On-Surface Synthesis of a π-Extended Diaza[8]circulene.
Nakamura, Kimihiro; Li, Qiang-Qiang; Krejčí, Ondřej; Foster, Adam S.; Sun, Kewei; Kawai, Shigeki; Ito, Shingo; Journal of the American Chemical Society  (2020) –; doi:10.1021/jacs.0c02534

data_4134967
_publ_section_title
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 On-Surface Synthesis of a \p-Extended Diaza[8]circulene.
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_journal_name_full               'Journal of the American Chemical Society'
_journal_paper_doi               10.1021/jacs.0c02534
_journal_year                    2020
_chemical_formula_sum            'C67.51 H54.04 Cl N2'
_chemical_formula_weight         928.79
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_cell_angle_alpha                90
_cell_angle_beta                 100.6258(17)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   15.8416(8)
_cell_length_b                   20.2505(10)
_cell_length_c                   15.2623(8)
_cell_measurement_reflns_used    5715
_cell_measurement_temperature    100.(2)
_cell_measurement_theta_max      25.2855
_cell_measurement_theta_min      2.4269
_cell_volume                     4812.2(4)
_computing_cell_refinement       'SAINT V8.38A (Bruker AXS Inc., 2017)'
_computing_data_collection       'APEX3 (Bruker AXS Inc., 2018)'
_computing_data_reduction        'SAINT V8.38A (Bruker AXS Inc., 2017)'
_computing_molecular_graphics    'XP (Bruker AXS Inc., 2018)'
_computing_publication_material  'APEX3 (Bruker AXS Inc., 2018)'
_computing_structure_refinement  'SHELXL-2017/1 (Sheldrick, 2017)'
_computing_structure_solution    'XT, VERSION 2014/5'
_diffrn_ambient_temperature      100.(2)
_diffrn_detector_area_resol_mean 7.4074
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Photon II CPADs detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  'Multilayer Mirror'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1297
_diffrn_reflns_av_unetI/netI     0.1031
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            38577
_diffrn_reflns_theta_full        25.40
_diffrn_reflns_theta_max         25.40
_diffrn_reflns_theta_min         2.29
_diffrn_source                   'Incoatec microfocus source'
_diffrn_source_type              'Bruker D8 Quest'
_exptl_absorpt_coefficient_mu    0.127
_exptl_absorpt_correction_T_max  0.98
_exptl_absorpt_correction_T_min  0.72
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
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SADABS-2016/2 - Bruker AXS area detector scaling and absorption correction
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.282
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1961
_exptl_crystal_size_max          0.240
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.120
_refine_diff_density_max         1.057
_refine_diff_density_min         -0.456
_refine_ls_extinction_coef       0.013(2)
_refine_ls_extinction_method     'SHELXL-2017/1 (Sheldrick 2017)'
_refine_ls_goodness_of_fit_ref   1.028
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     714
_refine_ls_number_reflns         8821
_refine_ls_number_restraints     208
_refine_ls_restrained_S_all      1.068
_refine_ls_R_factor_all          0.1550
_refine_ls_R_factor_gt           0.0864
_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^)+(0.1556P)^2^+3.3694P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2371
_refine_ls_wR_factor_ref         0.2880
_reflns_number_gt                4853
_reflns_number_total             8821
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja0c02534_si_005.cif
_cod_data_source_block           10b
_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 7556 2019-12-06 15:28:31Z antanas 
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_cod_database_code               4134967
_shelx_res_checksum              79078
_shelx_hkl_checksum              3826