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

data_7230322
_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_absolute_configuration unk
_chemical_compound_source        non-photochromic
_chemical_formula_moiety         'C17 H20 N2 O'
_chemical_formula_sum            'C17 H20 N2 O'
_chemical_formula_weight         268.35
_chemical_name_common            3Me-5MSAP
_chemical_name_systematic
(E)-2-(tert-butyl)-6-(((5-methylpyridin-3-yl)imino)methyl)phenol
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2016/6
_audit_update_record
;
2017-12-30 deposited with the CCDC.
2018-03-20 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   6.0801(5)
_cell_length_b                   15.1860(13)
_cell_length_c                   16.4018(14)
_cell_measurement_reflns_used    13932
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.61
_cell_measurement_theta_min      3.58
_cell_volume                     1514.4(2)
_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-2014/07 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2016/6 (Sheldrick, 2016)'
_computing_structure_solution    'SHELXT 2014/4 (Sheldrick, 2014)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type
'RIGAKU XtaLab mini CCD Area Detector(MercuryIII)'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0364
_diffrn_reflns_av_unetI/netI     0.0278
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            16034
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.483
_diffrn_reflns_theta_min         3.574
_diffrn_source                   'fine-focued X-ray tube'
_exptl_absorpt_coefficient_mu    0.074
_exptl_absorpt_correction_T_max  0.986
_exptl_absorpt_correction_T_min  0.793
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Absorption was corrected by ABSCOR'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.177
_exptl_crystal_description       prism
_exptl_crystal_F_000             576
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: methanol'
_exptl_crystal_size_max          0.335
_exptl_crystal_size_mid          0.234
_exptl_crystal_size_min          0.187
_refine_diff_density_max         0.183
_refine_diff_density_min         -0.260
_refine_diff_density_rms         0.057
_refine_ls_abs_structure_details
;
 Flack x determined using 1025 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.1(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.052
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     186
_refine_ls_number_reflns         3465
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.052
_refine_ls_R_factor_all          0.0573
_refine_ls_R_factor_gt           0.0473
_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^)+(0.0703P)^2^+0.0891P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1150
_refine_ls_wR_factor_ref         0.1221
_reflns_Friedel_coverage         0.726
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     1.000
_reflns_number_gt                2919
_reflns_number_total             3465
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8ce00003d2.cif
_cod_data_source_block           shelx_CCDC7
_cod_depositor_comments
'Adding full bibliography for 7230315--7230335.cif.'
_cod_database_code               7230322
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_min   0.976
_shelx_estimated_absorpt_t_max   0.986
_shelx_res_checksum              77980