Water-assisted ground state intra-molecular proton transfer in 2,5-dihydroxy-substituted azobenzenes: experimental and computational studies
Das, Dhiraj; Roy Choudhury, Angshuman; CrystEngComm 21 (2019) 2373–; doi:10.1039/C8CE01878B

data_7232396
_publ_section_title
;
 Water-assisted ground state intra-molecular proton transfer in
 2,5-dihydroxy-substituted azobenzenes: experimental and computational
 studies
;
_journal_issue                   14
_journal_name_full               CrystEngComm
_journal_page_first              2373
_journal_paper_doi               10.1039/C8CE01878B
_journal_volume                  21
_journal_year                    2019
_chemical_formula_moiety         'C13 H9 N3 O2'
_chemical_formula_sum            'C13 H9 N3 O2'
_chemical_formula_weight         239.23
_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'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     iterative
_audit_creation_date             2018-11-02
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2018-11-02 deposited with the CCDC.    2019-02-19 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 92.333(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.0695(11)
_cell_length_b                   4.4780(5)
_cell_length_c                   23.887(3)
_cell_measurement_reflns_used    4251
_cell_measurement_temperature    100.0(2)
_cell_measurement_theta_max      26.45
_cell_measurement_theta_min      2.70
_cell_volume                     1076.2(2)
_computing_cell_refinement       'Bruker APEX2'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker, SAINT'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'olex2.solve (Bourhis et al., 2015)'
_diffrn_ambient_temperature      100.0(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker D8 VENTURE'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0489
_diffrn_reflns_av_unetI/netI     0.0322
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            15398
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.522
_diffrn_reflns_theta_min         2.024
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.104
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            'clear dark orange'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   dark
_exptl_crystal_colour_primary    orange
_exptl_crystal_density_diffrn    1.476
_exptl_crystal_description       block
_exptl_crystal_F_000             496
_exptl_crystal_size_max          0.327
_exptl_crystal_size_mid          0.121
_exptl_crystal_size_min          0.096
_refine_diff_density_max         0.218
_refine_diff_density_min         -0.286
_refine_diff_density_rms         0.059
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.087
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     171
_refine_ls_number_reflns         2226
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.087
_refine_ls_R_factor_all          0.0782
_refine_ls_R_factor_gt           0.0510
_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^)+(0.0708P)^2^+0.7227P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1367
_refine_ls_wR_factor_ref         0.1544
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1626
_reflns_number_total             2226
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8ce01878b2.cif
_cod_data_source_block           a_a
_cod_depositor_comments
'Adding full bibliography for 7232391--7232396.cif.'
_cod_database_code               7232396
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_max   0.990
_shelx_estimated_absorpt_t_min   0.967
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C2(H2A), C8(H8), C5(H5), C3(H3), C11(H11), C9(H9), C10(H10)
;
_olex2_submission_special_instructions 'No special instructions were received'