Substituent Group Variations Directing the Molecular Packing, Electronic Structure, and Aggregation-Induced Emission Property of Isophorone Derivatives
Zheng Zheng; Zhipeng Yu; Mingdi Yang; Feng Jin; Qiong Zhang; Hongping Zhou; Jieying Wu; Yupeng Tian; Journal of Organic Chemistry 78 (2013) 3222–3234; doi:10.1021/jo400116j

data_4028104
_publ_section_title
;
 Substituent Group Variations Directing the Molecular Packing, Electronic
 Structure, and Aggregation-Induced Emission Property of Isophorone
 Derivatives
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              3222
_journal_page_last               3234
_journal_paper_doi               10.1021/jo400116j
_journal_volume                  78
_journal_year                    2013
_chemical_formula_moiety         'C22 H20 N4'
_chemical_formula_sum            'C22 H20 N4'
_chemical_formula_weight         340.42
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.000(5)
_cell_angle_beta                 90.751(5)
_cell_angle_gamma                90.000(5)
_cell_formula_units_Z            4
_cell_length_a                   6.149(5)
_cell_length_b                   7.323(5)
_cell_length_c                   40.953(5)
_cell_measurement_reflns_used    3026
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      23.18
_cell_measurement_theta_min      2.83
_cell_volume                     1844(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0309
_diffrn_reflns_av_sigmaI/netI    0.0337
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       48
_diffrn_reflns_limit_l_min       -46
_diffrn_reflns_number            13493
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         0.99
_exptl_absorpt_coefficient_mu    0.075
_exptl_absorpt_correction_T_max  0.9852
_exptl_absorpt_correction_T_min  0.9780
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.226
_exptl_crystal_description       needle
_exptl_crystal_F_000             720
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.198
_refine_diff_density_min         -0.291
_refine_diff_density_rms         0.067
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.995
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     237
_refine_ls_number_reflns         3248
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.995
_refine_ls_R_factor_all          0.0795
_refine_ls_R_factor_gt           0.0475
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1290
_refine_ls_wR_factor_ref         0.1608
_reflns_number_gt                2169
_reflns_number_total             3248
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo400116j_si_003.cif
_cod_data_source_block           zz
_cod_original_sg_symbol_H-M      'P 1 21/c 1 '
_cod_database_code               4028104