2-Iodo-4,6-dimethylpyrimidine
Jiang, Qing-Min; Mao, Gui-Yun; Hao, Lu-Ye; Hao, Xin-Qi; Song, Mao-Ping; Acta Crystallographica Section E 66 (2010) o686–; doi:10.1107/S1600536810005660

data_2225369
_publ_section_title
;
 2-Iodo-4,6-dimethylpyrimidine
;
_journal_coeditor_code           SI2242
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o686
_journal_paper_doi               10.1107/S1600536810005660
_journal_volume                  66
_journal_year                    2010
_chemical_formula_iupac          'C6 H7 I N2'
_chemical_formula_moiety         'C6 H7 I N2'
_chemical_formula_sum            'C6 H7 I N2'
_chemical_formula_weight         234.04
_chemical_name_systematic
;
2-Iodo-4,6-dimethylpyrimidine
;
_space_group_IT_number           62
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_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                   7.930(2)
_cell_length_b                   7.0256(19)
_cell_length_c                   14.499(4)
_cell_measurement_reflns_used    2976
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      24.89
_cell_measurement_theta_min      2.81
_cell_volume                     807.8(4)
_computing_cell_refinement       'SAINT (Bruker, 2004)'
_computing_data_collection       'APEX2 (Bruker, 2004)'
_computing_data_reduction        'SAINT (Bruker, 2004)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker SMART APEXII CCD area-detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0286
_diffrn_reflns_av_sigmaI/netI    0.0210
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            5541
_diffrn_reflns_theta_full        25.49
_diffrn_reflns_theta_max         25.49
_diffrn_reflns_theta_min         2.81
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.884
_exptl_absorpt_correction_T_max  0.4960
_exptl_absorpt_correction_T_min  0.3696
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.924
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             440
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.21
_refine_diff_density_max         0.812
_refine_diff_density_min         -0.213
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.097
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     57
_refine_ls_number_reflns         817
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.097
_refine_ls_R_factor_all          0.0290
_refine_ls_R_factor_gt           0.0259
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0375P)^2^+0.2590P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0642
_refine_ls_wR_factor_ref         0.0663
_reflns_number_gt                739
_reflns_number_total             817
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            si2242.cif
_cod_data_source_block           I
_cod_depositor_comments
;
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      Pnma
_cod_database_code               2225369
_cod_database_fobs_code          2225369