3-<i>p</i>-Tolylimidazo[1,2-<i>b</i>]pyridazine
Wang, Ling-Ling; Acta Crystallographica Section E 63 (2007) o1749–o1750; doi:10.1107/S1600536807009944

data_2213002
_publ_section_title
;
 3-<i>p</i>-Tolylimidazo[1,2-<i>b</i>]pyridazine
;
_journal_coeditor_code           SJ2222
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1749
_journal_page_last               o1750
_journal_paper_doi               10.1107/S1600536807009944
_journal_volume                  63
_journal_year                    2007
_chemical_formula_iupac          'C13 H11 N3'
_chemical_formula_moiety         'C13 H11 N3'
_chemical_formula_sum            'C13 H11 N3'
_chemical_formula_weight         209.25
_chemical_melting_point          374.5
_chemical_name_systematic
;
3-p-Tolylimidazo[1,2-b]pyridazine
;
_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'
_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                 94.285(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.6240(6)
_cell_length_b                   10.6353(12)
_cell_length_c                   17.975(2)
_cell_measurement_reflns_used    2134
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      55.010
_cell_measurement_theta_min      4.545
_cell_volume                     1072.1(2)
_computing_cell_refinement       'SAINT (Bruker, 1997)'
_computing_data_collection       'SMART (Bruker, 1997)'
_computing_data_reduction        SAINT
_computing_molecular_graphics
'SHELXTL (Bruker, 1997) and MERCURY (Bruno <i>et al.</i>,  2002)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Bruker SMART 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  0.0730
_diffrn_reflns_av_sigmaI/netI    0.0547
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            6153
_diffrn_reflns_theta_full        26.99
_diffrn_reflns_theta_max         26.99
_diffrn_reflns_theta_min         2.23
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.080
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.75076
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.296
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             440
_exptl_crystal_size_max          0.518
_exptl_crystal_size_mid          0.497
_exptl_crystal_size_min          0.321
_refine_diff_density_max         0.166
_refine_diff_density_min         -0.192
_refine_ls_extinction_coef       0.008(3)
_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   1.066
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     150
_refine_ls_number_reflns         2319
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.066
_refine_ls_R_factor_all          0.0590
_refine_ls_R_factor_gt           0.0456
_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^)+(0.0582P)^2^+0.0061P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1215
_refine_ls_wR_factor_ref         0.1285
_reflns_number_gt                1769
_reflns_number_total             2319
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            sj2222.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.

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.

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               2213002
_cod_database_fobs_code          2213002