal_F_000             736
_exptl_crystal_size_max          .40
_exptl_crystal_size_mid          .10
_exptl_crystal_size_min          .05
_refine_diff_density_max         1.294
_refine_diff_density_min         -4.105
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     120
_refine_ls_number_reflns         2295
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          .0530
_refine_ls_R_factor_gt           .0500
_refine_ls_shift/su_max          .001
_refine_ls_shift/su_mean         .000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w = 1/[\s^2^(Fo^2^)+(0.0986P)^2^+0.3356P] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         .1364
_reflns_number_gt                2145
_reflns_number_total             2295
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ob6039.cif
_cod_data_source_block           I
_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.

'_geom_bond_publ_flag' value 'Y' changed to 'y' according to
'/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29 (5
times).

'_geom_bond_publ_flag' value 'N' changed to 'n' according to
'/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29 (13 times).

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 'Multi-scan'
changed to 'multi-scan' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

'_geom_bond_publ_flag'
value 'Y' changed to 'y' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29 (5
times).

'_geom_bond_publ_flag' value 'N' changed to 'n' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29 (13
times).

'_geom_angle_publ_flag' value 'N' changed to 'n' according
to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary
named 'cif_core.dic' version 2.4.1 from 2010-06-29 (25
times).

'_geom_angle_publ_flag' value 'Y' changed to 'y' according
to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary
named 'cif_core.dic' version 2.4.1 from 2010-06-29 (3
times).

'_geom_torsion_publ_flag' value 'N' changed to 'n' according
to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary
named 'cif_core.dic' version 2.4.1 from 2010-06-29 (16
times).

'_geom_torsion_publ_flag' value 'Y' changed to 'y' according
to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary
named 'cif_core.dic' version 2.4.1 from 2010-06-29 (2 times).

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2200325
_cod_database_fobs_code          2200325