The influence of structure on the methyl group dynamics of the polymorphic complexes: 6,6'-dimethyl-2,2'-dipyridyl with halo derivatives of benzoquinone acids
Rok, Magdalena; Moskwa, Marcin; Dopieralski, Przemyslaw; Medycki, Wojciech; Zamponi, Michaela; Bator, Grazyna; CrystEngComm  (2020) –; doi:10.1039/D0CE00973C

data_7241199
_publ_section_title
;
 The influence of structure on the methyl group dynamics of the
 polymorphic complexes: 6,6'-dimethyl-2,2'-dipyridyl with halo derivatives
 of benzoquinone acids
;
_journal_name_full               CrystEngComm
_journal_paper_doi               10.1039/D0CE00973C
_journal_year                    2020
_chemical_formula_moiety         'C12 H13 N2, C6 H Br2 O4'
_chemical_formula_sum            'C18 H14 Br2 N2 O4'
_chemical_formula_weight         482.13
_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   mixed
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2020-06-15 deposited with the CCDC.	2020-09-09 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 108.83(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   15.252(4)
_cell_length_b                   11.926(2)
_cell_length_c                   10.272(4)
_cell_measurement_reflns_used    8943
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      36.1540
_cell_measurement_theta_min      3.3870
_cell_volume                     1768.4(9)
_computing_cell_refinement
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CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
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_computing_data_collection
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CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
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_computing_data_reduction
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CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
;
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 8.3359
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Xcalibur, Sapphire2, large Be window'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0962
_diffrn_reflns_av_unetI/netI     0.0506
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            16895
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.495
_diffrn_reflns_theta_max         25.495
_diffrn_reflns_theta_min         3.299
_diffrn_source                   'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    4.611
_exptl_absorpt_correction_T_max  0.565
_exptl_absorpt_correction_T_min  0.363
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
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CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
Analytical numeric absorption correction using a multifaceted crystal
			model based on expressions derived by R.C. Clark & J.S. Reid.
(Clark, R. C. & Reid, J. S. (1995). Acta Cryst. A51, 887-897)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'dark red'
_exptl_crystal_density_diffrn    1.811
_exptl_crystal_density_meas      ?
_exptl_crystal_description       block
_exptl_crystal_F_000             952
_exptl_crystal_size_max          0.420
_exptl_crystal_size_mid          0.240
_exptl_crystal_size_min          0.190
_refine_diff_density_max         0.904
_refine_diff_density_min         -0.836
_refine_diff_density_rms         0.150
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.031
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     243
_refine_ls_number_reflns         3297
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.031
_refine_ls_R_factor_all          0.0499
_refine_ls_R_factor_gt           0.0429
_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^)+(0.0716P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1098
_refine_ls_wR_factor_ref         0.1158
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2826
_reflns_number_total             3297
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0ce00973c2.cif
_cod_data_source_block           1a
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_crystal_density_meas' value 'not measured' was
changed to '?' -- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 7556 2019-12-06 15:28:31Z antanas 
;
_cod_original_cell_volume        1768(4)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7241199
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.248
_shelx_estimated_absorpt_t_max   0.475
_shelx_res_checksum              79783