Relationship between crystal structures and photochromic properties of N-salicylideneaminopyridine derivatives
Sugiyama, Haruki; Uekusa, Hidehiro; CrystEngComm 20 (2018) 2144–; doi:10.1039/C8CE00003D

data_7230317
_publ_section_title
;
 Relationship between crystal structures and photochromic properties of
 N-salicylideneaminopyridine derivatives
;
_journal_issue                   15
_journal_name_full               CrystEngComm
_journal_page_first              2144
_journal_paper_doi               10.1039/C8CE00003D
_journal_volume                  20
_journal_year                    2018
_chemical_compound_source        non-photochromic
_chemical_formula_moiety         'C19 H15 Br N2 O5'
_chemical_formula_sum            'C19 H15 Br N2 O5'
_chemical_formula_weight         431.24
_chemical_name_common            5Br3SAP-3,4OHBA
_chemical_name_systematic
'4-bromo-2-[(E)-3-pyridyliminomethyl]phenol/3,4-dihydroxybenzoic acid'
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2018/1
_audit_update_record
;
2018-01-01 deposited with the CCDC.
2018-03-20 downloaded from the CCDC.
;
_cell_angle_alpha                106.506(6)
_cell_angle_beta                 103.783(4)
_cell_angle_gamma                112.254(10)
_cell_formula_units_Z            2
_cell_length_a                   8.5222(14)
_cell_length_b                   10.8771(15)
_cell_length_c                   11.5925(19)
_cell_measurement_reflns_used    4889
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      27.43
_cell_measurement_theta_min      3.19
_cell_volume                     878.2(3)
_computing_cell_refinement       'PROCESS-AUTO (Rigaku, 1998)'
_computing_data_collection       'PROCESS-AUTO (Rigaku, 1998)'
_computing_data_reduction        'PROCESS-AUTO (Rigaku, 1998)'
_computing_molecular_graphics    'ORTEP-3 (Farrugia, 2008)'
_computing_publication_material  'SHELXL-2016/6 (Sheldrick, 2016)'
_computing_structure_refinement  'SHELXL-2018/1 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'RIGAKU R-AXIS RAPID IP Area Detector'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0758
_diffrn_reflns_av_unetI/netI     0.1082
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.988
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            8609
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.988
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.431
_diffrn_reflns_theta_min         3.184
_diffrn_source                   'rotating anode X-ray tube'
_exptl_absorpt_coefficient_mu    2.375
_exptl_absorpt_correction_T_max  0.932
_exptl_absorpt_correction_T_min  0.456
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Absorption was corrected by ABSCOR'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.631
_exptl_crystal_description       block
_exptl_crystal_F_000             436
_exptl_crystal_recrystallization_method 'Re-crystallisation from solvent: THF'
_exptl_crystal_size_max          0.070
_exptl_crystal_size_mid          0.050
_exptl_crystal_size_min          0.030
_refine_diff_density_max         0.359
_refine_diff_density_min         -0.457
_refine_diff_density_rms         0.077
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.963
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     244
_refine_ls_number_reflns         3953
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.963
_refine_ls_R_factor_all          0.1664
_refine_ls_R_factor_gt           0.0644
_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^)+(0.0627P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1234
_refine_ls_wR_factor_ref         0.1606
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1664
_reflns_number_total             3953
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8ce00003d2.cif
_cod_data_source_block           shelx_CCDC2
_cod_depositor_comments
'Adding full bibliography for 7230315--7230335.cif.'
_cod_original_cell_volume        878.2(2)
_cod_database_code               7230317
_shelx_shelxl_version_number     2018/1
_shelx_estimated_absorpt_t_min   0.851
_shelx_estimated_absorpt_t_max   0.932
_shelx_res_checksum              29184