Synthesis of 5,12-Diazapentacenes and Their Properties.
Garcia, Rosalva C.; Pech, Matthew J.; Sommer, Roger D.; Gorman, Christopher B.; The Journal of organic chemistry  (2019) –; doi:10.1021/acs.joc.9b01628

data_4036054
_publ_section_title
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 Synthesis of 5,12-Diazapentacenes and Their Properties.
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_journal_name_full               'The Journal of organic chemistry'
_journal_paper_doi               10.1021/acs.joc.9b01628
_journal_year                    2019
_chemical_formula_moiety         'C20 H14 N4'
_chemical_formula_sum            'C20 H14 N4'
_chemical_formula_weight         310.35
_chemical_name_common            RCG-0191a-6
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   mixed
_cell_angle_alpha                90
_cell_angle_beta                 100.262(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.4305(7)
_cell_length_b                   8.8050(6)
_cell_length_c                   17.1263(11)
_cell_measurement_reflns_used    115
_cell_measurement_temperature    100.(2)
_cell_measurement_theta_max      26.4135
_cell_measurement_theta_min      2.1226
_cell_volume                     1547.73(18)
_computing_cell_refinement       'APEX3 v2017.3-0 (Bruker AXS)'
_computing_data_collection       'Bruker Instrument Service v2013.12.0.0'
_computing_data_reduction        'SAINT V8.38A (Bruker AXS Inc., 2017)'
_computing_molecular_graphics    'shelXle (C.B. Huebschle, rev 833)'
_computing_structure_refinement  'SHELXL-2016/6 (Sheldrick, 2016)'
_diffrn_ambient_temperature      100.(2)
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker-Nonius X8 Kappa APEX II'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0434
_diffrn_reflns_av_unetI/netI     0.0328
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            22855
_diffrn_reflns_theta_full        28.32
_diffrn_reflns_theta_max         28.32
_diffrn_reflns_theta_min         2.13
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.082
_exptl_absorpt_correction_T_max  0.99
_exptl_absorpt_correction_T_min  0.91
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 - Bruker AXS area detector scaling and absorption correction
;
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.332
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
_exptl_crystal_F_000             648
_exptl_crystal_size_max          0.219
_exptl_crystal_size_mid          0.104
_exptl_crystal_size_min          0.085
_refine_diff_density_max         0.275
_refine_diff_density_min         -0.259
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.030
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     225
_refine_ls_number_reflns         3845
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.030
_refine_ls_R_factor_all          0.0627
_refine_ls_R_factor_gt           0.0407
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0383P)^2^+0.5986P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0878
_refine_ls_wR_factor_ref         0.0974
_reflns_number_gt                2917
_reflns_number_total             3845
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo9b01628_si_002.cif
_cod_data_source_block           rds772
_cod_depositor_comments
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The following automatic conversions were performed:

data item '_exptl_absorpt_correction_type' value 'Multi-Scan' was
changed to 'multi-scan' in accordance with the
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
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_cod_database_code               4036054
_shelx_res_checksum              98302
_shelx_hkl_checksum              31854