Cobalt/Copper-Cocatalyzed Synthesis of Imidazo[1,2-a:3,4-a']dipyridiniums from 2H-[1,2'-Bipyridin]-2-ones and 2-Bromoacetophenones.
Li, Ting; Fu, Chen; Ma, Qinge; Sang, Zhipei; Yang, Yuhan; Yang, Hao; Lv, Rongrong; Li, Bo; The Journal of organic chemistry 82 (2017) 10263–10270; doi:10.1021/acs.joc.7b01742

data_4032841
_publ_section_title
;
 Cobalt/Copper-Cocatalyzed Synthesis of Imidazo[1,2-a:3,4-a']dipyridiniums
 from 2H-[1,2'-Bipyridin]-2-ones and 2-Bromoacetophenones.
;
_journal_issue                   19
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              10263
_journal_page_last               10270
_journal_paper_doi               10.1021/acs.joc.7b01742
_journal_volume                  82
_journal_year                    2017
_chemical_formula_moiety         'C19 H14 N2 O2'
_chemical_formula_sum            'C19 H14 N2 O2'
_chemical_formula_weight         302.32
_chemical_name_systematic
; 
 ? 
;
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_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
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_cell_angle_beta                 91.873(7)
_cell_angle_gamma                97.603(7)
_cell_formula_units_Z            2
_cell_length_a                   4.5484(4)
_cell_length_b                   12.7871(12)
_cell_length_c                   13.9287(14)
_cell_measurement_reflns_used    5351
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      28.9352
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_cell_volume                     721.31(13)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
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_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       15
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_diffrn_reflns_theta_max         25.99
_diffrn_reflns_theta_min         3.26
_exptl_absorpt_coefficient_mu    0.092
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.92997
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.392
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             316
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_refine_ls_number_reflns         2837
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_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1533
_refine_ls_wR_factor_ref         0.1965
_reflns_number_gt                1622
_reflns_number_total             2837
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo7b01742_si_002.cif
_cod_data_source_block           p
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 

 Adding full bibliography for 4032841.cif.
;
_cod_original_cell_volume        721.31(12)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4032841