3-Hydroxypyridinium perchlorate
Jing-Cai Yao; Jin-Bo Guo; Li Zhang; Hai-Yan Wen; Wei Wang; Acta Crystallographica Section E 63 (2007) o3678–o3678; doi:10.1107/S160053680703663X

data_2215242
_publ_section_title
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 3-Hydroxypyridinium perchlorate
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_journal_coeditor_code           PR2015
_journal_issue                   9
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o3678
_journal_page_last               o3678
_journal_paper_doi               10.1107/S160053680703663X
_journal_volume                  63
_journal_year                    2007
_chemical_formula_iupac          'C5 H6 N O +, Cl O4 -'
_chemical_formula_moiety         'C5 H6 N O1 +, Cl O4 -'
_chemical_formula_sum            'C5 H6 Cl N O5'
_chemical_formula_weight         195.56
_chemical_name_systematic
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3-Hydroxypyridinium perchlorate
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_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL97
_cell_angle_alpha                100.346(9)
_cell_angle_beta                 94.286(9)
_cell_angle_gamma                101.732(9)
_cell_formula_units_Z            2
_cell_length_a                   5.289(5)
_cell_length_b                   8.308(8)
_cell_length_c                   9.047(8)
_cell_measurement_reflns_used    1662
_cell_measurement_temperature    291(2)
_cell_measurement_theta_max      28.22
_cell_measurement_theta_min      2.30
_cell_volume                     380.3(6)
_computing_cell_refinement       APEX2
_computing_data_collection       'APEX2 (Bruker, 2004)'
_computing_data_reduction        'SAINT (Bruker, 2004)'
_computing_molecular_graphics    'SHELXTL (Bruker, 1998)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      291(2)
_diffrn_measured_fraction_theta_full 0.971
_diffrn_measured_fraction_theta_max 0.971
_diffrn_measurement_device_type  'Bruker APEXII CCD area-detector'
_diffrn_measurement_method       '\f and \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  0.0177
_diffrn_reflns_av_sigmaI/netI    0.0252
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            2682
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         2.30
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.484
_exptl_absorpt_correction_T_max  0.9089
_exptl_absorpt_correction_T_min  0.8557
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.707
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             200
_exptl_crystal_size_max          0.33
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.288
_refine_diff_density_min         -0.274
_refine_ls_extinction_coef       0.162(12)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL97
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     111
_refine_ls_number_reflns         1375
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.044
_refine_ls_R_factor_all          0.0344
_refine_ls_R_factor_gt           0.0318
_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^)+(0.0414P)^2^+0.1807P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0823
_refine_ls_wR_factor_ref         0.0850
_reflns_number_gt                1266
_reflns_number_total             1375
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            pr2015.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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 'Triclinic' changed to 'triclinic'
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        380.4(6)
_cod_database_code               2215242
_cod_database_fobs_code          2215242