Role of substituents on resonance assisted hydrogen bonding vs. intermolecular hydrogen bonding
Gurbanov, Atash V.; Kuznetsov, Maxim L.; Demukhamedova, Svetlana D.; Alieva, Irada N.; Godjaev, Niftali M.; Zubkov, Fedor I.; Mahmudov, Kamran T.; Pombeiro, Armando J. L.; CrystEngComm 22 (2020) 628–633; doi:10.1039/C9CE01744E

data_7239649
_publ_section_title
;
 Role of substituents on resonance assisted hydrogen bonding vs.
 intermolecular hydrogen bonding
;
_journal_issue                   4
_journal_name_full               CrystEngComm
_journal_page_first              628
_journal_page_last               633
_journal_paper_doi               10.1039/C9CE01744E
_journal_volume                  22
_journal_year                    2020
_chemical_formula_moiety         'C15 H18 N4 O2'
_chemical_formula_sum            'C15 H18 N4 O2'
_chemical_formula_weight         286.33
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2019-11-04 deposited with the CCDC.	2019-12-20 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 93.758(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.6003(4)
_cell_length_b                   19.5864(12)
_cell_length_c                   10.5405(6)
_cell_measurement_reflns_used    9944
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      25.62
_cell_measurement_theta_min      2.69
_cell_volume                     1565.71(15)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX3'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0485
_diffrn_reflns_av_unetI/netI     0.0370
_diffrn_reflns_Laue_measured_fraction_full 0.993
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            24894
_diffrn_reflns_point_group_measured_fraction_full 0.993
_diffrn_reflns_point_group_measured_fraction_max 0.989
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.724
_diffrn_reflns_theta_min         2.198
_exptl_absorpt_coefficient_mu    0.084
_exptl_absorpt_correction_T_max  0.982
_exptl_absorpt_correction_T_min  0.971
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2003)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.215
_exptl_crystal_description       plate
_exptl_crystal_F_000             608
_exptl_crystal_size_max          0.260
_exptl_crystal_size_mid          0.180
_exptl_crystal_size_min          0.140
_refine_diff_density_max         0.113
_refine_diff_density_min         -0.149
_refine_diff_density_rms         0.032
_refine_ls_abs_structure_details
;
 Flack x determined using 2104 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.2(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     385
_refine_ls_number_reflns         5928
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.027
_refine_ls_R_factor_all          0.0506
_refine_ls_R_factor_gt           0.0379
_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^)+(0.0562P)^2^+0.0871P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0910
_refine_ls_wR_factor_ref         0.0994
_reflns_Friedel_coverage         0.932
_reflns_Friedel_fraction_full    0.993
_reflns_Friedel_fraction_max     0.986
_reflns_number_gt                4939
_reflns_number_total             5928
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9ce01744e2.cif
_cod_data_source_block           lik2
_cod_depositor_comments
;Adding full bibliography for 7239646--7239650.cif.

 Adding full bibliography for 7239646--7239650.cif.
;
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               7239649
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.979
_shelx_estimated_absorpt_t_max   0.988
_shelx_res_checksum              57217